28 results about "Drainage rate" patented technology

The invention relates to the technical field of drainage control, in particular to an intelligent cerebrospinal fluid drainage rate and pressure cooperative control system and method. The system comprises a drainage pipeline module, a positioning adjustment module, an intelligent pump control module, a monitoring sensing module, a cooperative control module and a man-machine interaction module, and can be used for establishing a cerebrospinal fluid drainage channel and being connected with a drainage bag; a laser positioning pen fixed on the infusion rod emits a laser beam which is horizontal to a preset drainage plane and adjusts the hanging height; an infusion pump and a pump body controller drive cerebrospinal fluid to flow according to set parameters and generate flow velocity, flow and drainage time control signals, meanwhile, real-time intracranial pressure data, real-time flow and flow velocity data and physical sign data are collected, and a drainage height adjusting instruction or a pump control parameter adjusting instruction is generated; cooperative control over the drainage rate and the intracranial pressure is achieved, and system operation parameters, patient monitoring data and the drainage state are displayed. The drainage device can accurately control the drainage amount of cerebrospinal fluid.

The invention discloses a membrane bag sand levee slope settlement prediction method and system based on a neural network, and belongs to the technical field of prediction systems.The method comprises the steps that construction parameters, foundation monitoring data and geological exploration data of a membrane bag sand levee slope are obtained; performing feature fusion by analyzing correlation between the construction parameters and the compression amount of each foundation soil layer in the time dimension and between the foundation monitoring data and the compression amount of each foundation soil layer to obtain fusion time sequence features; and on the basis of the geological exploration data, using a settlement prediction model and fusion time sequence characteristics, predicting each compression amount by analyzing the pore drainage rate of each foundation soil layer, outputting a settlement prediction result of the membrane bag sand bank slope, identifying the settlement abnormal risk of the membrane bag sand bank slope, and outputting the settlement risk grade of a preset construction point. Therefore, by implementing the method and the device, the problem that the predicted total settlement amount of the film bag sand bank slope is not accurate enough due to the fact that the influence of the bank slope foundation structure on the settlement amount in the construction process is not completely considered in the prior art can be solved.

The invention relates to the technical field of drainage engineering, in particular to an intelligent water disaster emergency drainage device capable of automatically adjusting the drainage rate, the intelligent water disaster emergency drainage device comprises a box body and an adjusting system used for controlling the device to operate, the box body is communicated with a water inlet pipe and a plurality of water outlet pipes, and a filtering assembly used for intercepting silt is arranged in the box body. The filtering assembly comprises a partition plate fixedly connected to the inner wall of the box body, the water inlet pipe communicates below the partition plate, and the water outlet pipe communicates above the partition plate; the top of the partition plate communicates with a center screen and a plurality of movable screens. The joints of the water inlet pipe and the box body and the joints of the water outlet pipe and the box body communicate with electromagnetic valves. The adjusting system is further used for controlling opening and closing of the corresponding electromagnetic valves according to the needed water discharge amount. Through the integrated design of all the components, the silt treatment flow of intercepting, cleaning and discharging is formed; manual intervention is reduced, and screen maintenance is synchronously completed in the drainage process.

The application discloses a membrane-shaped structure with good anti-seepage effect and a construction method, and belongs to the technical field of anti-seepage of building engineering. The membrane-shaped structure with good anti-seepage effect is characterized in that a plurality of strip-shaped protrusions are arranged on the anti-seepage material, the plurality of strip-shaped protrusions protrude from the plane of the membrane-shaped material, and a plurality of drainage recess structures capable of limiting water or / and air and allowing water or / and air to flow are formed, so that the drainage rate and the air permeability effect can be effectively improved, rapid drainage or / and air ventilation is facilitated, the drainage or / and air ventilation effect is good, the structure is simple, practical, easy to construct, high in construction efficiency, and capable of accelerating water flow and enhancing the drainage effect, thereby effectively reducing water residue on the construction surface and avoiding environmental dampness; meanwhile, the structural strength of the membrane-shaped material can be effectively enhanced, the compression resistance and the top breaking resistance of the membrane-shaped material are improved, the rupture of the membrane-shaped material is effectively avoided, and the tensile resistance effect is good.

The utility model discloses a lawn base layer drainage structure, and belongs to the technical field of lawn drainage, the lawn base layer drainage structure comprises a lawn base layer body, a filter baffle is arranged in the lawn base layer body, the inner wall of the lawn base layer body fixedly communicates with a drainage pipeline, and the inner wall of the filter baffle is fixedly connected with a clamping ring; a communicating hose is slidably connected into the clamping ring, the bottom end of the communicating hose sequentially penetrates through the filtering baffle and the drainage pipeline and extends into the drainage pipeline, and the bottom end of the communicating hose fixedly communicates with an extending hose. According to the lawn base layer drainage structure, through cooperation of the lawn base layer main body, the filtering baffles, the clamping rings and the communicating hose, the drainage rate of the structure is increased, then through cooperation of the drainage pipeline, the extending hose, the buoyancy ball and the atmosphere communicating pipe, the atmosphere communicating pipe fixedly communicating with the buoyancy ball communicates with the communicating hose, and the drainage speed is increased; the extension hose is also communicated with the atmosphere in the drainage pipeline, and the function of accelerating drainage of the drainage structure is achieved.

The embodiment of the application provides a clothes dryer, comprising: a shell; a drum arranged in the shell; a water storage box, comprising a base water box; a drainage pump arranged in the base water box; a float switch fixed beside the drainage pump, comprising a floating state of a float ball and a falling state of the float ball; a controller connected with a timer, the drainage pump and the float switch respectively, the controller being configured to perform the following steps: when it is detected that the float switch is in the floating state of the float ball, the drainage pump is controlled to work and the timer is started; when it is detected that the float switch is switched from the floating state of the float ball to the falling state of the float ball, the timing duration of the timer and the drainage amount of the drainage pump are acquired; based on the drainage amount and the timing duration, the drainage rate of the drainage pump is calculated; based on the drainage rate and the to-be-drained amount, the residual drainage duration is determined; and the drainage pump is controlled to stop working after continuing to work for the residual drainage duration. The application can guarantee the drainage effect while eliminating the drainage noise.

A method for manufacturing a synthetic non-perforated drainable material is disclosed herein. Generally, the method includes injecting a coating material with air, applying the air-injected coating material to the first side of the material, and curing the air-injected material such that it adheres. Once cured, the material has a highly efficient drainage rate that remains consistent throughout the life of the material.

The utility model discloses a rainwater module side pressing structure which comprises a side pressing supporting unit, a side pressing supporting unit, a side pressing supporting unit and a side pressing supporting unit, the side pressing supporting unit comprises a side pressing frame, a plurality of transverse reinforcing ribs and a plurality of vertical reinforcing ribs, and the side pressing frame is divided into a plurality of rectangular compartments through the transverse reinforcing ribs and the vertical reinforcing ribs; the adjusting drainage unit comprises a main drainage cylinder embedded in the center of the lower portion of the side pressure frame and a fixed disc fixedly installed in the main drainage cylinder, a rotating disc is further rotationally connected in the main drainage cylinder in a sealed mode and abuts against the fixed disc in a sealed mode, and a rotating rod is fixedly connected to the position, close to the center of the rotating disc, of the fixed disc; the rotating disc is fixedly arranged on the rotating rod in a sleeving mode, and the fixed disc and the rotating disc are each provided with a plurality of sets of evenly-distributed water drainage openings. The drainage rate of the side pressure structure can be correspondingly adjusted according to the actual rainfall, and the defect that the personal safety of urban residents is threatened due to urban flood disasters caused by the fact that rainwater is difficult to drain in time is effectively overcome.

The invention relates to a reservoir desilting device for water conservancy and hydropower engineering, and relates to the technical field of desilting equipment, the reservoir desilting device comprises a connecting main frame and a grab bucket assembly, the bottom of the connecting main frame is connected with a driving machine body, the bottom of the driving machine body is provided with a walking mechanism, and the top of the driving machine body is connected with a control cabin; a lifting mechanism is connected between the driving machine body and the top of the connecting main frame; the water draining device can freely move and adjust the direction, sludge at the bottom of a reservoir can be pushed and shoveled to be concentrated to one position to be treated in the moving process, the height and the translation position of the grab bucket assembly can be freely adjusted, after sludge grabbing is completed, the water draining action can be rapidly completed, and the working efficiency is improved. Through double water filtering actions of rotary centrifugal water throwing and extrusion drainage, the drainage rate is higher, the drainage time is shortened, the drainage amount is larger, and the dehydration rate is higher.

The invention relates to the technical field of municipal engineering and water resource management, in particular to an integrated sponge city water storage and drainage system collaborative scheduling method, which comprises the steps of acquiring multi-source heterogeneous sensing data and extracting a state difference vector, constructing a dynamic response feature combination, judging facility regulation and control attributes, and revising output parameters to generate a scheduling instruction. And the matching control channel issues tasks, and evaluates system scheduling performance in combination with a response process. Structural aggregation is completed by extracting state difference vectors of various facilities and judging the change direction, main and auxiliary attributes are divided in combination with response characteristics, control output is dynamically revised according to the storage and drainage rate and the water level deviation, a control channel is matched to issue a scheduling instruction, and multi-facility linkage response is carried out in a unified rhythm. The regulation adaptability is evaluated in combination with the scheduling holding time and the state deviation, and regulation actions among facilities are promoted to be coordinated, the water level regulation rhythm is consistent, and the water resource distribution process is coordinated in a rapid change scene of the rain condition.

The utility model discloses a bidirectional pressurization vacuum preloading device which comprises a plurality of vertical drainage plates, a pipeline system, a vacuum pump and a booster pump, the pipeline system is connected with a support, the two ends of each vertical drainage plate are connected with drainage pipe assemblies, and the drainage pipe assemblies at the two ends are connected to the support in a sleeved mode and can slide along the support. The drainage pipe assemblies of the adjacent vertical drainage plates are sequentially connected to form a transverse drainage pipeline, the front end of the transverse drainage pipeline is connected to the pipeline system, the vacuum pump and the booster pump are connected to the pipeline system, and the vacuum pump and the booster pump alternately conduct vacuum pumping drainage and boosting work on the vertical drainage plates. The device performs vacuumizing and pressurizing alternate treatment on the upper and lower ends of the drainage plate simultaneously, so that the vacuum degrees of the upper and lower ends of the drainage plate are kept consistent, and the drainage rate is increased.

The invention discloses an anti-blocking drainage device for a deck on a ship, and relates to the technical field of marine equipment. The device comprises a water collecting frame which is arranged on a ship deck and used for collecting sewage, and further comprises a drainage box, a drainage pipe is arranged in the drainage box, and the drainage pipe is fixedly communicated with the drainage pipe; the driving assembly is arranged in the sewer pipe; the dredging unit comprises a filtering assembly, a cleaning assembly and a linkage assembly; the pressurizing unit comprises a synchronizing assembly, a reciprocating assembly and a pushing assembly. The sewage treatment device has the advantages that impurities in sewage can be effectively filtered and removed by adopting a multi-stage filtering mode, the impurities can be automatically cleaned and collected during drainage, the influence on the drainage efficiency of the sewage due to impurity accumulation can be avoided, the impurities can be prevented from entering a drainage pipe along with the sewage to cause blockage, and the sewage treatment device can be used for treating the sewage according to the sewage discharge capacity. When sewage is discharged, self-adaptive pressurized pushing is carried out, sewage pressurized discharging is achieved, and the water discharging speed is higher.

This invention discloses a method for determining the layout area of ​​gas drainage boreholes for layered mining of extra-thick coal seams, belonging to the field of coal mine gas control technology. The method includes: S1, obtaining overburden subsidence, penetration, porosity, fracture rate, fracture entropy, and fractal dimension through physical similarity simulation experiments, and determining the secondary evolution region and state of the overburden fracture field based on parameter mutations and thresholds; S2, establishing a rock fracture mechanics model based on the secondary evolution region, and calculating the vertical upper and lower interfaces for gas drainage through slippage instability and rotation instability conditions; S3, determining the layout area and parameters of the gas drainage boreholes by combining the lateral distribution of the secondary evolution region and the vertical drainage interface. This invention proposes the concept of secondary evolution region and a systematic discrimination method, achieving three-dimensional precise positioning of the drainage area, significantly improving gas drainage efficiency and mining safety. After application to the (9-15)08 working face of the Sulfur Gully Coal Mine in Xinjiang, the gas drainage rate reached 79%.

The application relates to a soft soil vibration drainage device with frequency conversion control and spiral opening blades, relates to the technical field of soft soil testing and foundation treatment, and comprises a rack assembly, a drainage assembly and a vibration assembly, the rack assembly comprises a rectangular frame and a top rack fixedly connected to the upper surface of the rectangular frame. The application is provided with the rack assembly, the electric push rod, the outer cylinder, the spiral blade, the drainage hole and the strip hole structure. In operation, the electric push rod drives the connecting plate and the connecting column to move downward, so that the outer cylinder and the spiral blade synchronously enter the soft soil layer. In the process that the spiral blade rotates and extrudes the soil body, the drainage hole can directly release the pore water pressure accumulated around the blade. The strip hole cooperates with the hollow rotating rod to form a through water inlet channel, cooperates with the limiting effect of the outer cylinder, and enables the internal water of the soil body to quickly gather and enter the drainage channel. The application fundamentally solves the problems that the traditional vibration drainage device is easy to form a high-pressure closed area and the drainage is not smooth, and significantly improves the soft soil drainage rate and the consolidation efficiency.

The present application belongs to the technical field of washing machines, and discloses a control method of a washing machine, which comprises an inner drum for independently containing water, a water drainage device for blocking the inner drum or opening the inner drum to drain water, and a water collecting device arranged at the bottom of the inner drum, wherein a water level detection device is arranged in the water collecting device; the control method comprises the following steps: S1, the washing machine receives a water drainage instruction; S2, the water drainage device performs a pre-drainage process of opening and closing; S3, the water drainage device is opened again and performs water drainage; and S4, the water drainage of the water drainage device is controlled according to the detection result of the water level detection device. In the water drainage stage, the water drainage device first performs the pre-drainage process of opening and closing, and the closing of the water drainage device in the pre-drainage process is not controlled by the detection result of the water level detection device, so that the phenomenon of overflow of the water collecting device caused by the high water level of the inner drum, the fast water drainage rate and the untimely feedback of the detection result is avoided.

The utility model relates to the technical field of urban drainage system design, in particular to a drainage channel capable of intercepting sewage. The drainage channel comprises a channel box body, a flow adjusting mechanism is arranged in the channel box body and comprises an adjusting floating block and a water passing plate, a plurality of water passing holes are formed in the water passing plate, and the adjusting floating block is connected with the channel box body in a sliding mode. The adjusting floating block is used for abutting against the surface of the water passing plate and blocking part of the water passing holes. The drainage speed of the drainage channel can be flexibly adjusted according to actual drainage requirements, and the using effect of the drainage channel is improved.

The invention discloses a basement drainage and monitoring integrated system, and belongs to the technical field of drainage and monitoring, the basement drainage and monitoring integrated system comprises an installation protection box, the top of the installation protection box is detachably provided with an installation frame, and the installation frame is internally provided with a diversion drainage assembly. According to the invention, by arranging the shunting drainage assembly, when the flow velocity of water flow is increased, a movable adjusting plate automatically moves downwards under the action of water pressure, an opening of a through groove is expanded, the drainage rate is dynamically improved, different flow requirements are met, and meanwhile, the movable adjusting plate drives an overturning closing plate to overturn through a driving rack and a transmission gear, so that accumulated water smoothly flows into the combiner box; the drainage efficiency is improved, the drainage speed of the drainage device is automatically controlled according to the water flow speed and flow, after drainage is finished, the movable adjusting plate and the turnover closing plate are reset, the drainage structure is in a relatively closed state, peculiar smell in a drainage pipeline is prevented from escaping, and it is guaranteed that the environment of a basement is relatively clean and tidy.

The invention relates to the technical field of drainage, in particular to a safety-based accumulated water urgent drainage well lid which comprises a conveying assembly and a rotating assembly, the conveying assembly comprises a supporting plate, a bent pipe, a first elastic part and a bearing plate, and the rotating assembly comprises a rotating shaft, a tray, a gear set, a moving rod and fan blades. In conventional rainstorm, accumulated water forms a vortex through the drainage channel to drive the fan blades to rotate, the movable rod pushes the bearing plate to slide down through gear transmission, and the bent pipe is opened to form siphon to accelerate drainage; when accumulated water is insufficient, the push block is clamped into the bearing plate limiting groove, the moving rod moves upwards to discharge gas in the bent pipe, and the elastic piece is matched with water gravity to push the bearing plate away to trigger siphon. The well lid does not need to be turned over manually, potential safety hazards of the road surface are eliminated, obstruction of vortexes to drainage is broken through the siphon effect, and the drainage rate is greatly increased.

The utility model discloses a groove cavity combined type drainage device, which relates to the technical field of medical instruments and comprises a drainage tube, a guide needle, a groove cavity tube joint assembly, a drainage connecting tube, a negative pressure drainage ball and a drainage bag. The guide needle is inserted into the drainage tube, one end of the drainage tube is provided with a groove cavity tube joint assembly, and the other end of the drainage tube is provided with a plug; the upper end of the groove cavity pipe connector assembly is further connected with a drainage connecting pipe, the other end of the drainage connecting pipe is connected with the inlet end of a negative pressure drainage ball, and the outlet end of the negative pressure drainage ball is connected with a drainage bag. According to the structure, the guide needle can be prevented from penetrating out of the catheter to puncture human organs, injection of liquid medicine or flushing liquid is facilitated, the liquid medicine or flushing liquid is not prone to being blocked by the human tissues and organs, and therefore the drainage rate can be improved.

The invention relates to the technical field of ascites drainage, and provides a digestive system department ascites drainage device which comprises a shell and a separation baffle vertically and fixedly connected to the inner bottom wall of the shell, and the interior of the shell is divided into a cavity liquid storage bin and an air exhaust bin through the separation baffle; two vertical guide grooves are fixedly formed in the side wall of the shell, and a rolling wheel is arranged between the two guide grooves in a sliding mode. A drainage tube is fixedly arranged on the side wall of the shell; an air exhaust sliding block slides in the air exhaust bin, the upper wall of the air exhaust sliding block is fixedly connected with a guide block, and the guide block and the rolling wheels are arranged in a transmission mode; a one-way exhaust valve is fixedly arranged on the upper wall of the shell. The extrusion degree of the drainage tube is changed by rolling the roller, so that the drainage rate is adjusted; when the roller rolls, the air exhaust sliding block is driven to move, air in the device is exhausted through the one-way exhaust valve, negative pressure is formed, and power is provided for ascites drainage; after drainage is completed, the device is inverted, ascites is discharged through the one-way exhaust valve, the air exhaust sliding block falls down, and ascites emptying can be assisted.

The invention discloses a method and system for evaluating the implementation effect of a foam drainage process, and the method comprises the steps: obtaining the drainage rate representing the drainage effect characteristics of the foam drainage process according to the real-time production data of a target well, and obtaining the pressure difference of an oil sleeve before foam drainage; based on the oil jacket pressure difference and the liquid drainage rate before foam drainage, the evaluation effect of the current foam drainage process is obtained through the foam drainage effect evaluation model. According to the invention, automatic online evaluation of the drainage and mining effect based on PCS data is realized, fine management is supported, the automation degree is high, the reliability is good, and the development of an intelligent foam drainage technology is promoted.

This utility model relates to the field of aquarium technology, specifically to an adjustable flow siphon pipe and aquarium. The adjustable flow siphon pipe includes an inverted U-shaped pipe and a flow screw for adjusting the diameter and area of ​​the siphon drain. The flow screw is threadedly connected to the inverted U-shaped pipe, with one end inside the U-shaped pipe and the other end outside. This utility model effectively reduces the space occupied by the pipe by combining the safety overflow pipe and the inverted U-shaped pipe. Simultaneously, it innovatively adds an adjustable flow screw structure, allowing the inverted U-shaped pipe to flexibly adjust the drainage rate according to the constant flow characteristics of the fixed-frequency water pump. This solves the problems of unstable siphoning, debris impact, or insufficient drainage caused by water pump pressure fluctuations in traditional fixed-diameter siphon pipes, achieving the dual goals of space optimization and improved adaptability while ensuring filtration efficiency.

The present application relates to the field of agricultural engineering and crop cultivation, and discloses a cultivation method for improving the waterlogging resistance of sugarcane, comprising the following steps: S1, obtaining field data by three-dimensional terrain scanning and soil parameter analysis, and dividing high-risk areas, medium-risk areas and low-risk areas; S2, arranging aeration column devices in the high-risk areas, and dynamically distributing the gas injection rate according to the risk level of the areas; S3, filling porous materials and mechanically loosening the soil; S4, constructing an optimization model, and dynamically adjusting the aeration rate and the drainage rate; S5, dynamically regulating the aeration and drainage equipment in different areas according to the output results of the optimization model; and S6, reevaluating the soil porosity and water content after the waterlogging damage ends, and carrying out soil replacement and aeration supplement for the damaged areas. Through the combination of soil porosity optimization and dynamic control, the soil aeration and drainage capacity are improved, and the root zone environment is more suitable for waterlogging stress.

The invention discloses a dynamic regulation and control system and method for soil moisture of a sports lawn based on active wicking, and relates to the technical field of sports field engineering. The system comprises a turf bed matrix structure, a ventilation drainage pipe network, a wicking flow guide assembly, a power ventilation device and an intelligent control system. The wicking flow guide assembly is flatly laid at the bottom of the root system layer, and the two ends of the wicking flow guide assembly extend downwards into the pipe network cavity and suspend to form a free evaporation section. The intelligent control system monitors the soil moisture content and the temperature and humidity in the pipe in real time, when the moisture content exceeds the standard, the pre-calibrated material mass transfer parameters are combined, the target wind speed in the pipe meeting the target drainage rate is inversely calculated through a built-in convective mass transfer model, the power ventilation device is driven to generate forced airflow in the pipe, and the drainage rate is increased. And continuous vapor pressure deficit and water potential gradient are maintained on the surface of the free evaporation section, so that lawn soil moisture is actively discharged in a phase change evaporation form. The limitation of gravity drainage is broken through, and precise and efficient regulation and control of the soil moisture of the sports lawn are achieved.

The application provides a hydrogen fuel cell system tail gas recovery device and a drainage method thereof, and the method comprises the following steps: step one, obtaining the air compressor speed and the air compressor current in the current period; step two, obtaining the vortex end through flow in the current period and the drainage rate in the current period according to the air compressor speed and the air compressor current, and calculating the accumulated water amount when the valve is closed in the last period; step three, calculating the drainage valve opening time in the current period according to the vortex end through flow in the current period, the drainage rate in the current period and the accumulated water amount when the valve is closed in the last period; step four, judging whether the drainage valve opening time in the current period meets the constraint condition; step five, if the drainage valve opening time in the current period meets the constraint condition, controlling the drainage valve according to the calculated drainage valve opening time in the current period; and step six, if the drainage valve opening time in the current period does not meet the constraint condition, continuously opening the drainage valve in the current period.

The invention discloses a performance test method for a soft soil foundation, belongs to the technical field of indoor soil tests, and aims to solve the problem that the drainage rate and the reinforcement effect cannot be measured at the same time in the prior art. The method comprises the steps that a loading unit is started, the loading unit applies and keeps loading force to a sample, and a displacement sensor collects displacement of the upper surface of the sample; calculating the consolidation settlement rate according to the displacement and displacement time of the upper surface of the sample, and calculating the drainage rate according to the drainage amount and drainage time; increasing the loading force of the loading unit, and carrying out graded loading on the sample until the sand cushion layer is damaged; the consolidation settlement rate and the drainage rate corresponding to each stage and the final bearing capacity of the sample are obtained; and calculating the average consolidation settlement rate and the average drainage rate according to the loading stage number, the consolidation settlement rate corresponding to each stage and the drainage rate corresponding to each stage. The device can be used for the performance test of the soft soil foundation.

The invention discloses an automatic measuring and monitoring system and method for postoperative drainage liquid of a patient, the system comprises an optical detection cabin and a weight measuring assembly arranged at the upper end of the optical detection cabin, a drainage tube penetrates through the weight measuring assembly, and a drainage bag is hung on the weight measuring assembly to measure the weight of the drainage bag; a monitoring module used for identifying the color of drainage liquid in the drainage bag and the turbidity of the drainage liquid is mounted in the optical detection cabin; the weight measuring assembly and the monitoring module are connected with a processing module, the processing module sends output data of the weight measuring assembly and the monitoring module to a cloud platform through a wireless communication module, the processing module is connected with an alarm, and the cloud platform processes the output data of the weight measuring assembly and sends a regulation and control instruction to the processing module. The alarm is regulated and controlled to give an alarm; according to the scheme, the postoperative drainage rate, color and turbidity are monitored in real time to indicate the postoperative health state of a patient.

To propose a technique for suppressing a decrease in a drainage rate of generated water in a fuel battery in which a throttle part having a small cross-sectional area is provided in a part of a gas flow path.SOLUTION: A fuel battery includes: a gas diffusion layer; a separator in contact with the gas diffusion layer and having a first concave part and a second concave part on a surface in contact with the gas diffusion layer; a first gas flow path surrounded by the first concave part and the gas diffusion layer; and a second gas flow path surrounded by the second concave part and the gas diffusion layer. The separator has a first wall surface of a wall surface of the first gas flow path and a second wall surface facing the first wall surface of the wall surface of the first gas flow path. A first protrusion part is provided on the first wall surface, a second protrusion part located downstream of the first protrusion part is provided on the second wall surface, a tip of the first protrusion part is disposed at a position closer to the second wall surface than a tip of the second protrusion part, and an interval between the first protrusion part and the second protrusion part is narrower than an interval between the first wall surface and the second wall surface.SELECTED DRAWING: Figure 3