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244 results about "Sump" patented technology

A sump (American English and some parts of Canada: oil pan) is a low space that collects often undesirable liquids such as water or chemicals. A sump can also be an infiltration basin used to manage surface runoff water and recharge underground aquifers. Sump can also refer to an area in a cave where an underground flow of water exits the cave into the earth.

Hydraulic oil tank with high cleaning performance

The invention provides a hydraulic oil tank with high cleaning performance, which relates to the technical field of hydraulic oil tanks and comprises a tank body, an oil pan and an oil tank cover, an oil return pipe and an oil suction pipe are respectively arranged at two ends of the tank body, an oil return cavity, an overflow cavity and an oil suction cavity are arranged in the tank body, the oil pan is arranged at the bottom of the tank body, and the oil tank cover is fixedly mounted at the top of the tank body. The quick release assemblies are mounted on the outer side of the tank body, the two cleaning assemblies correspond to the oil return cavity and the oil suction cavity in the tank body in position and are mounted on the oil tank cover, and the overflow assembly corresponds to the overflow cavity in the tank body in position and is mounted on the oil tank cover. The cleaning assembly is driven to clean impurities adhering to the inner wall of the rectangular oil tank, bubbles and floating foam on the surface of the oil body are eliminated in the cleaning process, the cleaning performance of the oil tank is improved, meanwhile, the cleaning assembly is in linkage with the overflow assembly to heat the oil body, and the oil tank can meet the use requirement of the cold environment.
Owner:WUXI ZHONGAN PRECISION TECHNOLOGY CO LTD

Directional long drill hole hydraulic fracturing method for underground long-distance high-pressure pump set

The invention discloses an underground long-distance high-pressure pump set directional long drilling hydraulic fracturing method which comprises the following steps: S1, mounting a high-pressure pump set in an underground central water sump, and debugging; s2, a route is laid, and a three-way ball valve is installed; s3, a directional fracturing drill hole is designed and constructed, and a channel is provided for fracturing operation; s4, a fracturing tool is selected and installed in the drill hole, and a high-pressure pipeline is connected; s5, staged fracturing is conducted on the drilled hole, and fracturing parameters are monitored in real time; s6, monitoring data in the fracturing process are collected, the fracturing effect is evaluated, whether the expected target is reached or not is judged, and re-fracturing is conducted if the expected target is not reached; and S7, after fracturing operation is completed, the high-pressure pipeline is recycled, equipment maintenance is conducted, and it is ensured that the equipment is intact and free of damage for subsequent use. The high-pressure pump set is arranged in the central water sump, long-distance liquid supply is achieved through accumulated water in the water sump, the problem of insufficient liquid amount is solved, the fracturing efficiency is improved, and the fracturing effect is ensured.
Owner:CHINA UNIV OF MINING & TECH

Dirty oil sludge dehydration and solid removal treatment equipment

The utility model relates to the technical field of environmental protection, and discloses sump oil sludge dehydration and solid removal treatment equipment which comprises a first treatment box, and a columnar cavity is formed in the first treatment box; a columnar cavity is formed in the second treatment box, the second treatment box is connected with the first treatment box through a pipeline, and the bottom end of the second treatment box is fixedly connected with a blow-off pipe; the cleaning assembly is arranged in the first treatment box and used for cleaning the inner wall of the first treatment box, a servo motor and a flow guide block are arranged in the cleaning assembly, and after the device is used, the first motor drives a movable block to rotate through an output shaft; the movable block drives the flow guide block to rotate and rub the inner wall of the first treatment box, redundant oil flows to the inner bottom of the first treatment box through the flow guide block and a guide groove in the flow guide block, at the moment, the redundant oil is discharged through a pipeline, and it is avoided that oil is accumulated in the first treatment box for a long time, qualitative change occurs, and pollution is caused to follow-up oil obtained through oil-water separation.
Owner:BAZHOU KAIDELI PETROLEUM TECH SERVICE CO LTD

Motor heat management module

The utility model provides a motor heat management module which comprises an oil pan and is characterized in that the interior of the oil pan is divided into a front side dry cavity and a rear side wet cavity through a partition plate, a filter is installed in the wet cavity, an electronic pump and an oil cooler are installed in the dry cavity, and an oil outlet of the filter is connected with an oil inlet of the electronic pump. An oil outlet of the electronic pump is connected with an oil inlet of the oil cooler, an oil outlet of the oil cooler is connected with the oil pan, and the oil cooler is further connected with the water cooling assembly. Highly integrated optimization design is realized, dry and wet cavities of an oil pan are separated, an oil cooler and an electronic pump are highly concentrated in a dry cavity of the heat management module, the external environment is isolated through a cover plate, meanwhile, cooling water channels corresponding to a water inlet and a water outlet of the oil cooler are conveniently arranged, and meanwhile, the occupied space of the oil cooler and the electronic pump is reduced; the power density of the motor and the reliability of a cooling system are improved, the cost loss of the motor is reduced to a certain extent, the service life of a product is prolonged, and the installation and maintenance convenience is improved.
Owner:NAKAZAKI MOTOR (SUZHOU) CO LTD

Intelligent start-stop control system and control method for mine drainage pump

The invention discloses an intelligent start-stop control system and method for a mine drainage pump, and particularly relates to the technical field of drainage control, and the system comprises a dynamic water level monitoring module, a prediction analysis module, a multi-stage temperature sensing unit and an intelligent control module. Through the arrangement of the dynamic water level monitoring module and the prediction analysis module, water level data of a sump in a mine can be collected in real time, the water level change rate is calculated, the water inflow trend in the future TI time period is predicted, and when the water level change rate exceeds a preset threshold value or the water amount is predicted to be increased sharply, an emergency drainage mode can be started; all available water pumps are started, a peak-avoiding and valley-filling strategy is shielded, through combination of a dynamic water level monitoring module and an emergency drainage mode, dynamic control of the system on water level changes can be ensured, the risk of well flooding caused by too high water level can be effectively avoided, the probability of occurrence of waterlogging or water permeation accidents in a mine is reduced, and underground operation safety is improved.
Owner:BEIJING LINGYUN SPACE TECH CO LTD +1

Underground sump dredging equipment based on deep well coal mine

The invention relates to the technical field of sump desilting, and discloses underground sump desilting equipment based on a deep well coal mine, which comprises a rack, walking crawler belts arranged on two sides of the rack, a sludge box and a glove box positioned on the top of the rack, and a collecting assembly for collecting sump sludge, the collecting assembly comprises a dirt collecting hopper arranged on the surface of the rack, a spiral blade rotating in the dirt collecting hopper and an intercepting assembly, the intercepting assembly is arranged on the side, away from the rack, of the dirt collecting hopper, the intercepting assembly comprises a roller, a plurality of conical blocks are arranged on the surface of the roller, a positioning shaft is arranged in the roller in a penetrating mode, and the conical blocks are arranged in the positioning shaft. The two ends of the positioning shaft are fixedly connected with connecting frames, the connecting frames are connected with the sludge collecting hopper through connecting assemblies, and when the roller rolls on the surface of sludge, the conical blocks penetrate into sundries and hang the sundries on the surface of the conical blocks. The water sump dredging device has the effect of effectively removing various strip-shaped impurities in underwater sludge during water sump dredging.
Owner:HUAIBEI MINING CO LTD

Fluid collection assemblies including a sample port

Fluid collection assemblies (100, 200, 300a, 300b, 400a, 400b, 500, 600) including a sample port (112, 212, 312, 412a, 412b, 512), systems (146a) including the same, and methods of using the same are disclosed herein. An example fluid collection assembly (100) includes a fluid impermeable barrier (102) including a first end region (104), a second end region (106) opposite the first end region, and a sump (108) that forms at least a portion of the first end region. The fluid impermeable barrier also defines at least one opening (114) between the first end region and the second end region and a fluid reservoir that is defined by at least a portion of the sump. The fluid collection assembly also includes at least one wicking material (138) disposed in the chamber (116) and a sample port (112) extending from the sump. The sample port is configured to be connected to a fluid collector (144a). The sample port is in fluid communication with the fluid reservoir (110) such that a sample of the bodily fluids received by the fluid collection assembly may be obtained.
Owner:PUREWICK CORP

Deep foundation pit dewatering and drainage construction method based on water level control and control system

The invention provides a deep foundation pit dewatering and drainage construction method based on water level control and a control system.The deep foundation pit is provided with an upper berm, a lower berm and an excavation base face, dewatering tube wells are arranged on the excavation face and the upper berm, and first water pumps of the dewatering tube wells are used for water pumping and drainage; an inverted filter layer is arranged on the slope surface of a lower berm and an excavation base plane, dewatering and drainage are conducted in cooperation with a slope toe drainage ditch and a water collecting well, water level sensors in a river and the water collecting well are used for collecting the water level in real time, optimization decision making is conducted in combination with the water level, then a first water pump is driven to conduct power adjustment, and the dewatering and drainage construction efficiency is improved through a corresponding control decision making method.
Owner:HENAN PROVINCIAL WATER CONSERVANCY SECOND ENG BUREAU GRP CO LTD

Drainage device for underground coal mine

The utility model relates to the technical field of mine drainage, in particular to an underground coal mine drainage device which comprises a mine base layer and further comprises a detection assembly, a drainage assembly and a drainage assembly. The sewage discharging assembly is arranged at the bottom of the inner cavity of the water sump and facilitates discharging sludge sinking to the bottom. According to the utility model, the KJ1158 hydrological dynamic observation system is utilized to monitor information such as flow, flow velocity and the like of each underground site in real time, and the KJ1137 mine hydrological dynamic monitoring and early warning system can trigger an alarm to remind, so that workers can respond quickly, and the working efficiency is improved; redundant accumulated water can be quickly drained through the drainage assembly; the accumulated water level height is monitored in real time through the detection assembly, and accumulated water level height data are visually displayed to workers, so that the data are collected and analyzed in a centralized manner, and equipment operation is convenient to manage and optimize; sludge sinking to the bottom of the water sump inner cavity can be discharged through the sewage discharging assembly, and therefore normal operation and efficient drainage of the mine water sump can be guaranteed.
Owner:HUTUBI COUNTY COAL DIVERSIFIED OPERATIONS CO LTD

Pneumatic sludge cleaning device based on mining area water sump

The utility model discloses a pneumatic sludge cleaning device based on a mining area water sump, which comprises a mounting plate, and a driving mechanism is arranged at the bottom of the mounting plate. Through cooperative work of the multiple sets of driving modules, the gears and the toothed belts, overall movement of the device is achieved, the stability and reliability of movement of the device are enhanced, and the dredging efficiency is greatly improved; the angle of the shovel box can be automatically adjusted through an air cylinder, a hinge frame and other adjusting mechanisms, it is ensured that the sharp bottom of the shovel box makes contact with the ground all the time when the shovel box works on the ground with different gradients, and therefore the desilting requirements under various complex terrains are met, and the adaptability and flexibility of equipment are remarkably improved; through efficient rotation of the first spiral fan blade and the second spiral fan blade, the sludge conveying speed is increased, the sludge adhesion problem is solved in a shaftless conveying mode, it is ensured that the whole dredging process is smoothly conducted, and the downtime and maintenance cost caused by blockage are reduced.
Owner:INNER MONGOLIA V V ENERGY CO LTD

Special fixing tool for oil sump

ActiveCN224407337UElectric machinerySump
The utility model relates to the technical field of fixed frock, concretely to special fixed frock of oil sump, including bottom plate, the upper portion of bottom plate is provided with fixed block no.
Owner:XINCHANG COUNTY WANRUI FOUNDRY CO LTD

Automatic drainage control device for underground sump

The invention discloses an automatic drainage control device for an underground sump. Relates to the technical field of underground drainage, and comprises a fixed platform fixed in an underground sump and a vertical guide rod, one end of the guide rod is fixed on the bottom surface of the sump, and the other end of the guide rod is connected with the fixed platform; the guide rod is sleeved with a floating plate, a contact head is arranged on the floating plate, a magnetic attraction type touch switch for controlling the water pump to be started and stopped is arranged on the fixed platform, and the floating plate slides along the guide rod so as to drive the contact head to abut against the magnetic attraction type touch switch; through the arrangement of the floating plate, the magnetic type touch switch and the balance weight plate, the control switch can automatically turn on the water pump along with the rising and falling of the water level so as to drain water from an underground sump, and after water drainage is completed, the balance weight plate drives the floating plate to automatically disconnect under the action of gravity; manpower is reduced, and meanwhile the defect that a common water level sensor is prone to faults is overcome; and high-reliability, low-maintenance and self-adaptive drainage operation in a real sense is realized.
Owner:CHINA MINMETALS CHANGSHA MINING RES INST +1

Foundation pit drainage structure and its construction method

The present invention discloses a foundation pit drainage structure and its construction method, which relates to the technical field of foundation pit drainage. The invention includes a foundation pit, a drainage ditch, a sump, and a support frame; slopes are provided on the inner walls of the foundation pit; the sump is communicated with the drainage ditch; insertion holes are provided on the sides of the first side plate and the second side plate; a two-way pipe assembly is inserted and matched with the insertion hole on the first side plate; a second drain pipe is inserted and matched with the insertion hole on the second side plate; a filter element is arranged inside the sump; the filter element is connected to an external working water pump through a suction pipe; the two-way pipe assembly is connected to an external standby water pump through a suction pipe. With the gradual rise of the accumulated water level, the floating ball is driven to gradually rise along the guide rod, thereby driving the light-shielding plate to gradually rise. When the accumulated water overflows the groups of two-way pipe assemblies at the lowest layer, the light-shielding plate just blocks the infrared travel switch at the lowest layer, and the controller controls the corresponding external standby water pump to start, and the accumulated water is pumped away through the first water delivery pipe, improving the drainage efficiency.
Owner:CHINA CONSTR FANGYUAN EAST CHINA URBAN DEV & CONSTR CO LTD

Online mud scraping device for coal mine sump

The utility model discloses a coal mine sump on-line mud scraping device which comprises a sump main body and a mud scraping trolley installed in the sump main body, and mud scraping plates are arranged on the left side and the right side of the mud scraping trolley to scrape off coal slime on a floor of the sump main body. Sedimentation tanks are arranged on the left side and the right side of the water sump main body and used for storing scraped coal slime, connecting blocks are arranged between the outer walls of the left end and the right end of the mud scraping trolley and the mud scraping plates and used for limiting the positions of the mud scraping plates, and positioning rods, rolling wheels and fixing plates are installed, so that when the mud scraping trolley moves into the water sump main body along with the steel wire rope, the mud scraping trolley moves to the water sump main body along with the steel wire rope; the fixed plate at the upper end of the mud scraping trolley is limited by the positions of the positioning rods and the rollers at the upper end and the lower end, in the moving process, coal slime on the water sump body floor can be scraped away in advance through the mud scraping plate, the foot placing positions of the mud scraping trolley moving wheels are reserved on the water sump floor, and the situation that when the mud scraping trolley moves subsequently, the coal slime is scraped away is prevented. The situation that the coal slurry moves to the upper side of the coal slurry occurs.
Owner:SHIJIAZHUANG YUXING ELECTROMECHANICAL TECH CO LTD

Inlet Fitting for the Sump of Sewage Lift Equipment

ActiveCN309353515SSewageWater collection
1. Name of the design product: Inlet fitting for the water collection tank of sewage lifting equipment. 2. Use of the design product: A connecting fitting used between the water collection tank of sewage lifting equipment and the drain pipe of sanitary ware. 3. Design key points of the design product: Lies in the shape. 4. Picture or photograph that best shows the design key points: Perspective view.
Owner:SHANGHAI ZHILIU ENVIRONMENTAL PROTECTION TECH CO LTD

Mine sludge treatment device

The invention provides a mine sludge treatment device. The mine sludge treatment device comprises a sludge thickness detection device, an automatic control box, a stirrer, a moving device, a water sump track, a driving motor and a water pumping pump, the driving motor is used for driving the moving device to advance or retreat; the moving device is used for driving the stirrer to move along the water sump track; the sludge thickness detection device is arranged at the bottom of the water sump and is electrically connected with the automatic control box; the sludge thickness detection device is used for detecting the thickness of sludge in the water sump; the water pumping pump extends to the bottom of the water sump through a water pumping pipeline and is electrically connected with the automatic control box; the automatic control box is used for triggering the stirrer to start stirring operation when the sludge thickness is larger than a preset threshold value and the water pumping pump is powered on and started and triggering the driving motor to rotate forwards or backwards so as to drive the moving device to move forwards or backwards. The desilting efficiency is improved, and the desilting cost is reduced.
Owner:HUANENG YUNNAN DIANDONG ENERGY CO LTD

Oil-water separation device for collecting floating oil in a sump

The application discloses a kind of oil-water separation devices for collecting oil from floating oil in dirty oil pool, including first shell, first shell has multiple, multiple first shell is enclosed to be a closed area, support frame is arranged at the central position of the area enclosed by multiple first shell, support frame can rotate, and outlet and stirring member are set on support frame, oil-water mixture enters into first shell through outlet, first shell has upwardly open cavity, and the lower end surface of cavity has inclined bottom surface, water outlet is set at the central position of bottom surface, valve assembly is set in water outlet.In the use of the device, the oil-water mixture in the first shell can be extracted by the suction assembly, and the use of the limiting assembly can prevent the suction assembly from extracting the lower layer of water (or reduce the amount of water extracted), thereby facilitating the user to use the device.
Owner:GUODIAN DUYUN POWER CO LTD

Airport ground well drainage system

The utility model relates to an airport ground well drainage system, which is characterized in that a water collecting pit is arranged at the bottom of a well pit of a ground well, and the drainage system comprises a drainage pump, a first liquid level sensor, a second liquid level sensor, a drainage hose, a one-way check valve, a drainage embedded part and a ground well PLC (Programmable Logic Controller) control box, the drainage pump, the first liquid level sensor and the second liquid level sensor are all electrically connected with the ground well PLC control box, the drainage pump is arranged in a sump and connected with the one-way check valve through a drainage hose, the one-way check valve is connected with the drainage embedded part through the drainage hose, and therefore a drainage main loop of a ground well is formed. And water in the ground well is discharged into a ground airport apron or a drainage pipe network through the main loop. The two liquid level sensors are adopted, liquid level monitoring and water level offside monitoring can be achieved, meanwhile, fault alarm of the drainage pump can be achieved, and the normal working state of the drainage pump is guaranteed.
Owner:CHINESE PEOPLES LIBERATION ARMY UNIT 93204

Water collecting pit structure meeting quicksand and underground water

ActiveCN223497206UFoundation engineeringEnvironmental engineeringCylindrical enclosure
The sump structure comprises at least one water pumping pipe penetrating into a stagnant water layer, and a water pump is arranged in each water pumping pipe and used for pumping out water in the stagnant water layer. The water collecting pit structure meeting quicksand and underground water further comprises a water collecting pit supporting structure arranged in a water collecting pit formed by digging the water pumping pipe towards the edge, the water collecting pit supporting structure is in a seamless cylinder shape formed in an enclosing mode, and the water collecting pit supporting structure is communicated with the inner space of the water collecting pit. The sump supporting structure is used for providing support for a structural bottom plate. The method has the effects that underground water is pumped and drained timely and effectively, it is guaranteed that no water is accumulated on the working face, and follow-up procedures are conducted smoothly.
Owner:BEIJING INT CONSTR GRP

Fabricated water supply inspection well with flood prevention and leakage detection functions

The utility model relates to an assembly type water supply inspection well with functions of flood prevention and leakage detection, which comprises a well body and a well bottom assembled with the well body in a plug-in manner, the inner surface of the bottom of the well bottom is arranged to be an inclined plane, and a water collection pit is arranged at the bottom of the well bottom and corresponds to the lower position of the inclined plane; and a liquid level detector for monitoring the liquid level in the sump is also arranged. Water in the well body can be conveyed to the position of the sump at the well bottom through the inclined well bottom, and the water level in the well is monitored in real time through the liquid level detector in the well, so that when the water level in the well bottom reaches a certain height, accumulated water in the sump can be drained out of the inspection well by means of the pump body, and automatic drainage is achieved; and meanwhile, the waterlogging prevention of the road can be realized in rainy days. Moreover, the liquid level detector can monitor the change of the liquid level in real time, so that an inspector can detect whether accumulated water exists in the inspection well or not in real time, and whether the pipeline in the well leaks or not can be judged in time.
Owner:重庆水资源产业股份有限公司

Mine with water sump sludge discharge device

ActiveCN117703507BWater useSludge
The application discloses a mine water sump sludge discharging device and relates to the technical field of water sump sludge discharging. The mine water sump sludge discharging device can filter and separate the sludge mixed in water so as to directly suck the sludge, and comprises a water sump. The water sump is provided with a water inlet pipe communicated with the top end of the water sump, a sand suction pipe communicated with the water sump, a suction pump fixedly connected to the side of the top end of the water sump away from the water inlet pipe, the suction pump communicated with the sand suction pipe, and a suction frame communicated with the bottom end of the sand suction pipe. The accumulated water downwardly discharged into the water sump through the water inlet pipe can flow into the space between the net frame and the net plate, the sludge in the accumulated water is filtered and separated through the cooperation of the net plate and the net frame, the sludge is upwardly sucked out through the sand suction pipe and the suction frame by the operation of the suction pump, the sludge mixed in the accumulated water is continuously filtered and separated through the rotation of the net frame and the net plate, and then the sludge is conveyed to the suction frame below to be directly sucked out of the water sump. In this way, the sludge in the water sump can be conveniently discharged without emptying the surface water.
Owner:TONGLING NONFERROUS METALS TIANMASHAN GOLD MINING CO LTD

A tunnel drainage system based on a mechanical connection channel and its control method

The present invention relates to the technical field of tunnel traffic, and discloses a tunnel drainage system based on a mechanical connection passage and a control method thereof. The tunnel structure includes an up-tunnel, a down-tunnel and a mechanical connection passage; the tunnel drainage system includes a sump, a negative-pressure water suction assembly and a positive-pressure water drainage assembly; the up-tunnel and the down-tunnel are connected through the mechanical connection passage, and the lowest horizontal height of the mechanical connection passage is higher than the lowest horizontal heights of the up-tunnel and the down-tunnel; the sump is arranged at the lowest points of the up-tunnel and the down-tunnel, and the lowest horizontal height of the sump is lower than the lowest horizontal heights of the up-tunnel and the down-tunnel; the negative-pressure water suction assembly includes a self-suction pipe, and the water suction port of the self-suction pipe extends into the sump and is flush with the lowest water level surface of the sump; the positive-pressure water drainage assembly includes a submersible pump, and the submersible pump is arranged in the sump. Based on the above solution, the present invention can avoid the influence of accumulated water on the roadbed and rails in the tunnel.
Owner:CHINA RAILWAY DESIGN GRP CO LTD

Intelligent lubricating system based on texturing oil pit depth dynamic adjustment

The invention relates to an intelligent lubricating system based on texturing oil pit depth dynamic adjustment. The intelligent lubricating system comprises a lower sample and an upper sample capable of rotating in the lower sample to form a friction pair. A plurality of oil pits are formed in the top friction surface of the lower sample, and an adjusting piece is arranged in each oil pit in an axial sliding manner and divides the oil pit into an upper lubricating area and a lower transition area. The device is provided with a first electric push rod for driving an adjusting part to axially move to adjust the depth of a lubricating area, and a one-way flow channel is formed in the adjusting part. When the adjusting piece moves downwards to compress the transition area, the lubricating oil forms directional flow towards the lubricating area through the one-way flow channel. When the upper sample rotates, lubricating oil in the lubricating area and the friction surface form an oil film to realize lubrication. The position of the adjusting piece is accurately controlled through the electric push rod, the lubricating area depth and the oil level height can be dynamically adjusted according to working condition requirements, and therefore the lubricating effect is optimized. According to the device, intelligent regulation and control of the lubricating performance are achieved, and the lubricating requirements under different working conditions are met.
Owner:WUHAN UNIV OF SCI & TECH

A sump intelligent monitoring method and system

An embodiment of the present invention provides an intelligent monitoring method and system for a sump, wherein the method determines the water inflow rate of the sump when detecting that the water level in the sump reaches a preset height; digitally models the sump and the water pump respectively to generate a first digital model of the sump and a second digital model of the water pump; constructs a first sludge distribution model in the sump based on first ultrasonic data obtained after detecting the sludge in the sump; determines a first layout position of the water pump in the sump where it will not come into contact with the sludge based on the overlap of the second digital model in the first digital model with the first sludge distribution model; determines a first target gear position based on the concentration of suspended solid particles in the water body at the first layout position and the water inflow rate; controls the water pump to perform drainage operations at the first target gear position at the first layout position; and the implementation of the present invention can reduce the probability of water overflow in the sump.
Owner:金峻建设工程有限公司

Hydraulic turbine generator set speed regulation system oil leakage alarm method

A method for alarming oil leakage in a hydro-generator speed control system includes the following steps: S1, reading historical time-series data of oil level in the pressure tank and oil level in the sump; S2, performing steady-state screening on the historical time-series data of oil level in the pressure tank and oil level in the sump to obtain steady-state historical time-series data of oil level in the pressure tank and oil level in the sump, H1 and H2; S3, performing linear fitting on H1 and H2 in S2 using the least squares method to obtain the fitting result, where k is the linear coefficient obtained by the least squares method fitting, b is the constant term obtained by the least squares method fitting, and is the estimated value of H2, and the fitting deviation y is calculated. The technical problem to be solved by this invention is to provide an alarm method for oil leakage in a hydro-generator speed control system. This method comprehensively considers the oil level values ​​of the pressure tank and oil sump in the hydro-generator speed control system, and can issue an alarm in the early stage of oil leakage fault.
Owner:CHINA YANGTZE POWER

Split oil sump assembly for outboard motor

This invention relates to a split-type oil pan assembly for outboard motors, comprising a load-bearing plate, a shock absorber, an oil suction pipe, a shock absorber cover, a sealing strip, an oil pan, and a sealing gasket. The load-bearing plate integrates an oil inlet channel, an oil return channel, and multiple mounting holes for mounting a shifting mechanism, a tray, and a shock absorber, and is equipped with stiffening ribs to enhance structural strength. The oil pan and load-bearing plate are separately configured and connected by a sealing gasket, achieving separation of oil storage and load-bearing functions. This invention achieves modularization of the oil pan's oil storage and load-bearing functions by designing a split design for the traditional one-piece oil pan. The oil pan structure responsible for oil storage can be made simpler and lighter, while the load-bearing part can adopt a multi-ribbed structure with better rigidity and higher-strength materials. This improves reliability, reduces maintenance costs, and ensures design and manufacturing flexibility.
Owner:CHINA NORTH ENGINE RES INST

Mine sump structure

The utility model relates to the technical field of coal mine desilting, in particular to a mine sump structure. The mine water sump structure comprises a water sump body, a sump top, a connecting steel frame, a filter frame, bolts, nuts, a positioning block, an electric push rod and a scraper, the top of the water sump body is connected with the sump top, the water sump body and the sump top are communicated, the left side and the right side in the water sump body are sump bottoms, and the left side of the middle in the water sump body is a first settling zone. The right side of the middle in the sump body is a second settling zone. The filter frame is arranged in the water sump, sludge is effectively intercepted, stable operation of the water sump is guaranteed, the electric push rod is used for driving the scraper to move vertically, the push plate is combined to automatically push out residual sludge in holes of the filter frame, then the sludge is thoroughly cleaned through the scraper, automation of the cleaning process is achieved, the whole filter frame does not need to be detached, and the cleaning efficiency is improved. And the work of maintenance personnel is greatly facilitated.
Owner:SHAANXI SHANMEI TONGCHUAN MINING CO LTD

Efficient dredging device for mine sump

The utility model belongs to the technical field of water sump desilting, and particularly relates to a mine water sump efficient desilting device which comprises a sludge storage box and a sludge conveying pipe installed on one side of the sludge storage box, an electric push rod is installed on the top of the sludge storage box, the output end of the electric push rod is fixedly connected with a connecting rod, and the connecting rod is located on one side of the sludge storage box. A push rod is fixedly connected to the bottom of the connecting rod, a push plate is movably connected to the interior of the mud storage box, the end, away from the connecting rod, of the push rod extends into the mud storage box to be fixedly connected with the push plate, two sets of auxiliary plates are movably connected to the interior of the push plate and located on the two sides of the push plate correspondingly, and extension springs are fixedly connected to the interior of the push plate; the other end of the extension spring is fixedly connected with the auxiliary plate, and one end of the auxiliary plate extends to the outer side of the push plate. According to the efficient dredging device for the mine water sump, sludge in the sludge storage box can be compressed, so that the plot ratio of the interior of the sludge box is increased, then the sludge size can be reduced, and the working efficiency is improved.
Owner:SHANDONG NORUISHENG ELECTROMECHANICAL TECH CO LTD

A cold-rolled strip oiling device

The utility model relates to oiling device technical field, concretely is a kind of cold-rolled strip steel oiling device, including oil sump, the front and rear both ends of the right side of oil sump are fixedly connected with guide plate, the inner surface of guide plate is equipped with guide slot, the inboard of guide slot is fixedly connected with guide sliding block, one side of guide sliding block is fixedly connected with L type connecting plate, one end of L type connecting plate is fixedly installed with cleaning brush plate, the upper end of the inner chamber of oil sump is fixedly connected with taking material roller, the right end of the top of oil sump is provided with transfer roller, the upper end of the right side of transfer roller is fixedly connected with coating roller, the lower end of the right side of oil sump and the left side between cleaning brush plate are fixedly connected with spring.The utility model can clean cold-rolled strip steel surface before oiling, avoid the iron filings, scale, dust and other pollutants generated in strip steel rolling process, the adverse effect of oiling, guarantee the oiling effect of the device.
Owner:SHANGHAI HUACHANG INTELLIGENT SYST CO LTD

Additive manufactured bearing cap for temperature reduction on bearing cap wetted wall

In a traditional bearing cap, the temperature of the oil-wetted surface that defines the oil sump may experience high temperatures, which can result in oil degradation, oil varnish, and coking. Accordingly, a bearing cap is disclosed that reduces the temperatures experienced by the oil-wetted surface. In particular, the bearing cap may comprise one or more air insulation cavities, between the surface that is exposed to heated air and the oil-wetted surface that defines the oil sump, to provide a thermal barrier between the two surfaces.
Owner:SOLAR TURBINES INC