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100 results about "Controlled drainage" patented technology

Pressure-controlled drainage gas production method and system for coal-bed gas well

The invention discloses a pressure-controlled drainage gas production method and system for a coal-bed gas well. The pressure-controlled drainage gas production method comprises the steps that drainage is conducted through the first daily drainage amount, wherein the first daily drainage amount meets the eliminating demand for production interference objects in a coal bed; and a pressure-supplementing medium is injected while drainage is conducted, and the downhole flow pressure daily drop amount is maintained as a first differential pressure value so as to avoid retracting and closing of pores and cracks in the coal bed. According to the pressure-controlled drainage gas production method for the coal-bed gas well, the drainage speed at the drainage state can be conveniently determined, the eliminating demands for drilling and completion fluids, pulverized coal and slack coal in the coal bed can be met, and meanwhile, retracting and closing of the pores and the cracks in the coal bed can also be avoided; and compared with the prior art, the pressure-controlled drainage gas production method is simple in process, the production efficiency of the coal-bed gas well can be greatly improved, and quite high practical value and popularization value are achieved.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Controllable roof drainage method for multiple coal faces in monocline structure area

The invention discloses a control roof drainage method for multiple coal faces in a monocline structure area, which combines the characteristic that the water level of a monocline structure is gradually increased along with the burial depth, and adopts a layered and graded control drainage strategy by utilizing the burial depth difference of the working faces, and comprises the following steps of: firstly, controlling the drainage water level at a preset water head threshold value; ensuring that the water level is lower than the elevation of the bottom plate of the first mined shallow working surface, and meeting the safe mining condition of the shallow working surface; and after mining of the shallow working face is completed, the drainage amount of the drill hole is gradually increased, the drainage level is reduced, the mining requirement of the next deep working face is met, and sequential mining of multiple working faces from shallow to deep is achieved in the same manner. According to the method, the drainage drill holes are formed in the low-position roadway at a time, roof water disaster prevention and control of all the working faces are achieved in order in a controlled drainage mode, the dynamic water inflow of the working faces can be reduced, and remarkable economic, safe and environmental benefits are achieved.
Owner:CHINA UNIV OF MINING & TECH +3

Drainage recovery control method and system for multi-source heat supply network

The embodiment of the invention provides a drainage recovery control method and system for a multi-source heat supply network. The method comprises the steps that data acquisition equipment is installed on all drainage pipelines before entering a drainage tank of the heat supply network; acquiring temperature parameters, flow parameters and conductivity parameters of each path of hydrophobic water in real time through the data acquisition equipment; and based on the temperature parameter, the flow parameter and the conductivity parameter, comprehensive state judgment of hydrophobic recovery treatment is carried out, and based on a judgment result, dynamic pollution discharge control is carried out. According to the embodiment of the invention, the blow-down valve is opened in a targeted manner through real-time acquisition and layered judgment, so that the mixed hydrophobic parameters are stabilized in a threshold range, and the problem that traditional static control cannot adapt to multi-source parameter differences is solved; and on the basis that pollution discharge is triggered only when parameters exceed the standard, qualified drained water is prevented from being discharged by mistake, and recoverable water resources and waste heat resources are reserved to the maximum extent.
Owner:XIAN THERMAL POWER RES INST CO LTD

Drainage pipe network multi-modal data analysis method for urban inland inundation prevention and control

The invention discloses a drainage pipe network multi-modal data analysis method for urban inland inundation prevention and control, and belongs to the technical field of urban inland inundation prevention and control. According to the method, satellite remote sensing surface ponding images, drainage pipe network liquid levels, regional meteorology, public ponding crowdsourcing information and terrain elevation and pipe network attribute data are collected and integrated into a multi-dimensional original data set; after cleaning and standardization processing, mining waterlogging associated features by using an adaptation algorithm, and establishing a coupling relation model; waterlogging risk reasoning is carried out based on the model, and graded early warning information and pump station scheduling, pipe network dredging and emergency dredging path schemes are generated; and performing visual analysis on a result, and dynamically optimizing a model and a scheme according to real-time updated data. According to the scheme, waterlogging influence factors are comprehensively covered, the accuracy of risk assessment and prevention and control decision is improved, dynamic changes of waterlogging are adapted, and the initiative and systematicness of urban waterlogging prevention and control are enhanced.
Owner:COLLEGE OF MOBILE TELECOMM CHONGQING UNIV OF POSTS & TELECOMM

A gas conduit stopper

ActiveCN224497941UWater stopAutomatic control
The utility model discloses a kind of gas pipeline water stop, it is related to gas pipeline conveying equipment technical field, comprising: water stop body and gas-liquid separation mechanism and free-floating ball type trap, gas-liquid separation mechanism is set in water stop body, to form in water stop body top air passage and bottom drain passage, air passage is communicated with gas outlet pipe, drain pipe is communicated with drain passage;Free-floating ball type trap is installed in the bottom of drain pipe, to form liquid storage cavity in drain pipe, after the water of liquid storage cavity exceeds design height, drive free-floating ball type trap's float ball to rise and then open free-floating ball type trap and discharge water exceeding design height from the drain port of free-floating ball type trap, without manual intervention, can automatically control drainage according to the change of water level in liquid storage cavity, improve the timeliness and efficiency of drainage, ensure that ponding in pipeline system does not too much affect operation.
Owner:POWER CHINA KUNMING ENG CORP LTD

A method for ecological regulation of drainage to reduce salinity and alkalinity through coordinated irrigation and drainage

This invention discloses a controlled drainage ecological regulation method for synergistic irrigation and drainage to reduce salinity and alkalinity, belonging to the field of soil remediation technology. The method includes: a soaking and dissolving stage, where, with the drainage outlet closed, low-flow irrigation is performed at the farthest point from the drainage ditch, allowing a large amount of irrigation water to enter the small pores of the soil profile and soak and dissolve salts; a diffusion and dispersion stage, where the drainage outlet is raised, and with the outlet height lower than the field surface, large-flow irrigation is performed evenly, filling all pores of the soil profile with irrigation water and enhancing the diffusion and dispersion of salts; a convection desalination stage, where the drainage outlet is opened, and with the outlet depth level with the drainage ditch depth, saline water is evenly discharged from the soil; and a water-saving and emission-reduction stage, where the drainage outlet depth is lower than the crop root zone, breaking the connectivity of small pores and preventing soil salts from moving upwards during crop growth. This synergistic irrigation and drainage achieves the three major goals of salt control, water conservation, and emission reduction.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES

Magnetic type drainage pipeline installation auxiliary device capable of achieving rapid butt joint and positioning

The utility model discloses a magnetic type drainage pipeline installation auxiliary device capable of achieving rapid butt joint and positioning. The magnetic type drainage pipeline installation auxiliary device is provided with an auxiliary support used for positioning and supporting. Comprising a positioning assembly which is installed on the right side of the lower surface of the auxiliary support, the left side of the inner surface of the auxiliary support is rotationally connected with a threaded rod, the outer surface of the threaded rod is rotationally connected with a conveying belt, meanwhile, the outer surface of the threaded rod is in threaded connection with a moving part, and the moving part is provided with a limiting conveying mechanism. According to the magnetic type drainage pipeline installation auxiliary device capable of achieving rapid butt joint positioning, the auxiliary support facilitating positioning and supporting is arranged, a second drainage pipe which is already positioned and assembled is limited and clamped, a first drainage pipe is clamped in cooperation with a movable clamping jaw, and the first drainage pipe is conveyed after being clamped; and an electromagnet in the positioning claw is matched to be powered on, and magnetic attraction positioning work is carried out on the position of a magnetic attraction piece in the first water drainage pipe.
Owner:HANGZHOU CHENHANG CONSTR CO LTD

Air conditioner

This application discloses an air conditioner, belonging to the field of air handling technology. The air conditioner includes a heat exchanger, a wetted membrane, a water supply system, a drip tray, a drainage system, and a controller. The water supply system supplies water to the wetted membrane and includes a water supply solenoid valve for opening or closing the system. The drip tray is located below the heat exchanger and the wetted membrane, with the bottom of the wetted membrane higher than the bottom of the heat exchanger. The drainage system includes a drain pump and a water level detection module. The controller is configured to: in dehumidification mode, control the drain pump to drain water from the drip tray; when the water level in the drip tray reaches the minimum water level detected by the water level detection module, output an alarm signal indicating a drainage system fault; in humidification mode, control the water supply solenoid valve to open; when the water level in the drip tray reaches the level detected by the water level detection module (higher than the bottom of the wetted membrane), control the water supply solenoid valve to close, thereby shutting off the water supply system's supply to the wetted membrane. This air conditioner can reduce system complexity and cost.
Owner:QINGDAO HISENSE HITACHI AIR CONDITIONING SYST

Plant road rainwater drainage monitoring device

The utility model belongs to the technical field of sewage discharge, and discloses a plant road rainwater discharge monitoring device which comprises a plurality of sewer wells distributed on the road surface of a plant road, a rainwater pipeline arranged underground, a drainage pipe communicated with a river, a water storage pond, a controller and a PH online detector. The rainwater pipeline is communicated with the water storage pond, a water outlet is formed in the lower portion of one side of the water storage pond and connected with a water drainage pipe, an electric valve used for controlling the water drainage amount is arranged at the position of the water outlet, a detection probe of the PH online detector is arranged at the bottom of the inner side of the water storage pond, and the PH online detector and the electric valve are both electrically connected with the controller. Rainwater in the water storage pond is monitored in real time through the PH online detector, the PH online detector and the electric valve are matched to control opening and closing of the electric valve, the safety of rainwater drainage can be effectively guaranteed through linkage of the PH online detector and the electric valve, the ecological environment of a river is prevented from being affected, and the environmental protection risk is reduced.
Owner:JIANGSU YANGHE WINERY CO LTD SIYANG BRANCH

Water quality monitoring method for water supply system, water supply system, and refrigeration apparatus

The present application relates to the technical field of water quality monitoring for water supply systems, and provides a water quality monitoring method for a water supply system, a water supply system, and a refrigeration apparatus. The water quality monitoring method for a water supply system includes: controlling to convey water to a water outlet pipe of the water supply system; obtaining a water quality parameter in the water outlet pipe; judging whether the water quality parameter meets a standard; if the water quality parameter meets the standard, ending the monitoring; if the water quality parameter does not meet the standard, proceeding to a next operation; controlling to drain the water in the water supply system; and repeating the above obtaining operation, judging operation, and draining operation, until the water quality parameter meets the standard. Through this method, the water quality parameter in the water outlet pipe may be monitored in real time, and it is controlled to drain the water in the water supply system when the water quality parameter exceeds the standard, thereby avoiding the breeding and deposition of organic matter. Moreover, this method may avoid drainage and flushing of the water supply system after a long period of inactivity, reduce operational difficulties and improve user convenience.
Owner:HEFEI MIDEA REFRIGERATOR CO LTD +2

Antifreezing method for cooling water pipe of cooling wall of HyCROF furnace

The invention belongs to the technical field of cooling water pipe anti-freezing, and particularly discloses a HyCROF furnace cooling wall cooling water pipe anti-freezing method which comprises the following steps that a main valve of a cooling water pipe is closed, pressure is released to a target pressure range, after natural drainage is conducted in sequence, a PLC controls compressed air to purge a main pipeline of the cooling water pipe, and then the main pipeline of the cooling water pipe is closed; the branch drain valves with qualified humidity are closed according to the humidity of the outlets of the drain valves before secondary purging, then the furnace bottom and the lower area of the furnace body are purged, the PLC controls compressed air to accurately purge the tail end during third purging, and the PLC judges whether purging is qualified or not according to the humidity of the outlets of the drain valves after purging; the sequence, pressure and time of drainage and purging are accurately controlled through a PLC program, the randomness of manual operation is reduced, it is ensured that the purging effect is highly uniform and reliable, and the working efficiency and consistency are improved; the problems that a traditional manual purging method is uneven in purging effect and low in operation efficiency are solved.
Owner:XINJIANG BAYI IRON & STEEL CO LTD

Drainage bag capable of controlling drainage amount

The utility model discloses a drainage bag capable of controlling drainage volume, which comprises an outer frame, a first vertical guide rail, a second vertical guide rail, a telescopic drainage bag and an adjusting component, one end of the adjusting component is in sliding connection with the first vertical guide rail, and the other end of the adjusting component is in sliding connection with the second vertical guide rail. The first vertical guide rail and the second vertical guide rail are each provided with a plurality of adjusting holes arranged at intervals in the vertical direction, the adjusting holes are matched with the adjusting assembly in a clamped mode, the upper end of the telescopic drainage bag is connected with a drainage tube, and the drainage tube is rotationally connected with the outer frame. The lower end of the telescopic drainage bag is fixedly connected with the adjusting assembly; according to the utility model, the drainage amount can be adjusted without an electronic device, the possibility that the capacity cannot be adjusted due to failure of the electronic device is avoided, the adjusting mode is simple and quick, the manufacturing cost is low, and the device is suitable for clinical popularization and application.
Owner:GUANGDONG GENERAL HOSPITAL

A method, system, device and medium for controlling drainage of a dehumidifier

This invention discloses a drainage control method, system, device, and storage medium for a dehumidifier. The method includes: acquiring first and second water level information of a water tray; acquiring the cumulative running time and cumulative start-stop count of a water pump module; generating a dynamic compensation coefficient based on the cumulative running time and cumulative start-stop count; and controlling the water pump module to drain water from the water tray based on the first water level information, the second water level information, and the dynamic compensation coefficient, so that the real-time water level of the water tray is at a preset safe water level. Drainage is performed after dual liquid level detection by the first and second water level detection units, which can reduce the frequency of water pump start-stop and improve pump life. The adaptive attenuation compensation of the dynamic compensation coefficient can reduce insufficient drainage and overflow caused by the decrease in drainage capacity after long-term use of the pump.
Owner:ZHUHAI SAMYOU ENVIRONMENTAL TECH CO LTD

An ecological drainage gate

This application provides an ecological drainage gate for water control in modern farmland, comprising: a PE gate and its outer frame for controlling drainage volume; a concrete outer frame for fixing the gate, including a base plate, a back plate, and two fan-shaped side plates; a short outlet pipe at a certain angle installed on the back plate for reliable installation; a filter screen installed on the gate and fixed to the gate structure for filtering floating impurities in the water; and a mudguard installed at the front of the base plate to prevent mud from being carried into the ditch. The advantages of this application are: the use of a filter screen to intercept floating impurities in the water, preventing them from flowing into the ditch; the installation of a mudguard to intercept silt; the ability to open the PE drainage gate to an ideal height with precise control of drainage volume; and the pre-installed inclined outlet pipe connected to the drainage pipe with silicone sealant, eliminating the problem of leakage at the joint.
Owner:JIAXING WUFENG CEMENT PROD MFG CO LTD

Air conditioner control method and device, storage medium and electronic equipment

The invention discloses an air conditioner control method and device, a storage medium and electronic equipment, and relates to the technical field of air conditioners, an air conditioner comprises an evaporator and a drainage pump, and the method comprises the steps that the estimated condensation state of the evaporator is determined according to air conditioner operation parameter values; correcting the initial output power of the drainage pump according to the pre-estimated condensation state to obtain corrected output power; and controlling the drainage pump to operate at the corrected output power. The output power of the draining pump can be reasonably controlled, and energy consumption is reduced.
Owner:GUANGDONG TCL INTELLIGENT HEATING & VENTILATING EQUIP CO LTD

Water discharge control system

To change setting of control related to water discharge and stop by operation of a user.SOLUTION: A water spout control system according to an embodiment includes a water discharger, a sensor configured to detect at least a water discharge area, a controller configured to control a water discharge state from the water discharger based on a detection result of the sensor and initial setting information related to control of the water discharge state from the water discharger, an input device configured to receive an operation input from a user and communicably connected to the controller, and a setting changer configured to change a setting from an initial setting indicated by the initial setting information based on an input result of the input device.SELECTED DRAWING: Figure 1
Owner:TOTO LTD

Visual water level gauge and control method for automatic pumping control of transformer substation

This invention discloses a visual water level gauge for automatic pumping control in substations, comprising a radar measurement unit, an auxiliary visual verification unit, a drainage execution unit, and a water level control unit. The radar measurement unit is fixed below a manhole cover with a fixing component and its beam points downwards towards the water surface. The auxiliary visual verification unit includes a camera and an electronic water level gauge. The electronic water level gauge is mounted on the trench wall on the same side as the radar measurement unit, and the camera is positioned above the radar measurement unit and aligned with the electronic water level gauge, so that their observation angles are the same. The drainage execution unit is located at the bottom of the cable trench sump for draining accumulated water. The water level control unit is located in an external control box and is electrically connected to the radar measurement unit, the auxiliary visual verification unit, and the drainage execution unit, and can control the start and stop of the drainage execution unit. A control method is also provided. This invention has the advantages of simple structure, high reliability, high control accuracy, and high degree of intelligence.
Owner:STATE GRID HUNAN ELECTRIC POWER COMPANY LIMITED +1

Water guide device, gutter channel assembly and vehicle

The embodiment of the utility model discloses a water guide device, a gutter channel assembly and a vehicle, and relates to the technical field of vehicle parts. The gutter channel assembly can comprise the drainage pipe and the drainage baffle, and the drainage baffle is arranged at the drainage end of the drainage pipe to seal the gutter channel body in the gutter channel assembly, so that dust at the bottom of a vehicle or abnormal odor in a cabin can be prevented from entering a passenger compartment along the gutter channel body; and the driving / riding experience feeling of the user is improved. Moreover, the drainage baffle automatically seals the drainage pipe under the action of gravity, when water to be drained exists in the gutter channel body, water flow impacts the drainage baffle to automatically drain water, other structures for controlling the drainage baffle to be opened or closed do not need to be arranged, and therefore the gutter channel further has the advantages of being simple in structure, low in production cost and the like.
Owner:CHONGQING CHANGAN AUTOMOBILE CO LTD

A washing machine drainage control method and a washing machine

This invention discloses a washing machine drainage control method and a washing machine. The washing machine operates a drainage program, with a drain pump installed at the bottom of the outer tub. Its outlet is connected to a drain hole in the outer tub via a drain pipe, which is inclined. The washing machine's drainage program is divided into four stages. Combined with structural modifications to the washing machine, the control method includes: Stage 1: Starting the drain pump and cyclically starting and stopping; Stage 2: Starting the motor and running at low speed, cyclically rotating with long runs and short stops; Stage 3: Controlling the motor to rotate with short runs and long stops; Stage 4: Controlling the motor to run at high speed. During Stages 2, 3, and 4, the drain pump is controlled to rotate with long runs and short stops. This invention, through structural modifications and drainage timing control, allows water in the drain pipe to flow back into the pump chamber due to the inclined structure of the drain pipe during the drain pump's stop period, pushing air out of the pump's inlet and into the outer tub, thus solving the problem of air trapped in the pump.
Owner:QINGDAO JIAOZHOU HAIER WASHING APPLIANCE CO LTD

Waterway control method and device, dish washing machine, equipment, medium and product

The invention relates to the technical field of dish-washing machines, and provides a water way control method and device, a dish-washing machine, equipment, a medium and a product. A first cavity and a second cavity in the dish-washing machine are physically separated through a partition plate and share one set of water way system; the waterway system comprises a drainage pump, a washing pump and a water storage device; the water storage device is respectively connected with the drainage pump, the first chamber and the second chamber of the washing pump; the water storage device is used for collecting use water sprayed by the first chamber and / or the second chamber; the method comprises the following steps: monitoring the residence time and / or the residence water level of used water in the water storage device; when the staying time and / or the staying water level exceed / exceeds the monitoring numerical value, the draining pump and / or the washing pump are / is controlled to drain the use water in the water storage device out of the dish washing machine and / or convey the use water to the cavity for spraying. The invention discloses a dishwasher capable of realizing separate-cavity independent washing, which can be used for timely emptying water in a water storage device so as to prevent sewage in one cavity from influencing the other cavity through the shared water storage device.
Owner:WUHU MIDEA KITCHEN & BATH APPLIANCES MFG CO LTD

Irrigation system

This invention provides an irrigation system that can improve the efficiency of water drainage. [Solution] The irrigation system (10) comprises a main pipe (11), a plurality of branch pipes (21), a main shut-off valve (12), auxiliary shut-off valves (50) which are motor ball valves that open and close each of the plurality of branch pipes, at least one drain pipe (13, 15), drain valves (14, 16) which are motor ball valves that open and close the drain pipe, a terminal (60) that communicates wirelessly with a server (90) and sends commands to the server in response to user operations, and a control unit (30) that communicates wirelessly with the server and controls the main shut-off valve, auxiliary shut-off valves and drain valves based on the commands. The terminal sends a draining command to the server in response to user operations to drain water from the main pipe and branch pipes, and the control unit closes the main shut-off valve and opens the drain valves and all auxiliary shut-off valves based on the draining command.
Owner:CKD CORP

Water discharge control system

To change setting of control related to water discharge and stop by operation of a user.SOLUTION: A water spout control system according to an embodiment includes a water discharger, a sensor configured to detect at least a water discharge area, a determiner configured to determine a state of an object to be detected detected by the sensor, and an operation detector configured to detect a predetermined operation by a user for controlling a water discharge state of the water discharger. The control unit controls the water discharge state, the control unit has a water discharge mode for controlling the water discharge state and a setting change mode in which the setting information can be changed, the operation detection unit receives a setting change operation for changing the setting indicated by the setting information in the setting change mode, and the control unit changes the setting information based on the setting change operation in the setting change mode.SELECTED DRAWING: Figure 1
Owner:TOTO LTD

Foundation pit dewatering pipeline suspension fixing device

The utility model provides a kind of pit dewatering pipeline suspension fixing device, including support frame, pipeline limiter and cable fixing part, the support frame is inserted in the periphery of foundation pit, the pipeline limiter is set on the support frame, for shu clamping drainage pipeline, the cable fixing part is set in the side of the support frame, for placing cable.The utility model has the beneficial effects that by setting support frame and pipeline limiter, the suspension fixing of drainage pipeline is realized, so that drainage pipeline can be laid along the set path, and it is not easy to be damaged;By adjusting the depth of support leg inserted into soil, the slope of drainage pipeline is controlled, and the drainage effect is guaranteed;By setting cable fixing part, the suspension fixing of cable is realized, the safety of electricity use is guaranteed, and the potential safety hazard is reduced;Simple structure, convenient operation.
Owner:MCC TIANGONG GROUP

Basement drainage and monitoring integrated system

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.
Owner:CHENGDU CONSTR ENG DECORATION & FITMENT CO LTD +1

An ice maker with automatic water changing function

ActiveCN224285040UAutomatic deliveryautomatic waterproofLighting and heating apparatusIce productionSolenoid valveControl cell
This utility model relates to an ice maker with automatic water changing, comprising a water collection tank and an ice-making body; the water collection tank is equipped with a cleaning component, and a water outlet is provided through the lower end of the inner wall of the water collection tank. Each water outlet is equipped with one end of a connecting pipe, and the other end of the connecting pipe is connected to the water inlet of a pressurizing device. The pressurizing device is equipped with a first solenoid valve; a drain hole is also provided through the lower end of the inner wall of the water collection tank, and each drain hole is equipped with one end of a drain pipe. The other end of the connecting pipe is connected to a second solenoid valve for controlling drainage or stopping drainage; a water inlet is provided through the upper end of the inner wall of the water collection tank, and a water inlet pipe is provided through the water inlet. The other end of the water inlet pipe is connected to a third solenoid valve for controlling water intake or stopping water intake. The third solenoid valve is connected to a water intake device; a control unit is also provided; this utility model can automatically change the water in the water collection tank of the ice maker without manual intervention, making it highly efficient and fast.
Owner:FOCUSUN REFRIGERATION JIANGSU

Coal mine water prevention and control drainage system and method

The invention provides a coal mine water prevention and control drainage system and method, and relates to the technical field of coal mine water prevention and control. Whole-process automation and continuous drainage of dredging operation are achieved, and safety and efficiency are remarkably improved; the sedimentation tank is divided into a water bin and a sedimentation bin, and is matched with sequential control of three valves, so that cyclic operation of three stages of'upper-layer drainage and lower-layer sedimentation ', 'upper-layer drainage and lower-layer drainage', and'upper-layer drainage and lower-layer desilting 'is realized. The circulating operation is characterized in that the desilting operation only needs to close the first valve to isolate the water sump and the sedimentation bin without stopping water inlet of the whole system and normal water drainage of the water sump, so that the major defect that water drainage must be interrupted in traditional manual cleaning is thoroughly overcome, continuity of water control work is guaranteed, and the working efficiency is improved. And the potential safety hazard caused by the drainage window period is greatly eliminated. And meanwhile, workers are thoroughly liberated from high-risk and heavy dredging work, and the safety risk and the labor cost are fundamentally reduced.
Owner:XIEGOU COAL MINE OF SHANXI XISHANJINXING ENERGY CO LTD

Drainage equipment for municipal bridge

The utility model relates to the technical field of municipal drainage, in particular to drainage equipment for a municipal bridge. The technical problems that under the condition that the water potential is large, large-size impurities on the road surface are prone to being accumulated above a water outlet, the drainage efficiency is affected, the drainage amount cannot be controlled, and rainwater cannot be recycled are solved. According to the technical scheme, the drainage equipment for the municipal bridge comprises a drainage cavity, a collection assembly, a drainage assembly, a shielding assembly, a protection assembly and a fixing assembly; compared with an existing municipal bridge drainage device, under the condition that the water potential is large, large-size impurities on the road surface are prone to being accumulated above a water outlet, the drainage efficiency is affected, the drainage amount cannot be controlled, and rainwater cannot be recycled; according to the device, large-size impurities are collected by arranging the collecting device, the situation that the large-size impurities affect the drainage rate at a drainage opening is prevented, different drainage devices are arranged, rainwater is recycled when the water potential is small, and the drainage speed is increased when the water potential is large.
Owner:JILIN BOCHUANG WATER DESIGN CO LTD

Automatic drain water discharging device for boiler steam pipeline

The utility model relates to the technical field of pipeline drainage, and discloses a boiler steam pipeline drainage automatic discharging device which comprises a steam pipeline, the right side of the top of the steam pipeline is communicated with a steam inlet pipe, the inner wall of the steam inlet pipe is fixedly connected with a spiral flow deflector, and the right end of the steam inlet pipe is communicated with a condensate water collecting cavity. A sealing plate is arranged at the top of the condensate water collecting cavity, the bottom of the condensate water collecting cavity communicates with a drainage pipe, a control valve is fixedly connected to the outer wall of the drainage pipe, a filtering frame is slidably connected to the left side of the inner wall of the condensate water collecting cavity, and a floating rod is slidably connected to the inner wall of the condensate water collecting cavity. According to the utility model, large-particle impurities are intercepted through the coarse filter screen, primary purification of condensate water is realized, the touch switch is matched with the limiting plate and the control valve, drainage is controlled according to a liquid level trigger signal, the response is more timely compared with that of a single liquid level sensor, and the liquid level sensor forms redundant monitoring with the liquid level sensor, so that automatic collection, monitoring and drainage control are realized.
Owner:INNER MONGOLIA SHANGDU POWER GENERATION CO LTD

Automatic opening and closing valve for ship air bottle

The utility model discloses a marine air bottle timing residual drainage automatic on-off valve, including 220V alternating electromagnetic valve, 220V alternating electromagnetic valve fixed mounting is on the bottom intercommunication of air bottle drainage pipeline for controlling the on-off of drainage pipeline, manual residual drainage stop valve, manual residual drainage stop valve fixed mounting is on the bottom intercommunication of air bottle drainage pipeline for on-off drainage pipeline, time relay, time relay electric connection 220V alternating electromagnetic valve, time relay is fixed in the air bottle air compressor control box. In the utility model, after using this novel timing residual drainage automatic on-off valve, the safety and reliability of equipment operation are improved first, and the service life of equipment and pipeline is greatly prolonged, the maintenance cost in the use process of shipping company is greatly reduced, and the present existing ship is basically manual drainage valve artificial operation, and the safety hidden danger is big, and the artificial operation is avoided by using this design.
Owner:JIANGSU DAJIN HEAVY IND

Automatic drainage device and automatic drainage method for new energy automobile air reservoir

The invention discloses an automatic drainage device and method for a new energy automobile air reservoir, and relates to the field of new energy automobiles, the automatic drainage device comprises an air inlet cylinder body, a drainage shell, a sealing top cover, a drainage pipeline and a drainage connector, the air inlet cylinder body is located on one side of the drainage shell, and the sealing top cover is fixedly installed at the upper end of the drainage shell. According to the automatic drainage device and method for the new energy automobile air reservoir, wind power generated in the operation process of a new energy automobile is used as a power source, extra electric power or external energy is not needed, the complete automation of the drainage process is achieved, accumulated water at the bottom of the air reservoir is rapidly sucked through the drainage pipeline, and the drainage efficiency is improved. Compared with traditional gravity drainage or passive valve control drainage, the rotary water suction mode has the advantages that higher efficiency is achieved, air pressure in the air storage cylinder is increased, the drainage process is assisted, drainage difficulty caused by negative pressure of the air storage cylinder is effectively prevented, and drainage efficiency and reliability are improved.
Owner:安徽赛扬信息科技有限公司