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278 results about "Outfall" patented technology

An outfall is the discharge point of a waste stream into a body of water; alternatively it may be the outlet of a river, drain or a sewer where it discharges into the sea, a lake or ocean. In the United States, industrial facilities that discharge storm water which was exposed to industrial activities at the site are required to have a multi-sector general permit. Issuing permits for storm water is delegated to the individual states that are authorized by the EPA. Facilities that apply for a permit must specify the number of outfalls at the site. According to the EPA's 2008 MSGP (final version), outfalls are locations where the stormwater exits the facility, including pipes, ditches, swales, and other structures that transport stormwater. If there is more than one outfall present, measure at the primary outfall (i.e., the outfall with the largest volume of stormwater discharge associated with industrial activity).

Water purifying device

ActiveCN224467599UMeet various water needslow costWater useReverse osmosis
The utility model provides a kind of water purification device, it includes: reverse osmosis water waterway, it includes front filter element, reverse osmosis filter element and reverse osmosis water waterway component;Ultrafiltration water waterway, it includes ultrafiltration filter element and ultrafiltration water waterway component;Wherein, the water purification device further includes post filter element, the water outlet of the reverse osmosis water waterway with the water outlet of the ultrafiltration water waterway communication back with the post filter element communication;Wherein, the water purification device includes at least including three kinds of mode: first mode, the ultrafiltration water waterway does not water, the reverse osmosis direct drinking water way water;Second mode, the reverse osmosis water waterway does not water, the ultrafiltration water waterway water;Third mode, the reverse osmosis direct drinking water way and the ultrafiltration direct drinking water way water respectively.By the present application can provide a variety of different purification degree direct drinking water, while saving cost meets the various water demand of customer.
Owner:KUNSHAN ECO WATER SYST CO LTD

Ecological three-dimensional greening drip irrigation system

The utility model discloses an ecological three -dimensional afforestation drip irrigation system relates to afforestation drip irrigation technical field, including the stand, and the bottom of stand is provided with the support bottom plate, and the front side of stand is provided with the rest platform, and the top of rest platform places the afforestation pot, the back of stand is provided with the water storage tank, and the top of water storage tank is provided with the water supply branch pipe, and the water outlet of water supply branch pipe is provided with the water level valve, and the bottom of water storage tank is connected with semicircular pipe through water supply hose, and the inner wall of semicircular pipe is provided with the drip head. The utility model discloses a semicircular pipe can utilize the drip head and be arranged in the annular array on the top of afforestation pot and carry out drip irrigation to the plant, guarantee every position drip irrigation of plant even, through setting up the water level valve, when carrying out drip irrigation to the plant, the water of water supply branch pipe can be controlled through the up-and-down floating of floating plate, thereby the water level in the water storage tank will not change greatly, even if the water pressure in the water supply branch pipe changes greatly, also will not cause the influence to drip irrigation.
Owner:徐成果

A district heating mixed flow tank based on spoiler structure optimization

The application belongs to the technical field of heat supply equipment, and provides a regional heat supply mixing tank based on turbulence structure optimization, which comprises a first turbulence component and a second turbulence component arranged in a tank body along a water flow direction; the first turbulence component is located behind a low-temperature water inlet and behind a high-temperature water inlet, and is used for blocking the channel of cold water sticking to the bottom and actively inducing to the middle or upper part of the tank body; the second turbulence component is located in front of a medium-temperature water outlet, and is used for forcibly turning and cutting the mixed fluid about to flow out, so as to realize the thermal deviation homogenization of the mixed fluid. The mixing tank is used for hydraulic decoupling and heat mixing of a primary circuit and a secondary circuit of a heat network, and the internal turbulence structure is additionally arranged and optimized to eliminate the thermal stratification phenomenon in the tank, and then the temperature uniformity of the water outlet is improved.
Owner:NORTHEAST FORESTRY UNIV

Floor drain core and working method

PendingCN122327787AMechanical componentsOutfall
This invention discloses a drain core and its working method, relating to the field of building drainage system technology. It includes: a shell, a sealing seat, and a floating sealing assembly. The shell has a cylindrical structure with an inlet and a drainage channel formed inside. The sealing seat is detachably installed at the bottom of the shell, and has an outlet in the middle that communicates with the drainage channel. The floating sealing assembly is disposed within the drainage channel and includes a sealing element and a float positioned above the sealing element. The float can lift the sealing element under the buoyancy of the water in the drainage channel, opening the outlet. Furthermore, after the water level in the drainage channel drops, the float moves downward under the gravity of the floating sealing assembly, causing the sealing element to fit against the sealing seat to form a mechanical gravity seal. This invention eliminates the need for additional elastic triggering components, reducing the number of vulnerable mechanical components and lowering the probability of failure.
Owner:TAIZHOU NIXI SANITARY WARE CO LTD

A test device for a level gauge

The application relates to a testing device for a level meter, comprising: a water storage tank; a first liquid tank, the top of the first liquid tank being provided with a first water inlet and a first testing port, the first water inlet being communicated with the water storage tank through a first pipeline, the bottom of the first liquid tank being provided with a first water outlet, the first water outlet being communicated with the water storage tank through a second pipeline; a second liquid tank, the top of the second liquid tank being provided with a second water inlet and a second testing port, the second water inlet being communicated with the water storage tank through the first pipeline, the bottom of the second liquid tank being provided with a second water outlet, the second water outlet being communicated with the water storage tank through a third pipeline; the liquid in the water storage tank being delivered into the first liquid tank and / or the second liquid tank through a first delivery pump, the liquid in the first liquid tank being discharged into the water storage tank through the second pipeline under the action of gravity, the liquid in the second liquid tank being discharged into the water storage tank through a second circulating pump; the level meter detecting the liquid level in the first liquid tank from the first testing port and / or detecting the liquid level in the second liquid tank from the second testing port.
Owner:HANGZHOU MICROIMAGE INTELLIGENT CONTROL TECHNOLOGY CO LTD

Portable construction dust removal device

ActiveCN224404728UExpand coverageIncrease reaction forceWater leakageDust control
The utility model discloses a portable building construction dust collector, include: damping pool, backflow baffle, swivel joint, rotating pipe, atomizing spray head, power pipe, backwater pipe, water pipe, water tank, the central hole and the water leakage hole of damping pool's center are provided with, backflow baffle connects in the middle part of damping pool, swivel joint is connected on the central hole, and the top of rotating joint is connected in rotating pipe lower part, and atomizing spray head is connected in the front of rotating pipe, the top of power pipe is connected on the lateral wall of rotating pipe, and the lower part is located between damping pool, backflow baffle, water tank is located at the bottom of damping pool, and backwater pipe top is connected in the bottom of water leakage hole, and the top of water pipe is connected the bottom of swivel joint, and the inside of water tank is provided with water pump, and the bottom of water pipe is inserted into the water tank and is connected the water outlet of water pump, and the support is connected between damping pool, water tank. The utility model discloses can realize the rotation spray under the condition of not needing the external rotation power, and effectively expands the coverage of spray dust removal.
Owner:CHINA MCC 2 GRP CO LTD

A sunken drainage structure of an out-opening door

The utility model relates to the technical field of vertical hinged door, especially a sunken drainage structure of outside opening door, including lower frame, the lower frame includes indoor section bar and outdoor section bar, its characterized in that: the outdoor surface of outdoor section bar is provided with water storage frame, the bottom of water storage frame outdoor surface is provided with water outlet, the indoor surface of outdoor section bar is equipped with the drainage cavity that communicates in water storage frame, the bottom surface of drainage cavity is higher than the bottom surface of water storage frame, the top of outdoor section bar is equipped with the water inlet hole that communicates in drainage cavity, the indoor section bar and outdoor section bar are provided with the waterproof cavity, through setting up water storage frame at outdoor end and expanding water storage capacity, can temporarily store rainwater, and the rainwater collected by lower frame flows into water storage frame through drainage cavity, and is discharged outdoor through the water outlet of water storage frame, prevents rainwater from entering the house.
Owner:FOSHAN BEILU DOOR & WINDOW CO LTD

Sponge city rainwater recycling and purifying method

PendingCN122403645AWater storageOutfall
This application relates to a method for rainwater harvesting and purification in sponge cities, belonging to the field of rainwater harvesting and purification treatment. It includes installing a reversing valve along the rainwater flow path, with its two outlets connected to a sewage pipe network and a collection pipe network, respectively; a linear treatment ditch is installed at the end of the collection pipe network, allowing sewage flowing out of the collection pipe network to flow in the linear treatment ditch; a gradient purification unit is installed in the linear treatment ditch to purify the sewage; and an underground water storage space is provided. Beneficial technical effects: This sponge city rainwater harvesting and purification method utilizes gravity to guide rainwater flow, and harvests and purifies the rainwater during its flow. Rainwater harvesting and purification does not consume electricity, requires no specialized equipment or chemicals, and does not require personnel, significantly reducing costs. Furthermore, it requires a small land area for rainwater harvesting and purification, perfectly integrating into the urban ecological landscape.
Owner:CHINA RAILWAY 15TH BUREAU GROUP CORPORATION LIMITED +1

A perforated folded plate for a sedimentation basin and a sedimentation basin with an inclined installation of the perforated folded plate

ActiveCN224388139Uincreased turbulenceImprove settlement performanceSedimentation separationSludgeOutfall
The utility model belongs to water treatment technical field, specifically discloses a perforated folded plate for sedimentation tank and the sedimentation tank of oblique installation perforated folded plate. The perforated folded plate is the plate -like structure of undulating extension and includes at least three folded plate tops of undulating top end and three folded plate bottoms of undulating bottom end, and the folded plate top of perforated folded plate is adjacent to the folded plate bottom and is provided with a plurality of folded plate holes on or close to the folded plate top. The water inlet and the water outlet of the sedimentation tank are separately arranged in the lower part and the upper part of the pool body, a folded plate support is fixed above the water inlet in the pool body, a plurality of aforementioned perforated folded plates are obliquely arranged on the folded plate support in the pool body, the folded plate top of the perforated folded plate faces upwards and the folded plate bottom faces downwards. The perforated folded plate top of the utility model is provided with the folded plate hole, and the sewage can flow upwards through the folded plate hole, which not only can increase the sedimentation area, but also can realize automatic sludge discharge, has the characteristics of simple structure, wide application range, high sedimentation efficiency and automatic sludge discharge.
Owner:KUNMING ENG & RES INST OF NONFERROUS METALLURGY

A new construction fence

The utility model discloses a novel construction fence, include: fence, water inlet, water outlet, first water pipe and spray mechanism, the fence is by frame body, base and baffle and is formed with the detachable structure of frame body insertion in base, water inlet and water outlet are symmetrically set up in the both sides of frame body, are respectively equipped with the sealing cap to realize the opening and closing control, the first water pipe is through frame body inside, and the water outlet end part sets up the flexible pipe, realizes the quick butt joint between adjacent fences. Spray mechanism is located at the top of fence, and the water source is connected through the first water pipe and is sprayed to reduce dust, the utility model discloses a telescopic pipe and realizes series type water supply system design, solves the traditional fence water pipe connection difficult, the problem of poor tightness.
Owner:XINJIANG JIANGSHENGSHUOHONG CONSTRUCTION ENGINEERING CO LTD

A sewer network unblocking and cleaning apparatus

ActiveCN224549328UReciprocating motionOutfall
The utility model relates to pipeline cleaning device technical field discloses a kind of sewer network dredging cleaning equipment, comprising: main body, collision component, silt softening spray head, reciprocating drive mechanism and mobile walking mechanism.Main body has installation space, and installation space is laid with main water supply pipeline;Main body is equipped with through-hole, and through-hole is connected installation space with external environment;Collision component includes collision cutter head and sliding rod;The cutter head end of sliding rod is connected to collision cutter head, and the connecting end of sliding rod is slidably arranged in through-hole;Silt softening spray head is installed at the front end surface of main body, and silt softening spray head is connected with main water supply pipeline;The water outlet of silt softening spray head is towards the front area of collision cutter head;Reciprocating drive mechanism drives the connecting end of sliding rod, for driving sliding rod reciprocating motion along its axis, to drive collision cutter head to reciprocate and hit pipe network silt;Mobile walking mechanism is used to drive main body to move.It improves the cleaning efficiency of hard silt in pipeline.
Owner:JINAN HEATING POWER ENG CO

Adjustable pulse water distributor

ActiveCN224299021UAvoid additional purchasesWide range of regulationTransportation and packagingMixersSiphonPipe water
The utility model relates to an adjustable pulse water distributor, it includes water tank, the water inlet pipe and the mud inlet pipe in water tank upper part, place in the water distribution main pipe of water tank, with the siphon of water distribution main pipe conduction, wherein the water distribution main pipe sets up in the water tank and presents the inverted U type structure, one end stretches out the water tank and is the water outlet of water distribution main pipe, one end is in the water tank and is the water inlet of water distribution main pipe, the siphon includes siphon main pipe, siphon auxiliary pipe and siphon destruction pipe, wherein the siphon main pipe with water distribution main pipe water inlet side conduction, siphon main pipe passes through siphon auxiliary pipe and siphon destruction pipe conduction, siphon auxiliary pipe still with water distribution main pipe top conduction, its characterized in with: water level adjusting spare is provided at water distribution main pipe water inlet.
Owner:SHANDONG ZHAOJIN MOTIAN +1

A clog-resistant patch-type irrigation device and drip irrigation tape

This invention discloses an anti-clogging patch-type irrigation device and drip irrigation tape, comprising an inlet section, a main body, and an outlet section. The inlet section contains an inlet chamber and a filter structure; the main body contains several parallel anti-clogging channels, within which multiple diverters are spaced along the length of each channel. These diverters divide the water flow into at least two branches, causing impact when the branches converge; the outlet section has an outlet chamber communicating with the anti-clogging channels, and the outlet chamber has an outlet and a sand discharge hole. This invention uses diverters to cause water flow splitting and impact, transforming impurities from sidewall deposition to central convergence and flushing. Combined with the dual-outlet structure of the outlet and sand discharge hole, it achieves excellent anti-clogging performance and self-cleaning function, making it suitable for integrated water and fertilizer irrigation in arid and semi-arid regions.
Owner:TARIM UNIV

A faucet with double water outlet mode

The utility model provides a kind of faucet of double water outlet mode, including outer main body, valve core, rotatablely connected first water outlet mechanism and second water outlet mechanism on outer main body, outer main body is provided with pivot sleeve, pivot sleeve has first passage inside;Valve core is arranged at pivot sleeve bottom end;Pivot sleeve and valve core are formed with the second passage for water flow through between outer main body;The water outlet of valve core is connected with the first water outlet passage and the second water outlet passage controlled by switching valve;The water outlet pipe of first water outlet mechanism is connected first water outlet passage by first passage;Second water outlet mechanism is connected second water outlet passage by second passage, and water flow is controlled by a switch valve and is disconnected.It is formed two waterways by the setting of concentric first passage and second passage, while realizing two modes water outlet, greatly reduce the outer dimension of main body, make overall appearance more concise.
Owner:GUANGDONG WEIXIANG SANITARY WARE

A cyclone type solid-liquid separator

The utility model discloses a cyclone type solid liquid separator, including cylindrical main part, with the cylindrical main part connects the conical bucket structure and sets up the flow guide structure in the cylindrical main part inside, the cylindrical main part is provided with the water inlet and the water outlet, the conical bucket structure bottom is provided with the blowdown, the flow guide structure includes the flow guide cylinder and the flow guide cone of flow guide cylinder connection, flow guide cylinder with the cylindrical main part top connection, be provided with the water outlet pipe that is connected with the water outlet in the cylindrical main part, the water outlet pipe is from the water outlet extends to the flow guide structure inside. The cyclone type solid liquid separator inside of this scheme has no mechanical operation mechanism, almost does not need manual maintenance when operating, avoids the problem of easy blockage, maintenance troublesome of filter equipment. Adopt cyclone centrifugal principle, form inside and outside double eddy current through flow guide structure, can effectively separate the suspended matter of big specific gravity in big flow circulating water, solves the problem that traditional sedimentation tank is poor to big flow circulating water separation effect.
Owner:CHANGZHOU KELIN ENVIRONMENTAL TECH CO LTD

A filter cartridge detachable faucet

ActiveCN224479337UWater leakageOutfall
The utility model discloses a faucet with detachable filter element, the bottom is equipped with the installation passageway for the filter element installation, and the installation passageway is communicated with the internal waterway of the bottom, and the installation passageway has an installation port leading to the outside of the bottom, and the user can quickly take and place the filter element through the installation port, realizes the replacement or maintenance work of the filter element. The installation port in the scheme is designed on the position of the bottom avoiding the water inlet and the water outlet, and does not interfere with the water inlet and the water outlet, compared with the traditional faucet, when replacing the filter element, the water outlet pipe assembly, the bottom and other components need to be disassembled, and the scheme only needs to open the installation port on the bottom, and the filter element can be taken and placed, and the design not only is simple and convenient to operate, but also can avoid the wear and tear problem at the water outlet caused by frequent disassembly and assembly of the water outlet pipe and other components, reduces the hidden danger such as water leakage and seepage.
Owner:XIAMEN IEBS HI TECH CO LTD

A flushing and washing device for a siltation cleaning method of a water conservancy pressure pipe

The application relates to the technical field of pipeline dredging, and particularly discloses a flushing and twisting type waterwork pressure measuring pipe silt blocking and cleaning device and a silt cleaning method, which comprises a fixed chassis, the top of the fixed chassis is provided with an annular opening structure, and movable universal wheels are arranged at the bottom of the fixed chassis; the top of the fixed chassis is fixedly connected with a supporting mechanism; a first fixed plate is fixedly connected with a booster delivery pump at the top; and a first connecting pipe is connected with the water outlet of the booster delivery pump. The silt cleaning mode combining cutting and twisting with high-pressure flushing is adopted, the silt cleaning efficiency is greatly improved, the connecting assembly is arranged, quick disassembly and sealing are realized, the pressure stability is guaranteed without loss, the pressure leakage is avoided to affect the silt cleaning efficiency, the supporting mechanism is arranged, accurate limiting and protection are provided for silt cleaning operation, and the operation stability and safety are improved.
Owner:JIANGXI ACAD OF WATER RESOURCES (JIANGXI PROVINCE DAM SAFETY MANAGEMENT CENT JIANGXI PROVINCE WATER RESOURCES MANAGEMENT CENT)

Water outlet device

A water outlet device comprises a water outlet body and a cover assembly. The water outlet body comprises a plurality of water outlet ports, and the plurality of water outlet ports are configured to discharge water. The cover assembly is detachably connected to the water outlet body to cover the plurality of water outlet ports, and the cover assembly comprises a water outlet cover and a fixed cover. The water outlet cover comprises a plurality of water outlet columns that are elastically deformable, and the plurality of water outlet columns are respectively connected to and in communication with the plurality of water outlet ports. The fixed cover is detachably connected to the water outlet body, and the water outlet cover is fixedly clamped between the fixed cover and the water outlet body.
Owner:XIAMEN LOTA INT CO LTD

Impact-proof flow guide device and rainwater flow guide method

ActiveCN117432043BSewer pipelinesStructural waterMarine engineering
This invention discloses an anti-impact diversion device, comprising a horizontal pipe, a horizontal fixed structure, a horizontal diversion cone, an elastic component, a vertical pipe, a vertical diversion cone, and a vertical fixed structure. The diameter of the horizontal pipe gradually decreases on the outlet side. The horizontal fixed structure is installed on the horizontal pipe. The horizontal diversion cone is placed on the outlet side of the horizontal pipe. The horizontal diversion cone is connected to the horizontal fixed structure via the elastic component, and the bottom diameter of the horizontal diversion cone is larger than the top diameter of the outlet of the horizontal pipe. The vertical pipe is placed on the horizontal pipe and connected to it. The vertical diversion cone is placed on the outlet side of the vertical pipe and connected to the vertical pipe via the vertical fixed structure, and the vertical diversion cone is immovable. The bottom diameter of the vertical diversion cone is smaller than the inner diameter of the vertical pipe. This invention also discloses a rainwater diversion method. This invention can effectively reduce the impact of drainage outlets on the water environment and aquatic ecology.
Owner:CHINA FIRST METALLURGICAL GROUP

Water tank assembly and cooling fan

The application relates to a water tank assembly and a cooling fan, and the water tank assembly comprises: a primary water tank, which comprises a water tank body and a water tank cover, the water tank body is provided with a water inlet and a water outlet which are oppositely arranged, and a water storage cavity which is communicated with the water inlet and the water outlet; and a secondary water tank which is arranged at one end of the primary water tank provided with the water outlet and is communicated with the water storage cavity through the water outlet; wherein the water tank cover is detachably sealed to the water inlet. The water tank assembly can form a closed environment which is isolated from the outside air in the primary water tank through the water tank cover, so that the speed of water flowing from the primary water tank into the secondary water tank can be effectively controlled, the water level in the secondary water tank can be kept stable, the working state of the water pump arranged in the secondary water tank can be kept stable, and finally the constant humidifying efficiency can be ensured.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI

A settlement-resistant culvert reinforcing structure in soft soil subgrade

This utility model discloses a culvert reinforcement structure for resisting settlement in soft soil subgrade, comprising: a culvert body and a load-bearing foundation. The load-bearing foundation is buried underground and filled with a waterproof material. The bottom area of ​​the load-bearing foundation is larger than its top area. The culvert body is located on top of the load-bearing foundation. The two ends of the culvert body are an inlet and an outlet, respectively. The inlet is equipped with a filter structure detachably connected to the culvert body, located below the inlet. The load-bearing foundation effectively disperses pressure, while the waterproof material enhances its waterproofing performance, preventing the underlying soil from softening due to moisture. This avoids significant settlement of the culvert body, ensuring its stability and significantly reducing the frequency of inspection and maintenance. By installing a filter structure at the inlet of the culvert body, foreign objects are effectively intercepted and concentrated below the inlet, ensuring stable operation of the culvert. This also significantly reduces the difficulty of cleaning operations and maintenance costs.
Owner:CHINA RAILWAY FIRST GRP SECOND ENG CO LTD

Mine water sump sludge cleaning and dewatering device

ActiveCN224493987UHydraulic cylinderSludge
This utility model belongs to the field of mine water tank sludge cleaning equipment, specifically relating to a mine water tank sludge cleaning and dewatering device. It includes a frame base, with a support seat connected to the top of the frame base via multiple vibration springs. A dewatering tank is fixedly connected to the top of the support seat, and a sludge outlet is provided at the bottom of the dewatering tank. A corresponding plug is slidably connected inside the support seat. A filter cylinder is connected to the edge of the dewatering tank corresponding to the sludge outlet, and a pressure plate is fitted to the filter cylinder. A pressure plate lifting drive assembly connects the pressure plate to the dewatering tank. Vibration motors are installed on both the left and right outer walls of the dewatering tank. A water inlet is connected to the upper end of the side wall of the dewatering tank, penetrating the side wall of the filter cylinder. An upper water outlet is provided at the lower end of the side wall of the dewatering tank. This utility model uses the up-and-down vibration of the dewatering tank to perform preliminary and rapid dewatering of the sludge, and then uses a hydraulic cylinder to drive the pressure plate to squeeze and dewater the sludge. The dewatering effect is good, effectively reducing the transportation cost of the sludge.
Owner:朱福平

Water collecting well circulating water dust falling device for karst tunnel engineering

The utility model discloses a water collecting well circulating water dust fall device for karst tunnel engineering, including water suction device, water collecting well and fixed together's mobile water tank and sewage collection tank, and water suction device, water collecting well and mobile water tank are communicated in proper order through water pipe, and water pump A is installed to the water inlet of water pipe, and the below and the top of water suction device are all installed with propeller A and drive motor, and the vertically installed telescopic stainless steel bellows of mobile water tank, one end of telescopic stainless steel bellows is located inside mobile water tank, and water pump B is installed to the port, and the other end is located outside mobile water tank, and the port is installed with the shower nozzle, and the periphery of shower nozzle is installed with the fender, and the adjacent fender side fixed connection, and the water inlet of sewage collection tank is located inside fender, and the water outlet of sewage collection tank and water collecting well water inlet are communicated through the backwater pipe. The utility model is used in karst tunnel engineering, not only solves the problem of water accumulation in the cave, but also improves the dust fall efficiency and improves the construction environment.
Owner:CCCC HEHAI ENG CO LTD +2

Intelligent shunt discharge system and method of combined system regulating reservoir

PendingCN122358762AControl systemOutfall
This invention relates to the field of municipal water supply and drainage engineering, and discloses an intelligent diversion and discharge system and method for combined sewer systems. The system includes a sewer body, a gate assembly, a monitoring assembly, and a control cabinet. The gate assembly includes a first electric gate located at the interception outlet and a second electric gate located at the direct discharge outlet. The PLC controller switches between interception mode, direct discharge mode, and emergency discharge mode based on a comparison of real-time liquid level with interception thresholds and emergency discharge thresholds. Furthermore, it can adjust the control strategy by incorporating rainfall intensity, sewage treatment plant influent hydraulic load, and water quality parameters to achieve sewage interception, direct discharge of low-pollution rainwater, and emergency pressure relief at high water levels.
Owner:XIAMEN UNIV OF TECH

Sand-water separation device

The application discloses a sand-water separation device, which comprises a sedimentation mechanism and a separation mechanism. The sedimentation mechanism comprises a water tank and a water inlet pipe. The separation mechanism comprises a water tank, a shaftless screw, a lining plate and a driving element. The water tank is arranged obliquely. The lower end of the water tank is communicated with the water outlet. The lower end surface of the upper end of the water tank is provided with a sand outlet. The upper end surface of the lining plate is gap-fitted with the shaftless screw. The upper end surface of the lining plate is provided with a plurality of arc-shaped grooves. Each of the arc-shaped grooves is rotationally provided with a roller. When the roller is blocked by sand particles, the shaftless screw applies a force to the sand particles during rotation, the sand particles apply a force to the roller, the roller rotates, the sand particles are removed, the frictional resistance of the shaftless screw during rotation is reduced, and the load and energy consumption of the driving element are reduced.
Owner:WUHAN TIANYUAN GROUP CO LTD

A multi-stage dust removal device and method for coal mine roadway impact resistance

This application relates to the technical field of dust removal, and in particular to a multi-stage dust removal device and method for coal mine roadways with impact resistance. The device includes an upward-opening water tank with an outlet on the side. A rotating shaft is rotatably mounted on the bottom of the water tank via a bearing. A cavity for air passage is formed inside the rotating shaft. A pushing mechanism is installed on the part of the rotating shaft located inside the water tank, and a pre-treatment mechanism that cooperates with the cavity is installed on the top of the rotating shaft. The pushing disc and the fan-shaped plate cooperate to push impurities floating on the water surface upward, which can effectively remove floating impurities on the water surface and prevent them from forming a barrier film on the water surface. This creates an unobstructed channel for gas diffusion. That is, when the water surface is kept clean and unobstructed, the gas can escape from the water surface more smoothly, the separation efficiency of impurities and gas is significantly improved, and thus the dust removal effect of the gas is greatly improved.
Owner:ZAOZHUANG MINING GRP GAOZHUANG COAL IND CO LTD

An unpowered orifice jet hydraulic mixing well

ActiveCN119981222BWater flowOutfall
The application discloses a non-powered orifice jet flow type hydraulic mixing well, which comprises an inner well body, an outer well body, an upper water inlet box culvert, a lower water inlet box culvert and a water outlet; the inner well body is located at the center position of the hydraulic mixing well, is not covered, and is provided with a jet flow hole group at the bottom; the outer well body is located at the outer periphery of the inner well body, is not covered, and forms an annular space with the inner well body; the upper water inlet box culvert is located above the lower water inlet box culvert and is communicated with the side edge of the inner well body, and is used for introducing water into the inner well body; the lower water inlet box culvert is located below the upper water inlet box culvert and is communicated with the inner well body through the jet flow hole group at the bottom of the inner well body; and the water outlet is located at the bottom of the outer side of the outer well body, and the mixed water flows out of the hydraulic mixing well through the water outlet. The hydraulic mixing well has reasonable structure, high engineering stability, saves energy and has strong practicability for actual engineering.
Owner:NANJING TECH UNIV

kayak

ActiveCN224466071UImpellerOutfall
The utility model discloses a karting boat relates to karting boat technical field. The karting boat includes the hull and the propeller, and the propeller includes the casing, the motor, the connecting rod, the impeller, the first flow guide and the second flow guide, and the motor drives the rotation of the impeller, and the water flow is inhaled from the casing side wall water inlet, and the water flow is formed after the acceleration of the impeller and is rotated jet. Rotating water flow first hits the first flow guide piece, and the first flow guide piece of radial distribution divides the water flow into multiple sub flow channels, and forces the water flow to discharge along the axial direction. Subsequently, the water flow enters the second flow guide area, and the taper structure makes the flow passage cross section area gradually reduce, and the water flow speed improves, and finally the water flow is sprayed from the water outlet in the approximate straight line form. Through the first flow guide, the preliminary rectification is realized, and the second flow guide carries out secondary despinning to the central vortex, and the synergistic effect is formed, and the second flow guide piece produces the reverse moment, converts the rotation energy into the additional thrust, and can improve the power of the propeller.
Owner:GUANGDONG YITONG NEW ENERGY TECH CO LTD