930 results about "Water intake" patented technology

This invention discloses a wave energy and solar energy combined power generation device and its power station, belonging to the field of new energy technology for power generation using renewable energy. It includes floating boxes and photovoltaic panels. Adjacent floating boxes are hinged laterally to the same horizontal axis. The photovoltaic panels are arranged on the surface of the floating boxes at an angle facing south or horizontally. A connecting rod perpendicular to the horizontal axis is hinged to the horizontal axis. A hydro-generator and a passive piston pump for driving the hydro-generator are installed inside the floating box. The piston rod of the passive piston pump is hinged to the connecting rod at a position away from the horizontal axis. When adjacent floating boxes swing up and down around the horizontal axis, the passive piston pump completes the water intake and drainage actions, and drives the hydro-generator during drainage. This invention as a whole can realize the combined power generation of wave energy and solar energy. During the swinging of the floating boxes, the orientation of the photovoltaic panels can remain approximately unchanged, thus ensuring the utilization efficiency of the photovoltaic panels while fully utilizing wave energy.

The invention provides a water plant raw water and clear water lifting pump station joint optimization energy-saving dispatching method and system for solving the problems that traditional pump station dispatching depends on artificial experience, global optimization is lacked, and energy waste is serious. Comprising the steps that a flow-lift and flow-efficiency relation model is established, and a variable frequency pump deduces a performance formula under any frequency based on the similarity law; in the first-stage optimization scheduling, the optimal flow of a water intake pumping station and the optimal water storage level of a clean water tank in each time period are determined by adopting a dynamic programming algorithm and taking the minimum total work of the system as a target, and the conditions of flow balance, water level constraint and the like are met; and in the second-stage optimization scheduling, the genetic algorithm is adopted to optimize the combination and operation frequency of the water pumps in each time period by taking the minimum total power of the pump set as a target, and a flow and lift deviation penalty term is introduced. According to the method, water taking, water storage and water supply whole-process collaborative optimization is achieved, the energy saving rate exceeds 10%, the operation cost is reduced, the method adapts to dynamic changes of the water source tide level and the water demand, and the dispatching intelligent level is improved.

A pet water dispenser includes a feed-water tank, a drinking device and an evaporator; a water container is arranged in the feed-water tank; the drinking device includes a drinking bowl, and a control valve which is connected to the drinking bowl and the feed-water tank and controls communication and separation between the drinking bowl and the feed-water tank; the evaporator includes a water tray and a water intake assembly; the water tray is in butt joint with the control valve which controls the communication and separation between the drinking bowl and the water tray; the water intake assembly is arranged in the water tray, with surface area larger than the bottom area of the water tray. Wastewater is automatically evaporated, thus avoiding inconvenience in wastewater treatment by a user, and also preventing water in the drinking bowl from entering the feed-water tank to cause water body pollution.

The utility model discloses a quick cleaning and purging device for an iron notch mud sleeve, which relates to the technical field of metallurgical equipment and comprises a scraping structure, a connecting rod structure, a butt joint structure, a connecting structure and an air inlet structure. The scraping structure comprises a connecting sleeve, a first threaded hole, a scraping plate, a drill bit and an exhaust hole, the threaded hole is formed in one side of the connecting sleeve and used for being in butt joint with the connecting rod body, the drill bit is fixed to the other side of the connecting sleeve and used for finding the iron notch center and fixing the scraping plate, and the exhaust hole is used for blowing and cleaning residues. The connecting rod structure is connected with the connecting structure through the butt joint structure, and the connecting structure is connected with the air inlet structure assisting in air inlet and water inlet. The air inlet structure comprises an air guide ring, an oil seal ring and an electromagnetic valve, and compressed air is connected to be matched with the butt joint structure to assist in cleaning iron notch residues and residues of the whole rod body. The device is simple and stable in structure, assists cleaning through compressed air, and has the advantages of simplicity in operation, rapidness and high efficiency.

The application relates to the technical field of hydraulic engineering construction, in particular to a water conservancy engineering water intake tunnel construction device and method. The device comprises a support and further comprises a driving motor arranged on the lower side of the support, a water mill drill fixedly installed on the output shaft of the driving motor, and a driving mechanism arranged on the support, wherein the driving mechanism comprises a switching frame which is slidably sleeved on the support in the left-right direction. According to the application, after the water mill drill completes the punching work, the switching frame can move leftwards while the water mill drill moves rearward, thereby saving a large number of steps. According to the design of the clamping plates and the lever, when the front ends of the two clamping plates and the lever are inserted into the gap between the rock column and the hole wall, the rock column can be knocked off by knocking the lever, the rock column can be clamped by the two clamping plates, and the rock column can be taken out by moving the position of the whole device.

The invention relates to a water balance regulation and control method and device for a power plant, electronic equipment and a storage medium, and the method comprises the steps: inputting the multi-source operation data of a current power plant water system into a preset time sequence prediction model, outputting a water quantity prediction result, and based on a preset multi-target optimization algorithm, according to the current unit operation state and the water quantity prediction result, obtaining a water balance regulation and control result; obtaining a target control strategy meeting a preset constraint condition; inputting the current wastewater quality and quantity information into a preset wastewater scheduling model for wastewater utilization planning, and generating a target wastewater utilization strategy; and generating a target control instruction according to the target control strategy and the target wastewater utilization strategy, and issuing the target control instruction to an execution mechanism so as to control the execution mechanism to perform a corresponding adjustment action based on the target control instruction. Therefore, the static, isolated and extensive defects of existing coal-fired power plant water system management are overcome, the unit power generation water taking amount is remarkably reduced, the comprehensive utilization efficiency of water resources is improved, and the method adapts to the complex operation working conditions such as deep peak regulation.

The invention relates to the technical field of crossing of water conservancy and nuclear power engineering, in particular to a nuclear power water taking open channel flow field analysis method based on a physical model test, and solves the problems that flow field analysis in the prior art mainly depends on theoretical calculation or numerical simulation, flow field characteristics under the combined action of tidal current, waves, water taking operation and other factors are difficult to truly restore, and the flow field analysis accuracy is low. And the analysis result is greatly deviated from the actual analysis result. The method comprises the following steps: constructing a physical model for accurately simulating key facilities such as a water intake, a drain grating net and a pump room, setting multiple typical working conditions, carrying out a flow field simulation test, and recording data such as a flow velocity, a flow direction and a water level. Through a physical model test means, actual water flow characteristics under a complex marine environment and various working conditions can be reflected more truly, the accuracy and reliability of flow field analysis are remarkably improved, and a scientific basis and technical support are provided for design, operation and risk assessment of a water intake system of a nuclear power plant.

The invention discloses a clear water circulation intelligent scheduling method and system based on water environment situation driving, and the method comprises the steps: carrying out the automatic model configuration based on a multi-mode automatic selection algorithm driven by the water environment situation, and driving the running water scheduling simulation; online simulation calculation of clear water circulation forecasting scheduling and forecasting and early warning of clear water circulation are achieved; a clear water loop scheduling decision-making platform is established by combining a WebGL visualization technology with a WebGis technology, and refined simulation rehearsal of various scheduling scenes on a three-dimensional terrain is realized; through a clear water circulation multi-target scheduling decision scheme optimization method, according to a clear water circulation scheduling result, optimization of a plurality of scheduling schemes is realized, factors such as water change amount, engineering operation time, gate water discharge amount, pump station water diversion amount and the like are brought into an evaluation index system, and a clear water circulation multi-target scheduling decision scheme which not only meets the clear water circulation requirement but also meets the water circulation requirement is optimized. The scheduling time can be saved to the greatest extent, the cost is reduced, and the experience judgment error of a scheduling decision maker is reduced.

The invention relates to the field of water intake of water conservancy projects, and discloses a hydraulic automatic desilting bottom barrier water intake which comprises a desilting module, a water inlet module and an anti-scour module. The sand discharging module comprises a primary sand flushing part and a secondary sand flushing part. The primary sand flushing part comprises a sand guide ridge, a sand flushing weir, a sand flushing flow channel, a side wall and a partition wall. The secondary sand flushing part comprises a sand blocking ridge, a stone blocking grid, a sand discharging gate, a sand discharging gallery, a sand flushing gate and a sand flushing gallery. The sand guide ridge assembly is composed of a plurality of sand guide ridges, the arrangement mode of the sand guide ridge assembly is that the upstream opening size is small, the downstream opening size is large, and the sand guide ridge assembly is arranged on the upstream of the water taking opening. A gravel flow channel is formed between the sand guiding ridge assemblies and is wide in the upstream and narrow in the downstream. A communicating channel is arranged between the lowest points of the gravel flow channels. Sand can be intercepted on the upstream, sand is automatically flushed through hydraulic power and discharged to the downstream, and the situation that a large amount of sand enters the downstream along with water flow to deposit and block the grating is avoided.

The present invention relates to the technical field of water purification. Disclosed is a water softening treatment apparatus for beer brewing. The water softening treatment apparatus comprises a control cabinet, a main frame, a driving pump, a driving electric motor, a plurality of filters, a pipe, a washing pump, a softening tank, a salt box and a water intake pipe, wherein the control cabinet is mounted at the top of the main frame; the driving pump and the washing pump are mounted on two sides of the control cabinet; the driving electric motor is mounted at the top of the driving pump; the plurality of filters are mounted on a rear side of the control cabinet; the pipe connects the driving pump to the plurality of filters, and the pipe connects the washing pump to the salt box; the softening tank is mounted on one side of the filters; the filters are in communication with the softening tank by means of the water intake pipe; the salt box is arranged on one side of the softening tank; and a rotatable regeneration device is mounted in the middle of the softening tank. The water softening treatment apparatus solves the problems such as the efficiency and quality of water softening being affected by insufficient resin regeneration caused by incomplete washing during the resin regeneration performed by an existing water softening apparatus.

The invention discloses a discharged water temperature abnormity identification and emergency processing method, device and equipment and a storage medium, and the method comprises the steps: collecting dam front vertical water temperature data, synchronously integrating data of a water quality sensor and a meteorological station, building a three-dimensional dynamic water temperature digital twinborn model based on a numerical model, real-time mapping and simulation of the fluid-heat-solid coupling effect of the reservoir area are achieved; setting a basic threshold according to a downstream ecological target, generating a dynamic threshold interval in combination with a seasonal probability distribution model, a meteorological disturbance factor and a water quality association rule, and dividing into multi-stage early warning according to water temperature deviation; when a preset early warning level is triggered, the digital twinborn model automatically adjusts the position of layered water taking equipment, a tail water mixing device or a solar heating system is started, and an ecological water supplementing strategy is linked; future water temperature changes are rehearsed through a digital twinborn model, and multiple sets of regulation and control plans are generated. According to the invention, a'monitoring-analysis-decision-execution 'full-closed-loop system is constructed, and accurate recognition and efficient processing of abnormal water temperature are realized.

The utility model relates to the technical field of water pollution treatment, in particular to a landscape water dialysis purification system. The system comprises a water intake pumping station, a water distribution well and a cloth filter tank, water taken by the water intake pumping station is conveyed into the water distribution well through a water inlet pipe of the water distribution well, the water inlet pipe of the water distribution well is connected with PAC and PAM pipelines, sewage is distributed into the cloth filter after being subjected to first flocculation and sedimentation in the water distribution well, PAM is added into a water outlet pipe of the water distribution well, pollutants in water are further subjected to flocculation and sedimentation in a flocculation and sedimentation section of the cloth filter, and the pollutants in the water are subjected to secondary flocculation and sedimentation. The sewage is filtered by the fiber rotary disc filter after two times of flocculating settling, and the filtered clear water can be discharged, so that the sewage is treated, the load of the fiber rotary disc filter is effectively reduced in the process, and the efficient treatment process of the sewage is ensured; sludge generated in the operation process of the system is collected and then filtered, so that the sludge produced by the system is treated.

The invention relates to a layered water taking intelligent control system and method based on multi-modal fusion and autonomous evolution. Comprising an intelligent water intake tower and an intelligent decision-making unit, the intelligent water intake tower is of a vertical multi-layer structure, and each layer is provided with a movable deformable water intake, a multi-mode sensor array, a water intake valve arranged at the deformable water intake, a deformable water intake optimization module, a data acquisition module of the multi-mode sensor array and a self-energy-supply module driven by green energy. The intelligent decision-making unit comprises a deep reinforcement learning dynamic weight distribution module, a multi-objective optimization solving module, a model prediction control module based on digital twinning, a cross-layer coupling compensation algorithm module, an intelligent compensation mechanism module and an intelligent control execution module. According to the layered water taking intelligent control system and method based on multi-modal fusion and autonomous evolution, parameters such as water temperature, turbidity, dissolved oxygen and pollutant concentration of downstream effluent are controlled, and efficient and accurate control over layered water taking is achieved.

Disclosed in the present application are a flow valve and a control method therefor, a zero-cold-water circulation system of a water heater, and a water heater. The flow valve (100) is used for a zero-cold-water circulation system of a water heater. The zero-cold-water circulation system of the water heater comprises a heat exchanger (200), and a cold-water intake pipe (300) and a hot-water output pipe (400), which are in communication with the heat exchanger (200). The flow valve (100) comprises: a valve body (10), which is provided with a bypass flow passage (110) configured to bring the cold-water intake pipe (300) into communication with the hot-water output pipe (400), wherein the bypass flow passage (110) has at least a first branch passage (1101) and a second branch passage (1102) that are arranged in parallel; and a switching valve (20) disposed on the valve body (10) and configured to open or close the first branch passage (1101).

A wastewater recycling device, comprising a sedimentation mechanism (1), a sludge discharge mechanism (2) and a cleaning mechanism (3). The sedimentation mechanism (1) comprises a sedimentation tank (101), wherein the sedimentation tank (101) is provided with a first partition plate (103), a second partition plate (106), a third partition plate (107) and a collection plate (102). The sludge discharge mechanism (2) comprises a shielding disk (215) fixed to a sludge discharge pipe (213) by means of a rotary blade (214), rotating fan blades (203) rotationally connected inside a water intake pipe (202), and an associated transmission structure. The cleaning mechanism (3) comprises a piston plate (301) movably connected to the inner wall of the first partition plate (103), a compression spring (303) fixedly connected to the bottom of the piston plate (301), and a discharge chute (304) located on a side wall of the sedimentation tank (101); and further comprises a rotary cleaning rod (308) connected to a first floating block (305), and a scraper (310) connected to a second floating block (309).

The invention relates to the technical field of water conservancy and hydropower engineering, and discloses a sediment-carrying bed load riverway water taking structure which comprises a bed stabilizing structure, a flow guiding structure and a water taking structure, the bed stabilizing structure is arranged perpendicular to the water flow direction of a riverway, and one end of the bed stabilizing structure is connected with one side of the riverway; one side of the diversion structure is connected with the other end of the bed stabilizing structure, and the other side is connected with one end of the flood discharge gate; the water taking structure comprises a water taking weir, a pre-sedimentation tank and a sand blocking ridge, the pre-sedimentation tank is arranged on the other side of the river channel, the outer wall of the pre-sedimentation tank is connected with the flood discharge gate, the water taking weir is arranged on the side, close to the flood discharge gate, of the pre-sedimentation tank, and the sand blocking ridge is arranged on the downstream of the pre-sedimentation tank. The water taking structure carries out water taking and desilting, the water diversion and sand prevention problems of the river channel water taking opening are solved, and the operation efficiency of the water taking system is improved.

The application belongs to the technical field of hydraulic devices, and particularly relates to a deep diving oil pump oil cylinder integrated hydraulic machine and an application method thereof. The hydraulic machine comprises a hydraulic oil cylinder, an integrated power unit and a connecting structure. The integrated power unit comprises a pressure-bearing container, a motor pump group, a control valve group and an electric control system. The pressure-bearing container comprises a first chamber and a second chamber separated by a first partition structure. The containing space of the hydraulic oil forms a first communication channel and a second communication channel with the rodless chamber and the rod chamber of the hydraulic oil cylinder respectively. The electric control system controls the flow path and flow area of the hydraulic oil through the control valve group, and provides power for the flow of the hydraulic oil in the communication channel through the motor pump group. The connecting structure connects the hydraulic oil cylinder and the integrated power unit on the corresponding side of the rodless chamber and the rod chamber of the hydraulic oil cylinder respectively. Through the optimization of the spatial distribution and the flow path of the hydraulic oil by the highly integrated structure, the energy efficiency, the maintenance convenience and the reliability of the layered water intake gate of the system are improved.

The invention provides a saline-alkali soil crop multi-water-source irrigation control method and system, and belongs to the technical field of agriculture, and the method comprises the steps: determining an irrigation water salinity target threshold value and a target total irrigation amount according to soil salinity data and crop physiological parameters; determining a water distribution strategy based on the salinity concentration data, wherein the water distribution strategy at least comprises irrigation priorities and collocation of different types of water sources; based on the target irrigation total amount, the irrigation water salinity target threshold value and the water distribution strategy, the target water taking amount of each type of water source is determined; and generating an irrigation control instruction according to the target water intake amount. According to soil salinity, crop types, crop physiological parameters and salinity concentration of multiple water sources, the irrigation water salinity target threshold value and the irrigation water total amount are dynamically and accurately determined; and meanwhile, a priority water distribution strategy is formulated, so that flexible allocation of irrigation among multiple water sources and fine management of the salinity concentration of crop irrigation water can be realized, and soil salinization and crop salinity stress are effectively avoided.

The invention relates to a diagonal flow pump blade angle control method and system, a terminal and a storage medium, and relates to the technical field of diagonal flow pump control, and the diagonal flow pump blade angle control method comprises the steps that a real-time load data set and a historical load data set of a preset unit are obtained; analyzing the real-time load data set and the historical load data set to determine a confidence fusion load; judging whether the confidence fusion load is greater than a preset first response threshold; if not, a preset water taking diagonal flow pump blade is controlled to supply water to a preset condenser at a preset basic water taking angle, and a preset water storage diagonal flow pump blade is controlled to store water into a preset water storage pond at a preset basic water storage angle; if yes, analyzing the confidence fusion load to control a preset water storage pond to supplement water to a preset condenser, and controlling the angle of a preset water storage diagonal flow pump blade and the angle of a preset water taking diagonal flow pump blade to supply water to the condenser. The diagonal flow pump has the effect of improving the load response capacity of the diagonal flow pump.

The invention relates to the crossing technical field of water conservancy and nuclear power engineering, in particular to a multi-unit cold source risk difference test method based on obstruction migration, and solves the problems that in the prior art, cold source risk assessment mainly depends on numerical simulation or empirical judgment, interaction between complex water flow and obstacles is difficult to truly restore, and the risk is poor. The migration behavior of the blockages under the condition of water intake of multiple units and the risk difference caused by the migration behavior cannot be accurately reflected. The method comprises the following steps: establishing a physical model for accurately simulating key structures such as a water taking open channel, a pump room and a trash holding net, setting a plurality of tide and water taking flow combined working conditions, and putting bulkheads such as marine organisms and floating objects. According to the method, through a mode of combining a physical model test and numerical simulation, the actual migration process of the blockages in a complex flow field can be reproduced more truly, the accuracy and intuition of cold source risk assessment are remarkably improved, and a scientific basis is provided for safety design and operation management of a multi-unit water intake system of a nuclear power plant.

The invention discloses a thermal power plant water intake pipeline water leakage identification method and system based on multi-modal data, and relates to the technical field of multi-modal data processing, and the method comprises the steps: determining a respective multi-modal fusion feature time sequence of each identification period according to multi-modal time sequence data; according to the multi-modal fusion feature time sequence, determining a multi-modal fusion feature time sequence prediction sequence of the (i + k + 1) th recognition period; determining a current period deviation matrix and a prediction period deviation matrix according to the multi-modal fusion feature time sequence and the multi-modal fusion feature time sequence prediction sequence; determining a current periodic feature gradient matrix and a prediction periodic feature gradient matrix according to the multi-modal fusion feature time sequence and the multi-modal fusion feature time sequence prediction sequence; and based on a water leakage identification model, generating a water leakage identification result according to the current period deviation matrix, the prediction period deviation matrix, the current period characteristic gradient matrix and the prediction period characteristic gradient matrix. The method has the effect of improving the reliability of water leakage identification of the water taking pipeline.

1. Name of the product in this design: Water tap. 2. Application of this design: for urban, agricultural and emergency water supply. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

A multifunctional circulating flume test device and method for simulating riverbank slope damage under scouring and seepage effects belongs to the field of hydraulic engineering technology. Its water supply system includes pipelines, a water supply tank, a water pump, a leveling tower, and a drainage trough for providing water flow and drainage. The flume system includes a water intake trough, an energy dissipator, a circulating flume, a limiting module, and a tailgate for providing water flow channels and riverbank plasticity. The filtration system includes a filter pool, filter plates, and baffles for filtering and settling particles in the water and providing circulating water flow. The support system includes an adjustable support for supporting the entire circulating flume and providing slope. This invention overcomes the shortcomings of existing flume devices in simulating riverbank collapse tests due to fixed river morphology and limited functionality. It can simulate the scouring and damage process of straight riverbanks and study the scouring and damage process of concave and convex banks under varying bend conditions, providing theoretical and technical support for ecological bank protection engineering design and riverbank disaster prevention and mitigation. It can meet the multifunctional needs of scientific research and engineering practice.

This invention belongs to the field of household appliance technology and discloses an intelligent water intake method, device, blender, and storage medium for a high-speed blender. The method includes: detecting the amount of ingredients in the blending chamber; obtaining the ratio information corresponding to user settings; determining the total amount of water required for cooking based on the amount of ingredients in the blending chamber and the ratio information; and controlling the water intake of the blender based on the total water intake. Through this method, the amount of ingredients in the blending chamber is automatically detected during the cooking process, and the water intake is intelligently adjusted according to user settings, resulting in a beverage with a suitable consistency, improving the taste, and preventing machine malfunctions such as burning at the bottom or motor overheating due to excessively thick beverages.

The invention relates to the technical field of reservoir discharged water temperature improvement, and discloses a modular layered water taking device and method based on wireless charging, and the device comprises a gate groove assembly, a gate assembly, a wireless power supply and communication assembly, a grabbing beam, a two-way portal crane, electrical and control equipment and the like; the method comprises the steps that the grabbing beam is controlled through the two-way portal crane, and the gate assembly is grabbed and moved to vertically ascend and descend along the gate groove assembly to be positioned to the designated water taking layer position; when the gate assembly moves to a charging area, a wireless charging device of the gate assembly is automatically aligned with a wireless charging base of the power supply and communication assembly, a non-contact energy transmission channel is established based on the electromagnetic induction principle, and the battery assembly is charged. The controller dynamically adjusts the opening degree of the gate leaf or triggers closing according to data, water taking efficiency is optimized, and structural safety is guaranteed. According to the invention, the water conservancy project and the Internet of Things technology are deeply fused, and each module forms an organic whole through intelligent control; the method is particularly suitable for medium-large hydro-junction projects needing frequent adjustment of water taking layers.

The fire-fighting water intake comprises a protective well, a well lid covering a well mouth of the protective well and a straight pipe connected with a water outlet of the semi-underground fire-fighting water pool, the end, away from the semi-underground fire-fighting water pool, of the straight pipe is connected with a vertical pipe, and a top port of the vertical pipe extends into the protective well and is detachably connected with a sealing plate. A through hole is formed in the sealing plate and connected with a connector pipe, and a pipe opening of the connector pipe is provided with an inner buckling type water suction pipe connector used for being connected with a water taking pipe of a fire fighting truck. According to the fire-fighting water intake for the semi-underground fire-fighting pool, safe and rapid water intake of a fire-fighting truck is ensured, and the fire-fighting truck is ensured to fully utilize the water quantity of the fire-fighting pool in a fire disaster period.

The invention provides a multi-dimensional evaluation method and system for the thirst degree of a user, and the method comprises the steps: obtaining the body fluid detection data of the user, the blood detection data of the user, and the appearance detection image of the user, and extracting each water shortage characterization feature of the user based on the appearance detection image of the user; identifying the actual water shortage degree of the user through a water shortage degree evaluation model on the basis of each water shortage characterization feature of the user, the thirst degree independently narrated by the user, the body fluid detection data of the user and the blood detection data of the user; and recognizing the thirst degree independently narrated by the user, and recognizing the actual thirst degree of the user in combination with the actual water shortage degree of the user. By adopting the scheme, the evaluation accuracy of the actual thirst degree of the user who is limited to eat water can be improved, and a decision basis is provided for accurately identifying the water shortage condition of the user, preventing dehydration complications and optimizing liquid management.

The invention discloses a water taking structure and a thermal power plant cold end system and relates to the technical field of thermal power generation. The water taking structure comprises a water taking piece and a shielding piece. Wherein a cavity is formed in the water taking piece; a water taking opening for communicating the cavity with the outside is formed in the side wall of the water taking piece; the shielding piece is arranged on the water taking piece and located on the inner side or the outer side of the water taking opening. The shielding piece is used for partially shielding the water intake; the bottom edge of the shielding piece and the water taking opening define a water taking channel facilitating external water flow to enter the cavity. By adopting the technical scheme, the cooling efficiency of the cold end system is improved, the fuel consumption is reduced, the cost is saved, and the pollutant emission is reduced.

The invention discloses a washing machine control method and device, a washing machine and a storage medium. The method comprises the steps that before the washing machine is controlled to start executing a water inlet program, target clothes in the washing machine are detected, and the water level needed for washing the target clothes is determined; receiving a setting instruction sent by the user, and determining a water level set by the user for the target clothes based on the setting instruction; if the water level set for the target clothes is higher than the required water level, a reminding message is sent to a user; if a confirmation message returned by the user in response to the reminding message is received, the water level set for the target clothes is changed into the required water level, the washing machine is controlled to start to execute a water inlet program, and the water inlet program is stopped until the current water level rises to the water level required by the target clothes. The user can be reminded to set a proper water level according to different clothes, so that the washing effect can be improved, and the problem that the washing effect is poor or water resources are wasted is avoided.