452 results about "Water trap" patented technology

The invention discloses an aeration type water treatment device for catalytic degradation of pollutants based on triboelectrification, and belongs to the field of sewage and wastewater treatment. The lower portion is of a hollow cone structure, and the upper portion is of a cylinder structure. Positive and negative friction particles with spherical structures are placed in the device, the built-in rotatable aeration device can rotate and uniformly distribute gas under the action of gas flow, a gas-liquid-solid three-phase vortex flow is formed in combination with the rotation action of the stirring paddle, the friction particles generate high-frequency collision to generate an electrification effect, and the gas-liquid-solid three-phase vortex flow is formed. Hydroxyl free radicals (. OH) and superoxide free radicals (. O2-) are generated, and organic pollutants are efficiently degraded. The externally added magnetic field can inhibit electron-hole recombination. The device can realize innocent treatment of toxic and harmful wastewater, and has better practical and economic values.

The utility model relates to the technical field of agricultural fertilizer production, and discloses an element quantitative adding mechanism for agricultural fertilizer production, which comprises a tank body, a driving assembly arranged in the tank body, a limiting assembly arranged in the tank body, a conveying assembly arranged on the outer wall of the tank body, and a stirring assembly arranged in the tank body, a first annular water pipe is fixedly connected to the interior of the tank body, first nozzles arranged at 45 degrees are fixedly connected to the outer wall of the first annular water pipe, a water inlet pipe is fixedly connected to the outer wall of the first annular water pipe, and a second annular water pipe is fixedly connected to the interior of the tank body. According to the utility model, the nozzle II sprays out to form a clockwise vortex towards the inside of the gathering barrel, and the rotating shaft I drives the fertilizer and water to be fully mixed in the gathering barrel through the stirring blades, so that the fertilizer is prevented from being uniformly mixed and diffused, the effect of improving the mixing efficiency is achieved, and the problems that the surrounding fertilizer cannot be timely mixed and stirred and the stirring time needs to be prolonged are solved; the processing efficiency of agricultural fertilizer production is improved.

The technical scheme of the utility model discloses a land-based canvas pool litopenaeus vannamei recirculating aquaculture system which comprises an aquaculture pool, and the edge of the bottom of the aquaculture pool inclines towards the center so as to enable aquaculture water and impurities to converge towards the center to a fish closestool. The settling pond is connected with an outlet of the fish closestool through a drainage pipe, and the fluidized bed is connected with the settling pond through a water guide pipe arranged at the water outlet channel; and the microfiltration part is connected with the fluidized bed and the culture pond through a water conduit and a water return pipe respectively. The bottom of the culture pond is inclined, water is drained from the center of the culture pond and enters the culture pond tangentially, so that vortexes are formed in the culture pond, and residual feed, excrement and the like are quickly concentrated towards the water outlet in the center of the bottom of the culture pond under the action of tangential force of water flow. Through a plurality of water inlet pipes and water outlet pipes, the effect of water quality circulation of the culture pond, the sedimentation pond, the fluidized bed biological filter and the rotary drum type micro-filter is achieved, and the problems that suspended solids and ammonia nitrogen are prone to being generated in a traditional prawn culture technology and the nitrite concentration is continuously increased are solved.

The utility model relates to the technical field of sanitary ware, in particular to a trap squatting pan. The trap squatting pan comprises a panel and a container bag, and the top of the panel is connected with the top of the container bag. A sewage inlet and a sewage discharge pipeline are formed in the container bag, the sewage inlet is communicated with the sewage discharge pipeline, and a trap is formed on the sewage discharge pipeline, so that a water sealing surface is formed at the sewage inlet. A first slope and a second slope are formed on one side, facing the panel, of the container bag, the first end of the first slope is connected with the wall face of the sewage inlet, the first end of the second slope is connected with the second end of the first slope, and the inclination angle of the first slope is larger than that of the second slope. According to the trap squatting pan provided by the utility model, the water seal area of the water seal surface at a specific height can be effectively increased, so that the odor isolation effect of the water seal surface of the squatting pan is enhanced, the pollution discharge efficiency is improved, and the user experience feeling is effectively improved.

The invention belongs to the technical field of water area rescue practical training, and provides a torrent water channel and urban inland inundation combined practical training system which comprises a torrent water pump room, a water distribution pool, a training water channel, a training pool and an urban inland inundation training area. The training water channel communicates with the water distribution pool and the training pool. The urban inland inundation training area is communicated with the water distribution pool and the training pool. According to the system, a torrent water pump house, a water distribution pool, a training water channel, a training water pool and an urban inland inundation training area are integrated into an organic whole, and a parallel water channel is designed, so that a single system can provide two differentiated training environments of torrent rescue training and urban inland inundation rescue training at the same time. Flow regime areas such as a boiling line, a rolling flow, a covering flow, a smile flow, a rugosa flow and a vortex flow are arranged in the training water channel, and the most typical and dangerous water flow form in a natural river is systematically and completely reproduced. Therefore, learning and training personnel can learn and master skills of identifying and coping with various complex water flow forms in a continuous training water channel.

According to the semi-submersible floating platform based on the eddy current damping effect, the multiple buoyancy units and the multiple sets of supporting mechanisms are sequentially and alternately arranged to form an annular space frame structure, and the whole platform has good stability and rigidity. In each buoyancy unit, a heaving plate is mounted at the bottom of the buoy, meanwhile, dampers are innovatively arranged on the edges of the heaving plates, reserved spaces capable of exciting fluid vortexes are formed among the dampers, the buoys and the heaving plates, upwelling water flow of the heaving plates is actively guided through a unique structure, and the effect of generating fluid vortexes is achieved. And a reserved space is utilized to forcibly convert the eddy current into a high-strength and ordered eddy current field. Through the arrangement, the semi-submersible floating platform not only obviously enhances the eddy current dissipation effect and the additional mass effect of the platform to multiply the heaving damping performance, but also forms a synergistic effect with the main heaving plate, so that the vertical movement stability, the storm resistance and the operation safety of the platform in severe sea conditions are effectively improved.

An immersion structure (e.g., hot tub, spa, swim spa, pool, showerhead, whirlpool bathtub, and whirlpool bath) has a water treatment system that includes a nano bubble generator for purifying the water. The water treatment system can further include a gas generator that works in conjunction with the nano bubble generator to create a composition of liquid containing nano bubbles. The nano bubbles circulate in the immersion structure thereby cleaning the plumbing system and water. The water treatment system can be located within a cabinet housing the immersion structure. The system can be controlled (e.g., water treatment, operational parameters, cleaning boost, part replacement, etc.) by a user via a smart app on a client device.

The invention relates to the technical field of water treatment, in particular to a grid for a flocculation basin, a flocculation module and an assembled flocculation basin. The grid for the flocculation basin comprises a body, a plurality of rotational flow fins and a plurality of first arc-shaped fins, a plurality of meshes are formed in the body, the meshes are arranged in an array mode, and each mesh pair corresponds to a plurality of rotational flow fins and a plurality of first arc-shaped fins; wherein the rotational flow fins corresponding to the meshes are connected to the upper side of the body and arranged around the edges of the meshes at intervals, and the rotational flow fins bend and extend from the edges of the meshes to the areas outside the meshes; the first arc-shaped fins corresponding to the meshes are connected to the lower side of the body and arranged around the edges of the meshes at intervals. By adopting the grid for the flocculation basin, water flow can form streaming after passing through the fins, and a vortex area is formed behind the fins, so that a proper hydraulic condition is provided for flocculation, the effective collision frequency of particles is increased, and the flocculation effect is optimized.

Disclosed in the present invention are a hydraulic launching device for an underwater vehicle, and an operating method therefor. The hydraulic launching device comprises an offshore platform, a platform stabilizing mechanism, a deep-sea submersible launching tube, an automatic release clamp and a vortex forming mechanism, wherein the offshore platform comprises a platform deck, a lifting assembly and a lower float assembly, the lifting assembly being mounted on the upper surface of the platform deck, a through hole being provided in the middle of the platform deck, the deep-sea submersible launching tube being arranged downwards from the through hole and connected to the platform deck, and the lower float assembly being mounted at the bottom of the platform deck and surrounding the deep-sea submersible launching tube; the automatic release clamp is connected to the lifting assembly, cooperates with the deep-sea submersible launching tube, and is configured to clamp a deep-sea submersible; and the platform stabilizing mechanism comprises a plurality of platform float stabilizers, and the platform float stabilizers are mounted spaced apart from each other on the upper surface of the platform deck in a circumferential direction. The present invention can improve the diving efficiency of a deep-sea submersible, and can reduce the combined interference from unknown wind, waves and currents when the deep-sea submersible runs in two distinct environmental mediums.

The utility model discloses a positive pressure air-assisted feeder capable of preventing material return, which comprises a material box and a feeding mechanism which are arranged on an embankment, a conveying pipeline is connected with a scattering mechanism in a pond, and the feeding mechanism comprises an electric appliance control box which is in signal connection with a high-pressure vortex fan, a blanking airlock and a driving motor of the scattering mechanism. A through hole in the upper surface of the conveying pipeline is communicated with a discharging port of the discharging air lock, and an air outlet of the high-pressure vortex fan is connected with a check valve device and then connected with a starting port of the conveying pipeline. The check valve device is additionally arranged on the front side of the fan, a motor forward rotation valve is opened to blow air smoothly, a motor reverse rotation valve is closed, feed cannot be sucked back into the fan, and the situation that a motor is burnt out due to the fact that a motor wire is connected reversely and reversely to suck air is avoided.

The utility model relates to a shower head device and an aromatherapy shower head connector thereof. The aromatherapy shower head connector comprises a shell, a cover body, a base and a vortex ball, a vortex diffusion cavity is formed in the shell, a first water conveying opening is formed in the first end of the shell, a cavity opening is formed in the second end of the shell, the cover body is connected with the shell and seals the cavity opening, and a second water conveying opening is formed in the end, away from the shell, of the cover body; the vortex ball is arranged in the vortex diffusion cavity and provided with a water diversion channel, and the water diversion channel penetrates from one end of the vortex ball to the other end of the vortex ball. After entering the vortex diffusion cavity, water flow enters the containing cavity through the water diversion channel, the aromatherapy block is released, and after being released, the aromatherapy block enters the vortex diffusion cavity along with the water flow and then is sprayed on the shower head along with the water flow. When the water flow flows in the vortex diffusion cavity, the ball body located in the vortex diffusion cavity is driven to rotate, and when the ball body rotates, the vortex grooves in the surface of the ball body play a role in guiding the water flow, so that the water flow is diffused in different directions in the vortex diffusion cavity, and aromatherapy diffusion is more sufficient.

The invention discloses a low-temperature storage tank provided with a pump well structure for reducing the liquid level of a dead zone and an operation method of the low-temperature storage tank. The storage tank comprises a storage tank body. At least one first pump well structure is arranged in the storage tank body, each first pump well structure comprises a first pump well pipe, a first immersed pump capable of being completely immersed below the liquid level is arranged at the bottom end of the interior of each first pump well pipe, and a negative pressure protection cover is arranged at an inlet of each first pump well pipe. The negative pressure protection cover is used for establishing a negative pressure cavity to reduce the liquid level of a dead zone and avoid vortex bubbles when the first immersed pump discharges liquid, and the top of the negative pressure protection cover can be communicated with the gas phase space in an openable and closable manner; the storage tank body is communicated with an air pressure adjusting device capable of adjusting the operation pressure of the gas phase space. The unique negative pressure protection cover is arranged, a negative pressure cavity is formed in the outer side of the first immersed pump, and vortexes and bubbles are prevented from being sucked in; the storage tank body is communicated with the air pressure adjusting device, the operation range of operation pressure in the gas phase space is expanded, the dead zone liquid level height of the storage tank is reduced, the effective volume of the storage tank is increased, and tank cleaning residual liquid is extracted to the maximum extent.

The invention relates to the technical field of water treatment, in particular to a water treatment device for water conservancy ecological management. Green plant planting grooves are formed in the green plant floating island; a plurality of fixed vertical frames are annularly and fixedly assembled at the bottom of the green plant floating island at equal intervals, a treatment suction hopper is integrally fixed to the bottom ends of the fixed vertical frames, and a water conservancy treatment structure for actively pulling and collecting floating garbage on the water surface on the periphery of the green plant floating island is arranged below the treatment suction hopper. The green plant floating island has the effect of efficiently cleaning water surface garbage, the water conservancy treatment structure can pull water flow on the water surface to form water flow vortexes, then the water surface garbage floating around the green plant floating island is effectively collected and cleaned, the environmental sanitation condition of a water area is improved, the water surface is kept clean, and the overall attractiveness of the water area is improved.

The invention relates to the technical field of offshore wind power tower drum protection, in particular to an offshore wind power tower drum with an anti-scour structure, which comprises a foundation pier and an anti-scour assembly, a base frame is mounted on the foundation pier, the base frame is composed of at least four stand columns, a pressure relief groove with an upward opening is prefabricated in the foundation pier, and the anti-scour assembly is mounted in the pressure relief groove. The stand column surrounds the periphery of the pressure relief groove, the end, connected to the foundation pier, of the water inlet pipe and the end, connected to the foundation pier, of the water outlet pipe are both communicated with the pressure relief groove, the anti-scour assembly comprises a hole type interference plate arranged at the top of the pressure relief groove and a floating piece arranged in the pressure relief groove, and water jetting is conducted with the pressure relief groove as a starting point. When the water flow is jetted upwards, the water flow penetrates through the hole type interference plate in the vertical direction to be jetted between the range of the stand column and the top face of the foundation pier, vortexes are most likely to be generated in the area, vortexes are more likely to be generated in the area when the water flow is torrential, and after vertical upward water jet interference, the vortex generation possibility is greatly reduced.

The application discloses a stopper rod for inhibiting confluence vortex and a method thereof, and belongs to the technical field of water gap flow control of continuous casting tundish in metallurgy technology. The stopper rod comprises a stopper rod shell, a stopper rod core is embedded in the stopper rod shell, a magnetic field generating device is arranged on the outer circumferential wall of the stopper rod core, and the magnetic field generating device is used for exciting a magnetic field directly above the water gap. The magnetic field generating device is an electromagnetic coil or a rotating magnetic field stirrer. The application can effectively inhibit the generation of confluence vortex at the end of pouring by adding an electromagnetic field to make the molten steel generate induced current. Meanwhile, the magnetic field excited by the application is formed directly above the water gap and has the maximum strength at the vortex forming position, so that the inhibition effect of the magnetic field on the confluence vortex is more direct, the inhibition effect is obvious, and energy waste is avoided.

The present application relates to sewage treatment technical field, especially to a kind of hydrate method sewage treatment device and processing method.Its technical scheme includes: water turbine mechanism, including folding cylinder, spiral groove, sewage pipe and carbon dioxide pipe, the inside of folding cylinder is opened spiral groove, the sewage pipe is through folding cylinder, the end of sewage pipe is adopted spiral shape, the sewage pipe is attached to the inner wall of folding cylinder and is embedded at spiral groove, the carbon dioxide pipe is equipped with multiple and is annularly distributed around stirring paddle.The present application utilizes the speed of sewage into folding cylinder, the end spiral shape structure of sewage pipe and spiral groove, so that sewage is spirally rotated along the inner wall of spiral groove, subsequent folding cylinder is added with sewage, and the sewage added subsequently will directly form vortex in folding cylinder, reduce the difference between sewage vortex rotation speed and stirring paddle speed, avoid that the difference between rotation speed is too large to cause that stirring paddle is hit to sewage to make that carbon dioxide dissolved in sewage overflow from sewage.

The closestool water replenishing system comprises a water inlet device, and the water inlet device is provided with a water inlet channel and a water outlet channel and can control whether the water inlet channel is communicated with the water outlet channel or not; the switching device is provided with a water inlet, a first water outlet and a second water outlet and can control the water inlet to be communicated with the first water outlet and the second water outlet in a switching manner; the first water outlet communicates with a water seal of the closestool; the second water outlet communicates with a water tank of the closestool; the water outlet channel is communicated with the water inlet, and when the water outlet channel is communicated with the water inlet channel, the switching device controls the water inlet to be communicated with the first water outlet and the second water outlet in sequence so as to supplement water to the closestool water seal and the water tank in sequence. The water replenishing flow of the closestool water seal can be remarkably increased, the closestool water seal can be rapidly recovered, excrement is prevented from directly making contact with the ceramic wall in the recovery period of the water seal, and therefore the excrement adhesion probability is reduced, it is guaranteed that the closestool trap is effectively sealed all the time, and peculiar smell is prevented from overflowing.

1. Name of the designed product: Jian Shui (vortex). 2. Use of the designed product: for placing tea dregs and waste tea water. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: front view.

This utility model relates to the field of civil defense engineering technology, specifically an explosion-proof floor drain structure for civil defense projects, comprising an explosion-proof shell. The explosion-proof shell includes a top cover, a vortex drainage and filtration mechanism, and a bottom annular drainage cylinder, all coaxially nested together. The explosion-proof shell is composed of a stainless steel substrate and a rubber buffer layer. This explosion-proof floor drain adopts a modular design, with the top cover, vortex filtration mechanism, and bottom drainage cylinder coaxially nested, integrating drainage, filtration, and explosion-proof functions. The top cover features multiple drainage channels and an annular handle, ensuring even drainage and convenient assembly / disassembly. The vortex guide plate guides the water flow, improving efficiency and blocking large particles. Multi-stage filter holes intercept impurities of different sizes, preventing clogging. The explosion-proof shell, made of a stainless steel and rubber composite material, enhances impact resistance and corrosion resistance, making it suitable for civil defense projects.

The utility model provides a protection device for improving local scouring of a pier, which is suitable for the pier and comprises a first protection part and a second protection part, the first protection part is located on the upstream face of the bridge pier to force water flow to be divided towards the two sides of the bridge pier, and the divided water flow flows downstream along the second protection part located on the downstream face to prevent downward jet flow and weaken horseshoe-shaped vortexes and tail vortexes. A flow field in the incident flow direction of the pier scours the first protection part located on the upstream face, and the first protection part on the upstream face changes the form of the upstream face of the pier so as to prevent scouring energy of downward jet flow to a pier foundation, inhibit generation of reverse pressure gradient, weaken energy of horseshoe vortexes and force water flow to be distributed to the two sides of the pier. The divided water flow flows to the downstream along the second protection part located on the downstream face, and the second protection part on the downstream face can restrain boundary layer separation, reduce the turbulent flow intensity of the tail of the pier, weaken tail vortex erosion and achieve the protection effect.

The invention relates to the technical field of underground protection, in particular to an underground equipment protection treatment device and method. According to the technical scheme, the device comprises a guide pipe fixedly installed below a water pipe, a sediment box is fixedly installed at the bottom of the guide pipe, the bottom of the sediment box is communicated with a blow-off pipe, the guide pipe is of a ladder block structure, and the inner wall of the guide pipe is hollow. When the end part of the water pipe is closed, water in the water pipe is in a standing state, impurities are precipitated according to a natural precipitation method, the impurities are guided into the precipitation box by utilizing the inclined surface of the guide pipe, and the impurities in the precipitation box are discharged from the blow-off pipe by opening the blow-off valve, so that the water quality is ensured, and the impurities are prevented from damaging a trolley filter element along the water pipe; when the trolley is punched, metal parts of the trolley are rusted, the punching quality and the punching efficiency are influenced, water flows through the vortex triggering piece to form spiral flow, the water is filtered through the filter screen, and meanwhile, due to the fact that shearing force is formed by the spiral flow of the water, impurities in holes of the filter screen are brought out.

The utility model discloses a two-inlet three-outlet water segregator, which relates to the technical field of water segregators and comprises a main pipe body, one end of the main pipe body is connected with two water inlet pipes, the water outlet end of the main pipe body is connected with three water outlet pipes, and a main pipe cavity is arranged in the main pipe body. The water inlet pipe is of a gradually-shrinking structure, the diameter of the inlet end of the water inlet pipe is larger than that of the end connected with the main pipe body, and the gradually-shrinking angle is 15 degrees. The water inlet pipe is of a gradually-shrinking structure, the gradually-shrinking angle is 15 degrees, the diameter of the inlet end is larger than that of the end connected with the main pipe body, according to the fluid dynamics principle, water flow can be effectively guided to stably enter a flow channel in an accelerated mode, local head loss at the inlet is reduced, and the uniformity of the water flow entering the main pipe body is improved. The water outlet pipe is of a gradually-expanding structure from the end connected with the main pipe body to the other end, the gradually-expanding angle is 10 degrees, water flow can be gradually decelerated when flowing out, kinetic energy loss at an outlet is reduced, and impact of the water flow on a downstream pipeline is reduced.

The utility model relates to the field of flow detection equipment, in particular to a vortex shedding flowmeter which comprises a pipe body and a vortex generating body, a flow channel is transversely arranged in the pipe body, a first step is arranged on the upper side of the pipe body, a first connecting hole and a first inserting hole matched with the vortex generating body are formed in the first step, and the first inserting hole is vertically arranged. The lower end of the first insertion hole communicates with the flow channel. A connecting part is arranged at the upper end of the vortex generating body, and a second connecting hole is formed in the connecting part; the vortex generating body is inserted into the first inserting hole and extends downwards into the flow channel, the connecting part abuts against the upper side of the first step, and the first connecting hole and the second connecting hole are fixedly connected through a screw. According to the vortex shedding flowmeter, the first step is arranged on the upper side of the pipe body, the vortex generating body is inserted into the first inserting hole and fixedly connected with the first step through the screw, a through hole does not need to be formed in the lower side of the pipe body, water flow is prevented from overflowing from the through hole in the lower side, and the sealing performance of the vortex shedding flowmeter is improved.

This invention provides a pressure pipeline upgrade system that improves the power generation efficiency of hydropower stations by using a high-pressure air compressor to inject air and mix it with water. The system includes a pressure tank, an air compressor, a high-pressure connecting air pipe, a one-way check valve, a pressure equalization chamber, a pressure pipeline, a vortex guide pipe, a high-pressure jet nozzle, and a hydro-generator. The core components of this invention are: the pressure equalization chamber, the pressure pipeline, the vortex guide pipe, and the high-pressure jet nozzle. The vortex pipe and the pressure pipeline are an integral design; the vortex pipe is attached to the inner wall of the pressure pipeline, guiding the water flow in a vortex shape to accelerate and impact the hydro-generator. The vortex pipe is designed as a hollow structure with evenly distributed spiral air holes. The high-pressure air output from the air compressor is injected into the water flow spirally through these air holes along the path of the vortex pipe, thoroughly mixing with the water. Simultaneously, influenced by the water level difference in the upstream pressure pool, the water flow naturally forms a strong vortex effect, further enhancing the rotational power of the water flow. This achieves a dual pressurization effect from the high-pressure mixture of water and air, causing the water pressure and velocity to increase several times before impacting the turbine generator blades and driving them to generate electricity, thereby improving the power generation efficiency of the hydropower station. This invention has advantages such as simple structure, convenient installation, easy maintenance, water conservation, and environmental friendliness, and can also bring good social and economic benefits.

The utility model relates to an efficient water flow stabilizing type siphon roof drain capable of automatically eliminating vortexes, which belongs to the technical field of siphon roof drains and comprises a rectifying device, and a water flow stabilizing device for improving the vortex eliminating effect is fixedly mounted at the top of the rectifying device. According to the efficient and stable water flow type siphon roof drain capable of automatically eliminating the vortex, the water flow stabilizing device is arranged at the top of the rectifying device, and according to the characteristic that water flow in the northern hemisphere easily forms a water flow vortex in the anticlockwise direction, eight streamline blades which are concaved in the anticlockwise direction are arranged between the outer mounting ring and the inner mounting ring; compared with an original ordinary siphon roof drain, the siphon roof drain has the advantages that the vortex eliminating effect is greatly improved, and the problems that a common siphon roof drain is limited by the height of a water inlet, blades and the like, when rainwater passes through, large vortexes are generated, the gas-water separation effect is poor, and stability is poor are solved. And the drainage effect is influenced by the problems.

The utility model relates to the technical field of mixing valves, and discloses a hemispherical electric dewatering and electric desalting mixing valve, which solves the problem that crude oil, washing water and a demulsifier cannot be fully mixed at present, and comprises a valve body, a water outlet pipe and a water inlet pipe are respectively arranged on two sides of the valve body, and flanges are fixedly mounted on the outer sides of the water outlet pipe and the water inlet pipe. A limiting mechanism is arranged at the top of the valve body, a valve element is rotationally connected into the valve body, a valve rod is rotationally connected into the valve body, the valve element is fixedly connected to the outer side of the valve rod in a sleeving mode, the top end of the valve rod extends to the outer side of the valve body and is fixedly connected with a hand wheel, and the valve element is in a hemispherical surface shape. According to the utility model, a certain gap is formed between the valve core and the inner wall of the valve body, so that when crude oil, washing water and a demulsifier flow through the valve body, a backflow area, a countercurrent area and a vortex area can be formed, a strong mixing effect is generated on the crude oil, the washing water and the demulsifier, full mixing is ensured, and salt in the crude oil can be fully dissolved in the washing water.

The water pump comprises a motor, a centrifugal impeller and convex ribs, the motor comprises a stator and a rotor, the rotor is rotatably arranged in the stator, the rotor is provided with a rotating shaft part and the centrifugal impeller, the centrifugal impeller is arranged on the rotating shaft part and suitable for being driven by the rotor to rotate, and the convex ribs are arranged on the rotating shaft part and located between the centrifugal impeller and the rotor. By arranging the convex ribs on the rotating shaft part, when the rotor rotates, the rotor drives the centrifugal impeller to rotate and also drives the convex ribs to rotate, and the rotation of the convex ribs drives water flow to rotate around the rotating shaft part, so that vortexes are formed between the centrifugal impeller and the rotor, and the vortexes enable silt in the water flow to be retained; a large amount of silt is prevented from entering a gap between the rotor and the stator to clamp the rotor, and normal rotation of the rotor is ensured.

A manual water vacuum cleaner for cleaning a whirlpool spa bath or similar, comprising a suction hose with an end receiving a quick-connect adapter for coupling a corner vacuum nozzle or seat vacuum nozzle and the opposite end with a spigot coupling for assembling the accordion coupling, which can be coupled to the drainage drain of water evacuation of the hydromassage spa bath. The accordion coupling in the drainage drain, once open and suction between the diametrical narrowing provided between the drainage drain and hose configures the Venturi effect to suck up dirt accumulated on the sides, seats and bottom of the hydromassage spa bath.

The invention relates to the field of trap dredging, in particular to a trap structure convenient to dredge. The trap structure convenient to dredge comprises a pipeline structure, a cleaning structure is installed on the pipeline structure, the pipeline structure further comprises a bent pipe, the two ends of the bent pipe are not closed, a water outlet pipe is fixedly connected to one section of the bent pipe in an inserted mode, and an external pipe is fixedly welded to the position, close to the other end, of the circumferential outer wall of the bent pipe. A water inlet pipe is inserted and fixed at the other end of the external pipe; the cleaning structure is installed at the other end of the bent pipe and is composed of a supercharged dredging assembly, an auxiliary sealing assembly and an auxiliary positioning assembly. According to the trap structure convenient to dredge, the cleaning structure is installed at one end of the bent pipe, the bent portion of the bent pipe can be cleaned in a targeted mode in a pressurization mode, dredging of a pipeline is better facilitated, the external connecting pipe connected with the water inlet pipe can be closed in the pressurization process, and pressurization cleaning of the interior of the bent pipe is better facilitated.