146 results about "Drainage flow" patented technology

The invention discloses a cascade reservoir flood control water level combined application scheduling method and scheduling system, and relates to the technical field of cascade reservoir scheduling, and the method comprises the following steps: dividing into a plurality of sub-regions according to an administrative region, determining a sub-reservoir corresponding to each sub-region, and collecting the rainfall and historical flood discharge data; analyzing the water storage capacity of each sub-region at the moment corresponding to the historical data to form a training data set; constructing a flood season flood discharge prediction model, and obtaining the target flood discharge flowing into the sub-reservoir by using the prediction model; analyzing the water level change in the flood season according to the target flood discharge amount, and judging whether scheduling is needed; and if scheduling is needed, determining a drainage flow combination of each sub-reservoir, setting a constraint condition, and performing optimization through a multi-target genetic algorithm to obtain an optimal drainage flow scheme meeting constraints. According to the scheme, the scientificity, the accuracy and the intelligent level of combined dispatching of the cascade reservoirs are remarkably improved.

The invention provides a sewage treatment plant drainage scheduling method and system based on a fluid dynamic model, and relates to the technical field of sewage treatment and drainage scheduling. According to water quality and water quantity coupling historical data of a water inlet, water inlet load levels are divided, and a matching model of the water inlet load levels and drainage flow and frequency is built; collecting interception quantity and pipeline flow data at a water inlet grid, and performing association processing to obtain an interception influence coefficient reflecting the influence of grid interception on pipe network drainage; calculating an allowable drainage range of the pipe network by using a fluid dynamic model, calculating an optimal drainage parameter in the allowable range by combining a current load matching model and an interception influence coefficient, and identifying a hydraulic unbalance road section at the same time; and finally, the optimal parameter serves as a target, the valve opening degree of the unbalanced road section is adjusted, actual drainage of the pipe network can approach the target parameter, overall hydraulic balance is maintained, and drainage scheduling accuracy and pipe network stability are improved.

The application belongs to the technical field of drain valves, and discloses a time-delay valve core, a time-delay drain valve applying the same and a sanitary ware, wherein the time-delay valve core comprises: a body provided with a water inlet area, a water control flow channel and a water passing area, the water control flow channel being communicated between the water inlet area and the water passing area; a first adjusting member rotatably installed on the body, the water control flow channel being configured to change the water discharge flow to the water passing area with the rotation of the first adjusting member; and according to the water discharge requirement of a product, the water discharge flow of the water control flow channel is adjusted by using the first adjusting member, so that the adjustment of multiple water efficiency is realized, and the time-delay valve core is suitable for different water products. The whole structure is simple, the adjustment is convenient, and the applicability is wide.

A liquid leakage detection and drainage system comprises a water retaining strip (1) which is arranged on a floor in a fire extinguishing system concentration area and forms a closed liquid accumulation area with the floor; the two leakage detection assemblies (2) comprise the upper leakage detection assembly (2B) and the lower leakage detection assembly (2A) and are arranged on the inner wall of the water retaining strip (1) in the vertical direction and parallel to a floor, the lower leakage detection assembly (2A) is arranged at the position where the water retaining strip (1) makes contact with the floor, and the upper leakage detection assembly (2B) is arranged at the position, away from the floor by the height (H), of the water retaining strip (1); a drainage rod (5); and the liquid discharge pipe (3) is arranged between the liquid accumulation area and the water discharge rod (5). The system is capable of collecting leaked liquid by using a water retaining strip, performing leakage detection by using a leakage detection assembly, and providing a combined alarm scheme according to allowable direct drainage flow during flight.

The utility model relates to the technical field of municipal construction, and discloses a construction site rainfall rapid drainage structure which comprises a water storage frame body and further comprises a first filter screen arranged at the top of the water storage frame body. A brush roller is controlled to rotate to clean a second filter screen, silt in rainwater is effectively prevented from blocking meshes, the drainage flow speed is guaranteed, rapid drainage is achieved, the filtered and adsorbed rainwater is drained and collected through a drainage assembly, the water accumulation situation is reduced, and the practicability is high. Rainwater subjected to secondary filtration in the collecting tank, the first drainage tank and the second drainage tank is conveniently conveyed into the drainage box through the conveying pipe and the connecting pipe, fine silt, suspended solids and the like in the rainwater are adsorbed through the activated carbon box, the water quality is effectively improved, and recycling of the rainwater is promoted.

The invention relates to the field of overflow well pipeline drainage, and discloses an intelligent overflow well pipeline drainage system which comprises a pipe wall vibration monitoring module used for collecting a drainage main pipeline vibration signal, extracting vibration characteristics and generating an abnormal positioning report, and a sensing node response regulation and control module used for generating a pressure regulation and control strategy instruction. The shaft pressure gradient analysis module is used for obtaining time sequence data of a shaft axial pressure probe based on a pressure regulation and control strategy instruction and generating a pressure gradient map, the drainage flow planning module is used for obtaining shaft real-time water level data, calculating the water level change rate and generating a drainage instruction, and the valve scheduling module is used for scheduling the drainage flow according to the drainage instruction. And generating a valve control instruction set. According to the method, three-dimensional anomaly positioning is achieved through association of the pipeline vibration time-frequency characteristics and the sealing ring dielectric parameters, anomaly recognition is enhanced in combination with the pipe network topology and the pressure gradient matrix, the dynamic flow threshold value is generated through self-adaptive regulation and control of the sealing state, and the early warning precision and the regulation and control efficiency are improved.

The invention relates to the technical field of rainwater and sewage diversion, and discloses a municipal rainwater and sewage diversion device for sponge cities, which comprises a tank body, a water inlet is formed in the rear part of the tank body, a sewage pipe is fixedly connected to the inner wall of the tank body, a rainwater pipe is fixedly connected to the inner wall of the tank body, and a floating ball mechanism is arranged on the inner wall of the tank body. In the using process of the device, rainwater and sewage can be automatically separated and discharged, manual judgment or electrical signal control is not needed, sewage intercepting and discharging are completely achieved according to the actual rainfall, the total drainage capacity of a system can be instantly improved, the rainwater and sewage can be automatically filtered, and the rainwater and sewage can be automatically discharged in a separated mode without manual judgment or electrical signal control. The drainage bottleneck under the rain and flood peak value is broken through, the liquid level in the device is rapidly lowered, impurities on the surface of the filter plate can be scraped into the first chute box and slide into the second chute box, the drainage flow is recovered, and the rapid flood discharge capacity at the rain and flood peak value is ensured.

The utility model discloses a high-pressure fixed-discharge regulating valve which comprises a valve, a water outlet and a concave frame. A conduit A is arranged on one side of the valve, and a conduit B is arranged on the other side of the valve; a water outlet is formed in the guide pipe B, and a sealing steel ball is arranged at the top of the water outlet; the concave frame is arranged at the top of the guide pipe B. A pull rod is arranged at the top of the sealing steel ball. The movable plate is pushed by the air cylinder to slide in the cavity, when the inserting plate moves to a proper position, the inserting plate is inserted into the inserting groove of the pull rod, the pull rod is fixed to a specific position, positioning of the opening position of the sealing steel ball is achieved, and it can be guaranteed that the drainage flow is stabilized within a set range; through the combined design of the positioning plate, the scale marks and the positioning block, visual opening position information of the sealing steel ball is provided for an operator, the operator does not need to use additional complex equipment, adjustment is convenient and timely, and the working efficiency is improved; the sealing effect is effectively enhanced through the sealing ring on the surface of the sealing steel ball.

This invention discloses a safety assessment and practical design method for transformer emergency oil drainage, belonging to the field of power safety. Based on the dynamic analysis of emergency oil drainage in oil-immersed transformers, and considering the flow balance conditions of the transformer tank and emergency oil pit, this invention proposes a novel graphical method. This method utilizes the linear change in leakage flow rate of the transformer tank and the drainage flow rate of the emergency oil pit over time after a transformer explosion. It analyzes the flow balance time when the leakage and drainage flows are equal, and directly calculates the minimum required volume of the emergency oil pit using the area method of the flow diagram. Based on the ratio of the actual volume to the necessary volume of the emergency oil pit, the safety factor for emergency oil drainage is determined, thereby evaluating the drainage capacity of the emergency oil drainage system and the improvement design of the emergency oil pit. This invention avoids the tedious process of solving complex differential equations simultaneously in traditional methods, significantly reducing computational complexity and facilitating rapid mastery and application by engineering designers.

The application provides a safe and effective water seal bottle for closed drainage of thoracic cavity, a liquid storage cavity is connected with the right top end of a U-shaped negative pressure display, the middle part of a right tube is connected with a water seal cavity, the top end of a left tube is communicated with atmosphere, and a thoracic cavity effusion and gas drainage tube is arranged on the top of the liquid storage cavity; the top of the water seal cavity is sequentially connected with a drainage flow control valve, a negative pressure adjusting valve and a negative pressure generator; a first floating ball float rod in the liquid storage cavity penetrates through a first connecting tube upward and is fixed to an outer shell; a second floating ball is arranged on the upper end of the left tube, and a third floating ball is arranged on the top end of the right tube. The first connecting tube is provided with a one-way valve; the negative pressure display and the water seal cavity are filled with liquid, the liquid surface is higher than the right side of the negative pressure display when there is no negative pressure, the liquid is connected with the water seal cavity, and a slanting tube is arranged below the liquid surface of the water seal cavity; the application is injected with standard water when leaving the factory, liquid does not need to be injected into the water seal cavity and the negative pressure observation cavity when being used, and the application is provided with an over-negative pressure automatic protection function, a slanting tube observer and a flow adjusting valve, is convenient to move and carry, and prevents the liquid in the liquid storage cavity from flowing back.

The invention discloses a charging socket with a drainage structure, a charging system and a new energy automobile, and aims to solve the problems of insufficient rigidity of a dustproof cover, poor AC / DC adaptation stability, unstable low-temperature plugging force and easy generation of structural depression in the prior art. The charging socket with the drainage structure comprises a charging socket insulating shell, wherein the charging socket insulating shell comprises a direct current insulating seat and an alternating current insulating seat which can be independently detached; a drain hole is formed in the bottom of each terminal cavity of the alternating current insulating seat; independent drainage runners are arranged at one end, close to the drainage ports of the terminal cavities, of the alternating current insulating seat, and are communicated with the drainage holes in the bottoms of the terminal cavities in a one-to-one correspondence manner; the alternating current insulating seat and the direct current insulating seat are respectively provided with an alternating current insulator peripheral flow channel and a direct current insulator peripheral flow channel which are communicated with the independent drainage flow channel; and the bottom of the charging socket insulating shell is provided with a bottom drainage port which is communicated with the alternating current insulator peripheral flow channel and the direct current insulator peripheral flow channel.

The utility model discloses a drainage structure for road construction, and belongs to the technical field of drainage for road construction, a cleaning and scraping assembly is arranged on the front side of a filter screen for filtering and intercepting, when water flow passes through a drainage channel, the water flow contacts with an inclined plate, and then the inclined plate drives a cleaning and scraping plate and a rotating rod to rotate at the bottom of the inner wall of the drainage channel; and at the moment, the cleaning and scraping plate rotates under the impact of water flow and scrapes impurities on the surface of the filter screen to the leading-out groove, and the impurities flow into the socket for temporary storage. And meanwhile, impurities collected by the socket can be taken out from the side guide seat after the sealing plug board is closed at the guide-out groove and can be poured out and cleaned, and the whole cleaning process does not influence normal drainage and filtration.

The invention discloses a lateral ventricle drainage device capable of automatically adjusting pressure, which comprises a drainage tube capable of being mounted on a sliding block of a height adjusting frame, the height adjusting frame is existing and is equipped in hospitals, the sliding block is arranged in the middle of the height adjusting frame, scale marks are arranged on two sides of the height adjusting frame, and the sliding block can slide up and down to adjust the height. The pulley mechanism is installed on the sliding block and can generate elastic torsion when rotating, the pulley mechanism has the elastic torsion, the drainage tube bypasses the pulley mechanism from the upper side and then is divided into a right section and a left section, the right section is provided with an elastic expansion bag, and the left section is provided with a transparent dropper which is communicated with outside air and used for observing the dripping speed. The pulley mechanism has a clockwise torsion force to balance the gravity of the expansion bag, the tail end of the left section is connected with a drainage bag, when the drainage amount is increased, the expansion bag expands to drive the pulley mechanism to rotate clockwise, the dropper ascends to raise the position of the liquid outlet so as to reduce the drainage flow speed, and the flow speed adjustment is achieved.

The invention discloses a farmland underground pipe drainage multi-stage purification management method and system, relates to the field of farmland underground pipe drainage multi-stage purification management, is used for flexible management of flood peak flow and minimization of environmental risk, and comprises the following steps: monitoring the drainage flow of a farmland underground pipe in real time; according to the drainage flow, whether a drainage flood peak exists or not is recognized; under the condition that a drainage flood peak exists, overload drainage is determined according to the drainage flow and the hydraulic load of the purification equipment; the overloaded drained water flows back to the farmland underground to be subjected to permeation treatment or is guided to an ecological stagnant storage area to be subjected to stagnant storage treatment; and after the drainage flood peak is finished, reguiding the overloaded drainage subjected to the retention treatment or the permeation treatment to the purification equipment for purification treatment.

The utility model relates to air flotation equipment of a TMAH wastewater treatment system. The air flotation equipment comprises a pretreatment tank I, a neutralization reaction tank II and an air flotation tank III which are connected in sequence, a plurality of aeration holes are uniformly formed in a bottom plate of the air floatation tank III and are connected with an aeration pipe at the bottom of the air floatation tank III; the air floatation tank III is in a circular tank shape, and the drainage mechanism is arranged in the air floatation tank III and can revolve around the axis of the air floatation tank III; when the drainage mechanism rotates, water in the air floatation tank III can flow in the same direction, namely a pushing flow direction; the drainage mechanism is communicated with the neutralization reaction tank II; when being drained from the drainage mechanism, water can revolve and flow around the axis of the air floatation tank III, namely the drainage flow direction; the pushing flow direction is opposite to the drainage flow direction, so that the water in the air floatation tank III is kept relatively static. The device disclosed by the utility model has the beneficial effects that the flocculate can be continuously removed, and the flocculate can quickly float upwards, so that the flocculate removal effect is good.

The utility model relates to pipeline connection technical field and disclose a kind of building engineering water supply and drainage pipeline connection structure, including connecting structure, the upper surface of connecting structure is connected with rotating rod by waterproof bearing bearing, the top of rotating rod is fixedly installed with self-limiting hand wheel, the bottom of rotating rod is fixedly installed with circular adjusting plate, the inside of circular adjusting plate is equipped with drain, the inside wall of drain is equipped with mounting groove, this building engineering water supply and drainage pipeline connection structure, by the cooperation of rotating rod, self-limiting hand wheel and circular adjusting plate, staff rotates self-limiting hand wheel when using, and then drive rotating rod and circular adjusting plate to rotate, and then circular adjusting plate and the inner wall of connecting structure are in parallel state when flow is maximum, to play the role of convenient to adjust drainage flow, by the cooperation of sealing rubber ring, when using, the close adhesion of sealing rubber ring is utilized, to avoid discharging water leakage.

The application relates to the technical field of water supply and drainage flow monitoring, and discloses a self-adaptive water supply and drainage pipeline flow adjusting method and system, which comprises the following steps: identifying the positions of devices related to flow monitoring and adjustment through a three-dimensional diagram, obtaining a flow monitoring device position set and a flow adjusting device position set; converting collected flow simulation signals into digital signals and outputting the digital signals; training a self-adaptive flow adjusting model according to historical water supply and drainage pipeline flow data sets; inputting real-time water flow data into the self-adaptive flow adjusting model to obtain the supply and demand of water flow of the main line and branch line of the water supply and drainage pipeline; and adjusting the flow adjusting device according to the supply and demand to obtain the operation parameters of the adjusted flow adjusting device. The system comprises a signal output module, a supply and demand module and a parameter adjusting module. The application realizes dynamic adjustment and optimization of water supply and drainage flow, and enhances the self-adaptive ability and controllability of the system.

The utility model discloses an easy-to-clean floor drain with ultra-large drainage flow, which comprises a panel assembly, a filter unit is arranged on the panel assembly, a deodorization unit is arranged in the panel assembly, the panel assembly is connected with a pipeline assembly, a siphon flow dividing unit is arranged in the pipeline assembly, and the siphon flow dividing unit is connected with the panel assembly. The siphon flow dividing unit comprises a blocking part arranged in the middle area, a plurality of flow guiding plates are arranged on the periphery of the blocking part, a plurality of flow dividing gaps are formed between the flow guiding plates and the pipeline assembly, and the siphon flow dividing unit comprises a hollow part which is arranged below the blocking part and communicates with the flow dividing gaps. And the hollow part is communicated with a siphon narrow pipe. The easy-to-clean floor drain with the ultra-large drainage flow is provided, the ultra-large drainage flow can be achieved on the premise that smooth drainage and deodorization are achieved, siphoning can be formed in the drainage process, and the drainage efficiency is improved.

The utility model relates to the technical field of constructional engineering, and discloses a drainage flow guide structure for house constructional engineering, which comprises a mounting frame, a drainage groove is arranged at the bottom of the mounting frame, a collection box is arranged at the bottom of the mounting frame, a first filter screen is fixedly mounted on the inner wall of the mounting frame, a second filter screen is fixedly mounted on the inner wall of the drainage groove, and a drainage groove is formed in the inner wall of the second filter screen. An insertion block is fixedly installed on the outer wall of the drainage groove, and an insertion groove is formed in the top of the installation frame. The first pull rod is pulled, then the first pull rod drives the plug pin to move towards the limiting pin, when the top of the limiting pin is attached to the bottom of the plug pin, the limiting pin is extruded downwards through inclination of the limiting pin and the plug pin, then the limiting pin moves downwards, the plug pin can pass through the limiting pin, and when the plug pin passes through the limiting pin, the plug pin can pass through the limiting pin. A limiting pin is pushed out upwards through springback of a third spring, then the third spring fixes the position of a plug pin, at the moment, the fixing relation between the plug pin and an inserting block disappears, and the fixing relation of the drainage groove disappears.

The controllable drainage pipeline based on water supply and drainage equipment production comprises a bottom box, a through hole is formed in the outer wall of one side of the bottom box, a water inlet pipe is fixedly connected to the inner wall of the through hole, and a top box is installed over the bottom box; when a rotating disc rotates, a third threaded rod rotates along with the rotating disc, at the moment, an L-shaped sliding rod can move back and forth on the outer wall of the rotating third threaded rod, meanwhile, a blocking ring also moves back and forth along with the rotating third threaded rod, when the drainage flow is normal or small, production water can be drained through an inner drainage pipe, and when the drainage flow is large, the rotating disc is rotated, and the production water can be drained. The two sets of plugging rings are moved out of the inner wall of the outer drainage pipe and the inner wall of the middle drainage pipe respectively, at the moment, water flow can automatically flow into the outer drainage pipe and the middle drainage pipe, and therefore the drainage efficiency is improved. Therefore, the surfaces of the outer drainage pipe, the middle drainage pipe and the inner drainage pipe are prevented from being broken.

This utility model discloses an adjustable drain valve, belonging to the field of drain valve technology. It includes an active mounting ring and a passive mounting ring, with a connecting assembly between them. The connecting assembly includes an internally threaded sleeve and a connecting bolt. The internally threaded sleeve is fixedly mounted on the passive mounting ring, and the connecting bolt is threadedly connected to the internally threaded sleeve. A fixed adjusting plate is provided inside both the active and passive mounting rings. An adjusting assembly is installed on one side of each of the active and passive mounting rings, extending to the outside of both rings. Limiting holes are evenly distributed on both outer sides of the active and passive mounting rings. The degree of overlap of the water channels on the fixed and movable adjusting plates can be adjusted using the adjusting assembly, thereby adjusting the drainage flow rate. The active and passive mounting rings can be disassembled for easy cleaning by the user, making it convenient for use.

The utility model relates to the technical field of municipal engineering, and discloses a rainwater circulation pipeline suitable for sponge cities, which comprises a circulation mechanism, an adjusting mechanism and a sensing mechanism, the circulation mechanism penetrates through the adjusting mechanism, and the sensing mechanism is located at the upper end of the adjusting mechanism. The circulation mechanism comprises a water inlet pipe, a water inlet, a pipe joint and a flow dividing pipe, the water inlet is formed in the upper end of the water inlet pipe, the pipe joint is fixedly installed at the rear end of the water inlet pipe, and the flow dividing pipe is fixedly installed at the rear end of the pipe joint; the problems that due to the fact that simple wide-opening drainage flow cannot be adjusted, downstream or low-terrain areas in cities can overflow rapidly, and economic losses are caused are solved, by arranging a partition plate, an electric push rod can control the flow of water in a pipeline by pushing and pulling the partition plate, by arranging a flow dividing pipe of a Y-shaped structure, the device can achieve flow dividing operation, and the flow dividing efficiency is improved. Therefore, corresponding regulation and control can be carried out according to the local rainfall.

The invention discloses a method and a related device for probing and tracing a sewage draining exit into a river, and relates to the technical field of sewage treatment, and the method comprises the steps: obtaining a video shot when an unmanned aerial vehicle flies along a target water area, recognizing the video, determining the sewage draining exit into the river, and for each sewage draining exit into the river, determining the source of the sewage draining exit into the river; the method comprises the following steps: acquiring the position, drainage flow, pH value and pollutant concentration of a river-entering drain outlet, determining whether drainage of the river-entering drain outlet is sewage or not based on the pH value and pollutant concentration of the river-entering drain outlet, and calculating the pollutant load of the river-entering drain outlet based on the drainage flow and pollutant concentration of the river-entering drain outlet. The method comprises the following steps: acquiring a fluorescence analysis result and an isotope analysis result obtained by performing three-dimensional fluorescence analysis and isotope analysis on a sampled water sample of a target water area and a sampled water sample of a river sewage draining exit, tracing based on the fluorescence analysis result, and tracing based on the isotope analysis result; according to the invention, probing and tracing of the sewage draining exit entering the river can be efficiently and accurately completed.

The invention relates to the field of water conservancy and hydropower facilities, in particular to a design method of a gully water and debris flow prevention and control system for achieving gully water and debris flow cooperative prevention and control between adjacent branch gully, and the design method comprises the following steps: a, determining a building level, a flood standard and an emergency flood drainage standard; b, determining a first water inlet and a second water inlet; c, the flood flow and the total solid matter amount of the branch ditches and the emergency flood drainage flow of the corresponding emergency flood drainage channel are determined; d, determining the scale of a second retaining dam and the scale of a second drainage tunnel; e, determining the scale of a second blocking dam; f, determining the scale of a first retaining dam and the scale of a first drainage tunnel; g, determining spatial arrangement positions of a first emergency flood drainage channel of the first branch ditch, a second emergency flood drainage channel of the second branch ditch and a confluence drainage channel; determining the scale of the first emergency flood drainage channel, the scale of the second emergency flood drainage channel and the scale of the confluence drainage channel. The method is suitable for the channel engineering of the hydropower station in the alpine and canyon region.

This invention provides a three-dimensional flow field effect condensate trap, comprising: a housing with a storage chamber inside; a nozzle disc dividing the storage chamber into an upper separation chamber and a lower drainage chamber; a Venturi nozzle, the straight end of which connects to the separation chamber, and the tapered end of which connects to the drainage chamber; and an auxiliary drainage component configured to increase the drainage flow rate when the water level in the separation chamber exceeds a set threshold. The beneficial effects of this invention are: steam mixed with condensate enters the separation chamber from the inlet pipe, and the condensate enters the drainage chamber through the Venturi nozzle. Under the Venturi effect, the condensate evaporates rapidly, causing an increase in air pressure within the drainage chamber. Under the pressure within the drainage chamber, the condensate flows to an external pipeline for recovery. When system fluctuations occur and the condensate level in the separation chamber exceeds the set threshold, the auxiliary drainage component assists in drainage, increasing the condensate trap's ability to cope with system fluctuations and ensuring the normal operation of the system.

The invention discloses an intelligent sensing and automatic control device for drainage flow of an underground pipe in a northeast black soil area. The intelligent sensing and automatic control device comprises a PE corrugated pipe, a soil entropy condition sensor, an underground pipe lifting device, an electric push rod, a lifting rod, a rope, a fixing column, a water collecting bucket, a water collecting tank, a flow dividing channel, an HCSR04 ultrasonic distance measuring instrument, an ESP32 development board, a photovoltaic panel and a control button. The concealed conduit lifting device is composed of an electric push rod, a lifting rod and a rope, and the output end of the electric push rod is fixedly connected with the lifting rod; the intelligent sensing and automatic control device for the drainage flow of the underground pipe in the northeast black soil area is designed and installed at the lowest-lying position of a farmland, the ditch edge or the periphery of a water collecting pool, the automatic dredging and regulating functions of underground pipe drainage can be achieved, and the automatic control device is suitable for different requirements for soil moisture of different crops in different growth periods. The device can dynamically adjust the drainage flow through soil moisture content, underground water level and concealed conduit drainage data collected in real time, and accurate regulation and control of soil moisture are achieved.

The utility model relates to flow-controllable water supply equipment, which belongs to the technical field of water supply equipment and comprises an equipment base, a flow stabilizing tank, four groups of water supply pumps, a pressure relief box, a water supply pipe and a filter plate, the flow stabilizing tank, the water supply pumps and the pressure relief box are mounted at the top of the equipment base, and the four groups of water supply pumps are fixedly communicated with a water inlet pipe. The water inlet pipe is communicated with the flow stabilizing tank, the flow stabilizing tank is fixedly communicated with a tap water pipe, the four groups of water supply pumps are fixedly communicated with a main drainage pipe, the main drainage pipe is communicated with the pressure relief box, the multiple groups of water supply pipes are fixedly communicated with the pressure relief box, the water supply pipes are fixedly communicated with a flow regulating valve and a flow monitoring meter, and the pressure relief box is fixedly communicated with a pressure relief pipe. The adjustable water storage tank is arranged, the drainage flow can be adjusted by opening and closing according to needs, the pressure relief valve is arranged, redundant water can be conveyed back into the water tank of the water supply equipment when the pressure of the water pipe is large, and therefore the purpose of adjusting the water supply flow is achieved.

The invention discloses a high-low pressure heater drainage system which comprises a plurality of high-low pressure heaters provided with drainage outlets. The connecting pipeline is used for communicating all the high-low pressure heaters with one another; wherein the connecting pipeline is provided with a main pipeline communicated with the drainage outlet and a bypass connected with the main pipeline in parallel, the main pipeline is provided with a pneumatic control valve, and the bypass is provided with a gate valve. According to the drainage system of the high-low pressure heater, by arranging a parallel redundant loop of the main pipeline pneumatic adjusting valve and the bypass gate valve, the pneumatic adjusting valve automatically adjusts drainage flow according to signals in the normal state during use, and the control precision is obviously improved; compared with a common gate valve or a two-phase flow valve and the like, the drainage control precision is improved, and unit shutdown caused by faults due to the fact that a single-pipeline single-valve system is free of redundancy is avoided.

The utility model discloses a flow-adjustable drainage pipeline, which relates to the technical field of drainage pipelines, and adopts the technical scheme that the flow-adjustable drainage pipeline comprises a drainage pipeline body, a lower shell is fixedly arranged on one side of the drainage pipeline body, an adjusting component is arranged in the drainage pipeline body, and a filtering component is arranged in the lower shell; the adjusting assembly comprises an inner supporting block, the inner supporting block is fixedly arranged in the drainage pipeline body, a threaded rod is connected into the inner supporting block through a bearing, the screwing directions of threads on the two sides of the outer portion of the threaded rod are opposite, connecting plates are arranged on the two sides of the outer portion of the threaded rod through threads in a sleeving mode, and two sliding rods are fixedly arranged on one sides of the connecting plates and extend out of the inner supporting block. The drainage device has the advantages that the drainage flow of the drainage pipeline can be conveniently adjusted through the arrangement of the adjusting assembly, different drainage requirements are met, impurities in water can be filtered out through the arrangement of the filtering assembly, and the drainage quality is improved.

This utility model provides a municipal road water supply and drainage device, belonging to the field of municipal road drainage technology. The device includes a channel body and a drainage and debris-blocking mechanism. The inner side of the channel body has a channel cavity, and a channel cover is installed on the top of the channel body. A debris-blocking frame is movably connected inside the channel cavity. A debris-blocking net is movably connected to the left side of the debris-blocking frame. A connecting seat is fixedly connected to the left side of the top of the inner wall of the debris-blocking frame, and a connecting head is fixedly connected to the right side of the top of the inner wall of the debris-blocking frame. A connecting snap-fit ​​mechanism is located on the left side of the bottom of the connecting seat. By setting up the drainage and debris-blocking mechanism, impurities in the water entering the channel body can be filtered and blocked, separating the water from the impurities and separating impurities between different channels. This prevents impurities from flowing with the water and accumulating at the confluence of channels, thus improving the impurity blocking and separation effect and drainage flow of the channel body.