277 results about "Gravity flow" patented technology

The invention provides a foundation pit water gushing iron ore grading thixotropic blockage reduction method which comprises the steps that iron ore tailings are crushed and screened into multi-stage particle size particles, and a customized mold is subjected to 3D printing based on foundation pit scanning data; paving particles in a mold layer by layer, doping iron powder, and cementing and curing cement paste to form a prefabricated body; the prefabricated body is installed to a water gushing area, the slurry viscosity is increased through a grading contact network, a weak gravitational flow state is triggered to be transiently changed to an anti-scouring state, and water flow speed reduction is achieved; alternating field induction micro-vibration is synchronously started during lateral grouting, and grout permeation and bubble discharge are driven; after solidification, the guide core body is pulled away, and remaining pore channels are self-compacted by a grading system to form an anti-seepage structure. The method has the advantages that the anti-scouring performance is enhanced; particle-slurry-foundation pit curved surface triple self-adaptive combination is carried out; the engineering cost is reduced.

The invention provides a deep water gravity flow gas field reservoir water saturation earthquake prediction method based on TDCN-TransNet. The method comprises the following specific steps: a TDCN-TransNet network architecture comprises an input processing layer, a dual TWT position code, a TDCN module, a Transformer encoder layer and an output layer; mapping the features to a hidden dimension in an input processing layer through linear full connection; a dynamic Gaussian convolution kernel and a CBAM attention mechanism are embedded in the TDCN, and modeling of a nonlinear relation between an elastic parameter and saturation is enhanced through multi-scale time sequence feature extraction; tCBlock is integrated on a Transform encoder layer, and long-distance sequence dependence is captured by using attention pooling and an SE channel excitation mechanism; a TWT position code is introduced between the TDCN and the Transform, and sequence position information is enhanced; constructing a combined loss function of a mean square error and L2 regularization; finally, training and reasoning are conducted based on the model, and high-precision water saturation prediction is achieved. The method provided by the invention has high generalization and accuracy, and shows excellent prediction performance in a complex geological environment of a deepwater gravity flow reservoir.

The utility model discloses a road slope earth shoulder drainage system which comprises a water outlet piece, an earth shoulder vertical curb water blocking belt, a transverse drainage pipe assembly, a longitudinal drainage pipe and a base. The water outlet piece and the earth shoulder vertical curb water blocking belt are arranged on the edge of a highway pavement and used for collecting water in a centralized mode. The base is embedded in a side slope; the longitudinal drainage pipe is arranged on the base, and the longitudinal drainage pipe is longitudinally arranged in the advancing direction of a road; one end of the transverse drainage pipe assembly is connected with the water outlet piece and the earth shoulder vertical curb water blocking belt, and the other end of the transverse drainage pipe assembly is connected with the longitudinal drainage pipe. The longitudinal drainage pipe is provided with a plurality of sections, and the plurality of sections of the longitudinal drainage pipe are communicated with one another and finally communicated to a rain sewage outlet point. The drainage ditch is suitable for the conditions that drainage of a highway embankment drainage ditch arranged by utilizing gravity flow is unsmooth, natural water systems on the ground surface are deficient or land use is limited and the like; according to the utility model, fewer water outlet points of a natural water system can be reasonably utilized to form a complete drainage system.

The utility model relates to an open type sewage purification circulating device. The device comprises a sewage purification body (5) which is a container, the open type sewage purification circulating device comprises a plant purification layer (1), a water inlet pipe (8), a water outlet pipe (2), a circulating water tank A (3), a U-shaped groove (4), a circulating water tank B (9), a circulating water tank C (7), a water lifting pipe (11), a sewer pipe (12) and the like. The device used in the utility model is simple and easy to obtain, only needs to increase the circulating water body height (slightly higher than the duckweed purification device) in the operation process, the other processes are all realized by water body self-flow, the construction and operation cost is low, the management and maintenance are easy, the device is not limited by plant varieties, and the application of the plant purification device in water environment treatment is promoted.

The invention discloses a new-type barite deposit mineralization mode construction method based on a same sedimentary fault. The method belongs to the field of geological exploration and mineral resource prediction, and comprises the following steps: analyzing the earth crust cracking activity history of an earthquake-Hangjian broken basin, and recovering a basin'checkerboard 'structure prototype; by means of field geological survey and research, drilling engineering, geophysics, remote sensing geological big data and the like, north-east-east-direction and north-west-direction co-sedimentary fault networks are identified and modeled, and a deep metallogenic fluid rising and jet flow channel is determined; the metallogenic process is concluded into a hydrothermal jet flow stage and an underwater gravity flow deposition stage, deep fluid is revealed to rise, jet flow and precipitate along a fault, and an ore-rich zone of a composite seabed fan body group is formed; and a geochemical prospecting prediction model combining trace element and sulfur isotope characteristics is established. The method systematically clarifies a coupling mechanism of ore control of the same sedimentary fault, ore-forming fluid migration and gravity flow deposition, and provides a theoretical basis and a technical means for prospecting prediction of the barite deposit in the Hendan-Hangjian fault basin.

The invention discloses a rainstorm runoff flow limiting and overflowing impact resistance device and method, and belongs to the technical field of runoff non-point source pollution abatement. The device comprises a flow dividing well body and further comprises a water inlet, a flow limiting opening and an overflowing opening; by adopting a double-stage shunting mode of initial-stage interception and middle-later-stage overflow and combining the design of horizontal symmetrical distribution of the water inlet and the flow limiting port and vertical distribution of the overflow port and the water inlet, water flow can be guided to form a stable transverse flowing path, so that high-pollution rainwater is intercepted in the initial stage of rainfall by virtue of a gravity flow principle, and high-pollution rainwater is intercepted in the middle-later stage of rainfall. Clean rainwater is rapidly discharged through the flow limiting opening, so that the short-time heavy rainfall condition can be effectively handled, the flow dividing stability in different rainfall stages can be guaranteed, the impact load resistance of the device is greatly improved, the system overload risk caused by sudden flow change is reduced, and it is ensured that the efficient pollution treatment effect is always kept in long-term operation.

A filtration system comprising activated charcoal and alternating filtering and regenerating modes for sustainable filtering of a spirit distillate. The filtering mode is a reverse-gravity filtration method wherein distillate is pumped upward from a bottom end of a filter chamber to a top end of the filter chamber and wherein the filter chamber comprises activated charcoal of various pore sizes to capture impurities from the distillate. The cleaning mode is a gravity-flow steam-regeneration method wherein steam flows downward from the top end of the filter chamber to the bottom end of the filter chamber regenerating the activated charcoal. The system alternates between the reverse-gravity filtration method and gravity-flow steam regeneration method through the use of a series of input and output ball valves at the top end of the filter chamber and a series of input and output ball valves at the bottom end of the filter chamber.

The invention discloses an aluminum solution holding furnace degassing device, and relates to the technical field of aluminum solution furnace vacuum degassing, the aluminum solution holding furnace degassing device comprises a holding furnace shell, the top of the holding furnace shell is rotatably connected with a holding furnace cover, an inner cavity of the holding furnace shell is provided with a vacuum exhaust assembly, and the vacuum exhaust assembly comprises a suction pump fixedly connected to the top of the holding furnace cover; first ventilation pipes are installed on the two sides of the suction pump, a gas collection box is fixedly connected to the side wall of the heat preservation furnace shell, a cylinder is fixedly connected to the bottom of an inner cavity of the heat preservation furnace shell, and T-shaped rods are symmetrically and fixedly connected to the top of a circular inner container. Meanwhile, in the flowing process of the molten aluminum, residual gas such as hydrogen naturally floats to the surface due to the density difference, the solubility is further reduced by means of the vacuum environment, the degassing efficiency is improved, meanwhile, natural convection formed by gravity flowing promotes uniform distribution of the temperature of the molten aluminum, and the local overheating or solidification risk is reduced.

The utility model discloses a vertical synchronous lifting type gravity flow energy storage system, and relates to the technical field of gravity energy storage. Comprising two vertical lifting units, an energy storage device, a driving device and a power generation device, the driving device is connected with the vertical lifting units so as to drive the carrying cables of the two vertical lifting units to operate synchronously, then all the carrying devices are driven to operate, and therefore the multiple energy storage devices are continuously and vertically lifted so that electric energy can be converted into gravitational potential energy to be stored. The multiple carrying devices loaded with the energy storage devices walk downwards under the action of gravity to form continuous gravity flow, and meanwhile the carrying cables of the two vertical lifting units are driven to operate synchronously so as to drive the power generation device to generate power. The utility model provides a vertical synchronous lifting type gravity flow energy storage system, and aims to solve the technical problems in the prior art that intermittent load is generated due to the fact that a single energy storage block is lifted in a steel wire rope winding / friction mode, or the bearing capacity is limited and the effective load is reduced due to the fact that a chain structure is used as a main carrying device of the energy storage block.

The invention discloses a high-precision two-component glue rapid quantitative conveying device which comprises a container, a controller and two conveying pipelines, and each conveying pipeline comprises a thick pipe assembly and a thin pipe assembly; the thick pipe assembly comprises a main liquid storage tank and a thick pipe, one end of the thick pipe is connected with the main liquid storage tank, the other end of the thick pipe is provided with a thick pipe liquid outlet located above the container, a thick conveying pump is arranged on the thick pipe, and a self-flowing section is arranged between the thick conveying pump and the thick pipe liquid outlet; the slim tube assembly comprises an auxiliary liquid storage tank and a three-way valve, the three-way valve is provided with a dropper, a liquid return tube and a liquid extraction tube, and one end of the dropper is provided with a liquid dropping port; one end of the liquid return pipe is communicated with the auxiliary liquid storage tank, and a fine conveying pump is arranged on the liquid return pipe; one end of the liquid pumping pipe is inserted into the self-flowing section; and a weight sensor is arranged below the container. According to the invention, when the thick pipe is used for fast large-flow conveying, non-dripping fast cutoff of the thick pipe can be realized, then high-precision dripping is carried out through the liquid dripping opening, and high-precision and fast quantitative liquid conveying is realized.

The present disclosure relates to a solid particle gravity conveying lock hopper device, comprising at least two structural units, and the structural units are connected in series two by two, each structural unit comprises a particle conveying area and a bypass area which are in communication with each other, the upper end of the particle conveying area is an inlet and the lower end is an outlet; the bypass area is free of solid particles and only has fluid flow, and the inlet and outlet of the bypass area are in communication with the particle conveying area, and the inlet of the bypass area is located below the outlet of the bypass area; the fluid comprises a first flow path and a second flow path, in the first flow path, the fluid flows from bottom to top in the particle conveying area and flows from the outlet of the particle conveying area to the inlet of the particle conveying area; in the second flow path, the fluid flows from the outlet of the particle conveying area to the inlet of the bypass area to flow in the bypass area, and the fluid flowing out of the outlet of the bypass area flows to the inlet of the particle conveying area. The lock hopper device can maintain the system pressure difference, reduce the gas flow, and reduce the equipment cost.

A water treatment system for a water reservoir comprises a collection box; a rotary drum filter arranged to receive gravity flow from the collection box through a receiving line; a primary bio-filter; a secondary bio-filter; one or more connecting lines originating at the rotary drum filter and comprising at least a first outlet line connected to the primary bio-filter and a second outlet line connected to the secondary bio-filter, the second outlet line comprising a pump; and a return line originating at the primary bio-filter and terminating at the water reservoir. The collection box has a bottom and sides defining an interior volume, and comprises a first water intake having a first riser; a second water intake having a second riser; and a third water intake having a third riser, each riser being disposed inside the interior volume and extend upwardly from the bottom of the collection box.

The invention relates to the field of titration experiments, in particular to an air pressure driven anti-blocking viscous aid titration device and method. The pneumatic-driven anti-blocking viscous aid titration device comprises a burette, a sealing cover and the like, and the burette is screwed with a sealing cover through threads. Through inert gas constant-pressure driving, viscous resistance is overcome, pipe wall adhesion is inhibited through gas pressure, the problem of blockage is avoided during continuous titration of an auxiliary agent, and compared with traditional gravity titration, the flow velocity fluctuation rate of the auxiliary agent is greatly reduced, so that the experiment batch difference is effectively reduced, and the experiment efficiency is improved. It is guaranteed that the auxiliaries stably flow out in the state of filling the outflow channel all the time under the condition of any discharging opening, and the problems that under the condition that an existing valve is small in opening, the auxiliaries flowing out by means of gravity cannot flow out in the state of filling the outflow channel, and then part of the auxiliaries adhere to the inner wall of the channel in the outflow process and cannot flow out in time are solved. And the flow rate fluctuation rate of the auxiliary agent is large.

The present invention relates to a method for classifying the genetic types of seepage barriers in deep-sea waterways, and belongs to the technical field of geological exploration for oil and gas field development. The present invention discloses a method for classifying the genetic types of seepage barriers in deep-sea waterways, comprising obtaining the sedimentation process, scale, lithology, distribution location, and gravity flow genetic type of the deep-sea waterway; classifying the genetic types of the seepage barriers in the deep-sea waterway into landslide-induced seepage barriers, debris flow-induced seepage barriers, low-density turbidite-induced seepage barriers, and semi-pelagic sediment-induced seepage barriers based on the gravity flow genetic type of the deep-sea waterway; and further finely classifying the genetic types of the seepage barriers in combination with the lithology, scale, distribution location, and sedimentation process of the seepage barriers. The present invention fills the gap in the classification scheme of the genetic types of seepage barriers within deep-sea waterways, thereby providing important geological basis and guidance for the evaluation of the continuity and connectivity within the reservoirs of deep-sea waterways.

The present invention discloses a structure of a riverside multi-water-level combined water intake pump house and a water intake method. It includes a water intake forebay; an outlet back pool arranged at the rear end of the water intake forebay; a pump house arranged between the water intake forebay and the outlet back pool; a lower-layer gravity flow channel arranged between the water intake forebay and the outlet back pool; and an upper-layer energy dissipation flow channel arranged between the water intake forebay and the outlet back pool. The beneficial effects of the present invention are as follows: By improving the reasonable layout and process design between the structures, multiple process flows can be integrally arranged on a smaller floor area, enabling the combination of water conservancy and municipal water intake, with a smooth process and very convenient management, and adapting to the functional connection in the short and long terms.

The present application relates to a wheel-driven track-type gravity flow energy storage system and an energy storage method, wherein the wheel-driven track-type gravity flow energy storage system includes a dual-circulation bearing mechanism, a dual-circulation traction mechanism and a dual-wheel drive mechanism; the dual-circulation bearing mechanism includes two bearing rails, the dual-circulation traction mechanism includes two traction ropes, and the dual-wheel drive mechanism includes two parallel and vertically installed drive wheels, the traction ropes are wrapped around the drive wheels and continuously run under the drive wheels; a plurality of carrying mechanisms are arranged between the bearing rails, and the traction ropes pull and drive the carrying mechanisms to run continuously, and the carrying mechanisms are used to carry energy storage blocks as energy storage carriers; the driving wheels are connected to electric generators; the electric generators are used to drive the driving wheels to actively rotate, forming a continuous gravity flow by continuously lifting the energy storage blocks; and the driving wheels are driven to rotate by continuously descending the energy storage blocks, so as to convert gravitational potential energy into electrical energy of the electric generators to form a continuous energy flow.

The invention discloses a method for determining a black shale material source carrying path, and relates to the technical field of shale oil and shale gas exploration and development engineering. According to the method, the contents of clay minerals and feldspar are specially selected to be combined with the granularity of shale particles to establish a series of plane contour maps, and through superposition of the plane contour maps, a carrying path with siliceous clastic rock as a main material source, a carrying path with carbonate rock as a main material source and a carrying path of gravity flow are judged; and the carrying path of the black shale of the target layer series in the research area is determined through superposition of the carrying paths. According to the method for determining the carrying path of the black shale material source, the ancient landform of the sedimentary basin can be effectively recovered, an important means is provided for optimization of a favorable shale oil and gas exploration and development area, and then the success rate of well drilling can be effectively increased.

This invention relates to the field of marine lubricating oil technology, providing a marine lubricating oil cooling system and a vessel suitable for low-temperature environments. The aforementioned marine lubricating oil cooling system for low-temperature environments includes: an oil tank, a cooler, an ejector pump, a gravity flow generator, a pump, and a lubricating oil user. The oil tank, cooler, ejector pump, and lubricating oil user are sequentially connected to form a lubricating oil circulation loop. The cooler has a shell side and a tube side, one of which is connected to the oil tank, and the other is connected to the gravity flow generator. The pump inlet is connected to the oil tank, and the pump outlet is connected to the ejector pump. By incorporating the oil tank, cooler, ejector pump, lubricating oil user, and pump, this marine lubricating oil cooling system allows the vessel to utilize the pumped lubricating oil as a medium for ejecting and cooling when navigating in polar low-temperature seawater environments. Furthermore, the lubricating oil user can heat the lubricating oil during the circulation process, ensuring a stable lubricating oil supply.

The application relates to the technical field of ecological environment engineering, and discloses a modular rain flood resource deep purification and underground storage integrated device, which comprises a radial shear purification module, a hydraulic closed locking assembly and a spiral push flow storage module which are coaxially and communicatively arranged from top to bottom; the radial shear purification module comprises a first shell, a composite filter material layer filled in the first shell, an inverted funnel-shaped flow guide cover arranged above the composite filter material layer and a central siphon assembly, a horizontal annular flow channel is formed between the lower edge of the inverted funnel-shaped flow guide cover and the upper surface of the composite filter material layer; the spiral push flow storage module comprises a second shell and a spiral flow guide plate arranged in the second shell. Through cooperation of the inverted funnel-shaped flow guide cover and the central siphon assembly, vertical gravity flow during cleaning is converted into horizontal radial converging flow along the filter material surface, the integrity of a biofilm structure is maintained, and long-term stable operation of the filter layer can be realized without external power.

The disclosure pertains to a modification of a stripping-type urea plant by replacing the falling-film type HP carbamate condenser with a horizontal submerged condenser in combination with modification of the reactor internals, thereby permitting to maintain gravity flow in the modified plant.

The invention relates to a method and a system for conveying electrolyte in a flow battery and a flow battery operation method. The electrolyte delivery system provided by the invention comprises three electrolyte storage tanks which are sequentially connected in series, the internal pressures of the three electrolyte storage tanks are respectively normal pressure, variable pressure and low pressure, the delivery method realizes self-circulation of the flow battery system through two times of gas phase pressure equalization and gravity flow of the electrolyte, and the self-circulation of the flow battery system is realized under the condition that an electrolyte delivery pump is not used. The problem of electrolyte leakage caused by sealing failure of a galvanic pile in a traditional flow battery is effectively avoided through a suction type electrolyte conveying mode; and meanwhile, an electrolyte circulating pump is not used, so that the problems of maintenance and the like of the pump are avoided, and long-period continuous operation of the flow battery system can be realized under the condition that a standby pump does not need to be added, so that the safety and the stability of the system are effectively improved.

The invention provides an ore pulp desliming and desilting beneficiation method and system based on lithium ore. The method comprises the following steps that ore pulp is subjected to ore grinding and grading treatment, and an ore grinding and grading overflow product is obtained; sequentially carrying out multiple times of desliming and desilting operations on the ore grinding and grading overflow products through the hydraulic hydrocyclones for multi-stage desliming, so as to obtain silt tail slurry products and underflow ore slurry products discharged by the hydraulic hydrocyclones for desliming at all stages; and carrying out tailing treatment on the sediment tail slurry product. According to the multistage desliming hydrocyclone, under the multiple centrifugal effects, the purposes of desliming, desilting and beneficiation of ore pulp are achieved in a grading mode, desliming, desilting, stable product quality and large output yield can be achieved in a grading mode, meanwhile, the desliming and desilting quality of the ore pulp after grading can be guaranteed, and on the premise that the beneficiation quality of the ore pulp is guaranteed, the beneficiation quality of the ore pulp is guaranteed. The production goals of high efficiency, energy conservation and environmental protection are achieved, and the explosion risk and the blocking risk of a conveying pipeline and a self-flowing pipeline in the sedimentation process of mineral particles in the high-concentration ore pulp are avoided.

The application discloses a double-driven bulk material conveying system and a gravity flow energy storage system and method thereof, and relates to the technical field of conveying equipment. The double-driven bulk material conveying system comprises a bearing structure, a traction structure, a conveying structure, a driving device, a first turning structure, a second turning structure and a stockyard; the bearing structure comprises a bearing ring body for bearing a carrier vehicle; the first turning structure and the second turning structure comprise a winding drum and a turning wheel; the driving device drives a traction rope of the traction structure and a conveying belt of the conveying structure to rotate synchronously in a first direction, and then drives the carrier vehicle of the conveying structure to move synchronously with the bearing structure and the conveying belt. The double-driven bulk material conveying gravity flow energy storage system comprises the double-driven bulk material conveying system. The energy storage method is suitable for the double-driven bulk material conveying gravity flow energy storage system. The double-driven bulk material conveying system and the gravity flow energy storage system and method thereof are provided to solve the technical problems of excessive running resistance and low carrying efficiency in the conveying process of bulk materials in the prior art.

A work machine (1) such as an excavator is converted, e.g. for amphibious operation, with a secondary fuel tank (70) mounted behind the primary fuel tank (60) in place of the counterweight (50), which is moved to the rear and mounted on a detachable part (30) of the slewing upper frame (20). The detachable part (30) is removed and the counterweight (50) replaced in the position of the secondary fuel tank (70) to convert the machine (1) back to a standard configuration. In another aspect, the secondary fuel tank (70) is arranged supply fuel to the primary fuel tank (60) by gravity flow through a fuel line (80) having a non-return valve (81) that opens and closes responsive to a differential fuel pressure (Fp2 - Fp1) as the machine (1) rocks forwards and backwards in use.

The application discloses a gravity flow drainage pipe network dynamic water quality simulation and prediction coupling model method, belongs to the field of intelligent water management, and particularly relates to dynamic water quality transformation simulation and prediction in a gravity flow drainage pipe network. The application discloses a gravity flow drainage pipe network dynamic water quality simulation and prediction coupling model method, belongs to the field of intelligent water management, and particularly relates to dynamic water quality transformation simulation and prediction in a gravity flow drainage pipe network. The application discloses a gravity flow drainage pipe network dynamic water quality simulation and prediction coupling model method, belongs to the field of intelligent water management, and particularly relates to dynamic water quality transformation simulation and prediction in a gravity flow drainage pipe network. The application discloses a gravity flow drainage pipe network dynamic water quality simulation and prediction coupling model method, belongs to the field of intelligent water management, and particularly relates to dynamic water quality transformation simulation and prediction in a gravity flow drainage pipe network. The application discloses a gravity flow drainage pipe network dynamic water quality simulation and prediction coupling model method, belongs to the field of intelligent water management, and particularly relates to dynamic water quality transformation simulation and prediction in a gravity flow drainage pipe network.

The invention relates to the technical field of process control, in particular to an automatic rainwater collection and reuse process management system and method, and the system comprises a rainfall load dynamic evaluation module, a runoff drainage path optimization module, a reuse flow collaborative scheduling module, an operation energy efficiency modeling module and a reuse process feature output module. According to the method, the deposition distribution of the solid-liquid two-phase flow is deduced based on the water flow shear force and the dynamic energy dissipation rate, the runoff drainage path is optimized, the momentum peak value is captured, the flow state evolution precision under the rainfall impact is improved, the hydraulic slope fall of the gravity flow and the pressure flow is analyzed, and the water head loss sudden change section caused by pipe diameter shrinkage and the elbow is checked; the eddy current energy consumption accumulation effect caused by water pressure pulsation and turbulent flow surge is accurately mapped, the anti-scouring and anti-resonance hydraulic stable window period is extracted, the synchronous cooperative response safety of multiple valve sets of an executing mechanism is enhanced, pipe network cavitation and cavitation erosion and water hammer oscillation abrasion are reduced, and it is ensured that water pump transmission is efficient and stable.

This invention discloses a method for constructing a "sponge" mining area in the subsidence zone of underground mining. It fully utilizes the large surface subsidence space caused by mining operations to purify, store, and utilize mine water resources, and restore the mining area's ecology. The method involves horizontally dividing the subsidence space into "purification-storage-utilization" functional zones and vertically reconstructing the soil into "isolation-conservation-nurturing" functional zones. Horizontally, the surface subsidence basin is divided into three water resource functional zones: a water purification zone, a water storage zone, and a water use zone. The water purification zone is located upstream of the gravity flow of mine water at the edge of the subsidence basin; the water storage zone is located in the center of the subsidence basin; and the water use zone is located downstream. This method not only restores mine land resources but also achieves multiple objectives, including improving the water environment, conserving water resources, restoring the aquatic ecosystem, ensuring water security, and utilizing water resources.

The utility model discloses a water-cooling self-gravity flowing device which is applied to the field of plastic production, a filter screen is arranged in a water tank to filter cooling water, the quality of the cooling water is guaranteed, a shifting block is moved to enable a sliding rod to drive a toothed bar to move, a transmission gear drives the other toothed bar to move to enable the other sliding rod to move, and the water-cooling effect is improved. The sliding rod moves to drive the clamping head to move, the clamping head moves to enable the clamping head to be disengaged from the clamping hole, the cover plate is taken down, and the filter screen is taken out for maintenance, so that the filter screen is convenient to maintain. A second bevel gear rotates to enable a rotating pipe to drive a stirring pipe to rotate, cooling water is lowered, a fixed pipe is inflated by an air pump, air enters the stirring pipe through the rotating pipe and is sprayed out from an air spraying hole, and the cooling water is cooled, so that the purpose of cooling the cooling water can be achieved, the cooling effect is guaranteed, and the cooling device is convenient to use.

The invention provides a water hammer protection method suitable for a pumping station pressurization and gravity flow combined water delivery system, which comprises the following steps of: designing the pumping station pressurization and gravity flow combined water delivery system which comprises an upper reservoir, a water pump, a pump rear valve, an air tank, a high-level water tank, a plurality of groups of pressure reducing valve energy dissipation box combinations, a flow regulating valve and a lower reservoir; and when the water pump suddenly generates a pumping power-off accident, the pump rear valve, the pressure reducing valves and the flow regulating valve are controlled according to the action strategy, so that the pump rear valve, the pressure reducing valves and the flow regulating valve act according to the action strategy, and water hammer protection is achieved. According to the method, the water hammer protection problem of the pressurization section and the gravity flow section of the pump station is solved, the pipeline safety of a complex water conveying system can be effectively protected, meanwhile, the arrangement method of the pressure reducing valve and the energy dissipation box is provided, the reasonable action rule of all the valves is provided, and engineering design can be directly guided.