21 results about "Dry well" patented technology

The invention relates to the field of drainage pipe network construction, and particularly discloses a high underground water level pipeline anti-sedimentation backfilling method based on gravel seepage path optimization, which comprises the following steps: S1, constructing suspended Larsen steel sheet pile waterproof curtains on the two sides of a groove to block underground water seepage on the two sides of the groove; s2, arranging carding wells on the two sides of the groove in a plum blossom shape, and adopting a down-the-hole hammer hole forming process to ensure that the permeability coefficient of the wells meets the precipitation requirement; s3, a water collecting pit is excavated in the downstream end of the groove; through the triple synergistic effect of the suspension type Larsen steel sheet piles, the combing well and the water collecting pit, the pipeline construction safety under the high underground water level condition is remarkably improved; lateral underground water permeation is effectively blocked through the suspension type Larsen steel sheet piles, the water level of the combing dry well is rapidly lowered through the down-the-hole hammer hole forming technology, the water collecting pit thoroughly solves the problem of water accumulation in the groove, the underground water level is stably controlled to be 20 cm below the groove bottom through cooperation of the suspension type Larsen steel sheet piles, the down-the-hole hammer hole forming technology and the water collecting pit, and ideal conditions are created for dry groove operation.

1. Name of the design product: dry well. 2. Use of the design product: used in energy exploration, industrial calibration and construction engineering. 3. Design points of the design product: in shape. 4. Pictures or photos that best show the design points: perspective view. 5. Other circumstances that need to be explained: refer to the figure as the explosion diagram of the design product.

A stormwater drywell system is provided that filters water to a predetermined standard prior to depositing the water in the ground. The drywell system can have a primary settling chamber that screens the water in a first instance prior to transmitting the water to a drywell chamber. The drywell chamber can have one or more filters arranged in a modified manhole base where each filter is positioned over an aperture. Within the aperture is an orifice constructed and sized, in some embodiments, to limit the flowrate of water through the orifice and through the respective filter. This ensures a sufficient residence time of water in the filter to filter pollutants out of the water to the predetermined standard. Moreover, flow is limited to only these filters, apertures, and orifices without any bypass to ensure that only sufficiently filtered water is deposited in the ground.

The invention discloses an unwatering well structure with a concrete inner supporting system conversion system and a construction technology, and particularly relates to the technical field of unwatering wells, the unwatering well structure comprises a permanent outer sleeve, a drawable inner core pipe is embedded in the middle of the permanent outer sleeve, and the permanent outer sleeve and the drawable inner core pipe are fixedly connected through a quick connecting assembly; the pipe wall of the permanent outer casing pipe is provided with water filtering holes in a preset water filtering section, the outer wall of the permanent outer casing pipe is wrapped with a geotechnical cloth filtering layer, a suction mechanism is arranged in the middle of the drawable inner core pipe, and a function conversion executing mechanism is arranged in the middle of the permanent outer casing pipe and the drawable inner core pipe; the permanent outer sleeve serves as a permanent bearing part, the drawable inner core pipe serves as a recyclable temporary function module, quick connection and separation are achieved through the quick connection assembly, smooth and reliable function conversion is achieved through the function conversion executing mechanism and the anchoring wings, and the problems that a traditional precipitation well is single in function and wastes materials are solved.

The application provides an adjustable power nuclear heat supply reactor with a dry well, and belongs to the technical field of nuclear reactors. The application solves the problem of limited power of the existing nuclear heat supply reactor. The adjustable power nuclear heat supply reactor comprises a reactor container, a reactor core, a dry well, control rods, a thermal rise baffle, a turbulence assembly and an adjustable power heat exchange system. The reactor core and the dry well are arranged in the reactor container. The dry well is under normal pressure and has no coolant. The control rods are arranged in the dry well and inserted into the reactor core. The dry well is provided with the thermal rise baffle. The thermal rise baffle separates the rising channel and the falling channel of the coolant. The coolant is flashed in the rising channel. The turbulence assembly is arranged in each shunt. The adjustable power heat exchange system comprises a bus and a plurality of sub heat exchange systems. The bus is arranged in the dry well. Each shunt is provided with a sub heat exchange system. The sub heat exchange system is connected with the bus. The adjustable power nuclear heat supply reactor is mainly used for nuclear heat supply reactors.

The utility model relates to the technical field of dry well furnace equipment, and provides a portable dry well furnace which comprises a box body, the box body comprises a frame, a bottom plate, a plurality of side plates and a cover plate, a containing cavity is defined by the frame, the bottom plate, the cover plate and the side plates, the box body is further provided with a vertical partition plate, and the containing cavity is divided into a first cavity and a second cavity through the vertical partition plate; the fan is arranged above the bottom plate, the bottom plate is provided with a first heat dissipation through hole, the cover plate is provided with a test well hole and a second heat dissipation through hole, the heating verification assembly comprises a heating furnace, a heat conduction verification insertion block and a heating element, the heat conduction verification insertion block and the heating element are arranged in the heating furnace, and the heat conduction verification insertion block forms a plurality of detection holes. Third heat dissipation through holes are formed in the top of the heating furnace, and fourth heat dissipation through holes are formed in the bottom of the heating furnace. And the distribution board is arranged in the second cavity, fifth heat dissipation through holes are formed in the positions, corresponding to the second cavity, of the side plates, the heating element and the fan are electrically connected with the power source, and the heat dissipation performance of the portable dry well furnace is excellent.

The invention discloses a method for intercepting and draining shallow groundwater in a hillside area in a grading manner, which comprises the following steps of: drilling and surveying downwards from a slope surface in a hillside range needing to intercept and drain water, expanding and building a surveying well close to a slope top to form a drainage well, and pumping out the shallow groundwater; a plurality of interception and drainage channels are built at intervals in a grading mode from the side, close to the slope bottom, of the drainage well; and after the graded interception and drainage channel is constructed, the earth surface interception channel is constructed from the interception and drainage channel closest to the bottom of the slope to one side of the bottom of the slope by 50-100 m. The interception and drainage ditches are built in a grading mode according to the underground water amount, and the work amount can be effectively reduced; the underground water can be fully blocked and drained by grading interception and drainage, and the drainage effect is good; construction materials are easy to obtain, the construction process is simple, and the construction cost is low; multiple filtering effectively ensures that the drainage channel is smooth, and the service life is ensured; the device operates automatically, only the pumping well needs to be maintained, and the operation cost is low; after a certain interception and drainage channel fails, a new interception and drainage channel can be built nearby, and the scheme is convenient to maintain.

The invention relates to the technical field of mine slope monitoring, and provides an intelligent monitoring method for surface mine slope stability, which comprises the following steps: step 1, determining the position of a slope drainage well group; step 2, geological exploration; thirdly, the position of a drainage well is reasonably designed; 4, a drilling machine well completion technology is reasonably selected; 5, normal drainage requirements are guaranteed; 6, designing a deep displacement monitoring hole and a stress hole; and step 7, constructing an intelligent combined monitoring system capable of accessing remote monitoring. According to the method, deep integration of drainage well construction and monitoring is achieved, and the dual functions of efficient drainage and accurate monitoring are achieved. Water-containing stratum information is accurately mastered through an early-stage high-density electrical method or transient electromagnetic exploration, drainage well parameters are optimized in combination with a theoretical algorithm, and the drainage requirement is guaranteed. The well completion technology is combined with stratum conditions and monitoring equipment requirements, the equipment installation and survival effects are ensured, and automatic rainfall operation and real-time monitoring of water pressure and deep displacement are achieved in cooperation with an intelligent system.

This invention relates to a drainage well system for a foundation pit suitable for a ground-mounted waterproof curtain. The system includes a drainage well body positioned within the backfill area of ​​the foundation pit, located between the main structural wall and the ground-mounted waterproof curtain. The drainage well bodies are arranged at predetermined intervals within the backfill area. The outer facade of the main structural wall is provided with a waterproof layer. Each drainage well body includes a non-porous solid pipe section and a perforated filter section located below the non-porous solid pipe section. The perforated filter section is externally covered with a filter layer, and the surrounding hollow spaces of the filter layer are filled with graded filter media. The lower end of the drainage well body is positioned below the bottom of the foundation pit and above the stable waterproof layer. A pumping system is installed within the drainage well body to promptly pump out seepage water from the foundation pit when the water level within the drainage well body rises to a preset level. The pumping system is connected to the municipal stormwater drainage network. This invention can serve as a long-term drainage facility and also enables water resource reuse.

The utility model relates to temperature measurement calibration technical field, especially, relates to a temperature measurement calibration device, including dry well furnace, dry well furnace is installed on the removal dolly, be provided with height adjusting mechanism on the removal dolly, be provided with fine adjustment mechanism on height adjusting mechanism, be provided with the fixed disc for fixing temperature probe on fine adjustment mechanism. Compared with prior art, can keep temperature probe position stable in the measurement calibration process, avoided the operation of manual holding temperature probe, guaranteed the measurement calibration result accurate.

The utility model discloses a drainage well drainage pipe water level measuring device, and relates to the technical field of drainage wells. The drainage well comprises a drainage well body, an automatic retracting and releasing assembly and a measuring and counting assembly, a baffle is fixedly connected to the top of the drainage well body, a conveying pipe is arranged at the top of the baffle, and the bottom of the conveying pipe penetrates into an inner cavity of the drainage well body. Through the arrangement of the automatic winding and unwinding assembly, the measuring pipe and the brake mechanism can be opened, then the detection head drives the measuring rope to enter the conveying pipe due to the weight of the detection head, and the detection head is continuously unwound until the detection head is in contact with underground water, so that the ground surface and the underground water form a loop to be displayed on the universal meter; at the moment, the controller controls the brake mechanism to lock the winding roller, the audible and visual alarm is started to remind a worker that measurement is completed, the worker can record the measurement result, and the worker does not need to be located at the drainage well body all the time to observe and pay off.

The application discloses an auxiliary system for dry well furnace metering detection, and belongs to the technical field of instrument analysis and instrument measurement technology. The auxiliary system comprises an oil film self-adding test cavity and an oil infiltration device. The oil film self-adding test cavity and the oil infiltration device are located in the soaking block of the dry well furnace. The oil infiltration device comprises a sealing bead, a compression spring, an oil guide pipe and an oil injector. When a temperature probe is inserted into the oil film self-adding test cavity through the top receiving port, the temperature probe extrudes the sealing bead to compress the compression spring, so that the oil infiltration device performs an oil infiltration action. At this time, the heat conducting oil in the oil injector seeps out from the gap between the sealing bead and the oil guide pipe through the oil guide pipe. The heat conducting oil infiltrates the inner wall of the oil film self-adding test cavity through the spiral oil guide groove, so that an oil film is formed between the temperature probe and the inner wall of the oil film self-adding test cavity. The application realizes sufficient contact and heat conduction by forming the oil film, thereby effectively reducing the metering detection error.

The utility model relates to a sealing structure of a drainage well, which belongs to the technical field of drainage well construction and comprises a well casing, medium-coarse sand or graded sand is backfilled in the well casing, a plain concrete cushion is poured at the top of the well casing, and a first steel plate ring is embedded in the plain concrete cushion and positioned above the well casing. The utility model has the beneficial effects that through the use of the steel plate ring I, the purpose of blocking the underground water level for the first time can be realized, and the purpose of blocking the underground water level for multiple times can be realized by utilizing the water stop steel plate ring and the circular steel plate on the steel pipe; and the sealing performance between the water stop steel plate ring and the first steel plate ring can be improved through backfilling of medium-coarse sand or graded gravel, the overall stability is enhanced, a reliable post-sealing well construction method is provided under the condition that the underground water level cannot meet the dry groove operation and anti-floating requirements after water pumping of the drainage well within the foundation stopping range before foundation construction, and the construction cost is reduced. And underground water cannot flow into the foundation pit again.

The utility model belongs to the field of speed reducers, and discloses a speed reducer input dry well double-sealing structure which comprises a box body, an input shaft and an input gear, an input flange is sleeved on the input shaft on the box body, the input flange is provided with a bearing chamber, the input shaft is provided with a first tapered roller bearing and a second tapered roller bearing which are oppositely arranged in the bearing chamber, and the first tapered roller bearing and the second tapered roller bearing are arranged in a sealing mode. An oil seal step close to one end of the box body is arranged on the input shaft, a first framework oil seal is arranged on the oil seal step, a transparent cover covers the flange chamber of the input shaft, and a second framework oil seal is fixed on the transparent cover. The first framework oil seal on the oil seal step can isolate the bearing chamber from the inner cavity of the box body, grease in the bearing chamber and lubricating oil in the inner cavity of the box body are prevented from permeating each other, meanwhile, the transparent cover is arranged at the end of the bearing chamber of the input flange, the second framework oil seal is additionally arranged on the transparent cover, and the functions of leakage medium isolation and double protection can be achieved. And the reliability of the sealing structure of the speed reducer is obviously improved.

The utility model discloses a water stopping device for a drainage well, and relates to the technical field of drainage wells. The device comprises a cover plate, a fixing assembly and a shielding assembly, a conveying opening is formed in the front side of the top of the cover plate, the fixing assembly is arranged at the bottom of the cover plate and comprises a screw rod, the top of the screw rod penetrates to the top of the cover plate, the bottom of the screw rod is fixedly connected with a pressing block, trapezoidal blocks are arranged on the two sides of the bottom of the pressing block, and the trapezoidal blocks are arranged in the cover plate. And mounting frames are fixedly connected to the opposite sides of the two trapezoidal blocks. Through the arrangement of the fixing assembly, the screw can be rotated to drive the pressing block to move downwards to extrude the trapezoidal block, the trapezoidal block drives the mounting frame and the friction block to move after being extruded, the friction block is attached to the well wall after being moved, the cover plate is positioned and fixed through friction force, and external building waste and sundries are prevented from entering the well; and the drainage well is prevented from being blocked by sundries generated during excavation of the foundation pit.

To provide a nuclear power plant having a reinforced concrete double-shell reactor containment vessel, in which the pressure in an outer well is prevented from rising above a design pressure of the outer well even if process piping breaks between a dry well penetration and an outer well penetration.SOLUTION: In a nuclear power plant according to an embodiment, process piping passing between a dry well penetration 15 and an outer well penetration 24 of a double-shell reactor containment vessel 20 is surrounded by outer well protection means 27 to isolate the process piping from an outer well 32.SELECTED DRAWING: Figure 1

The invention discloses an unwatering well in a foundation pit and a construction method of the unwatering well, and relates to the technical field of unwatering well construction, the unwatering well in the foundation pit comprises a base located in the foundation pit, and a groove and an opening which extend in the horizontal direction are formed in the height below the elevation of the base; the hole channel is formed in the foundation pit in the vertical direction, is lower than the base and corresponds to the opening in position; the non-fine concrete pipe body is arranged in the hole channel; the water pumping equipment is arranged in the non-fine concrete pipe body; one end of the water drawing pipe is connected with an outlet of the water pumping equipment, the other end of the water drawing pipe extends upwards, passes through the opening and is bent and then laid in the groove, and the upper portion in the concrete pipe body and the opening are blocked through concrete. The integrity of the foundation raft can be improved, and the possibility of leakage of the foundation raft is reduced.

Various dry well temperature calibration systems, as well as other temperature control systems, are disclosed. The system can include a well configured to receive a unit under test, a heater configured to heat the well, and a temperature sensor configured to detect a temperature of the well. The system can include a helical airflow groove around the well. A venturi pump unit can be in fluid communication with the airflow groove. The venturi pump unit can be configured to draw a flow of air through the airflow groove, thereby cooling the well.

The invention discloses a near-slope mining method for a water-containing end slope of a strip mine. The near-slope mining method comprises the following steps: step adjustment; a combing area is determined, and temporary local unwatering wells are built; a profile steel supporting wall is built; building a water-blocking supporting wall; an auxiliary supporting wall is built; and mining in sections and recovering the water layer. According to the cement rock (coal) ash mixing pile, applicability transformation is conducted on a traditional cement soil mixing pile, the strength and impermeability of the cement rock (coal) ash mixing pile made of the gravel, the coal cinder and the coal ash are improved, meanwhile, adverse effects cannot be caused to the mining process, and meanwhile mine area waste can be consumed. Different mixing piles are arranged at different positions in a layered and classified mode, multiple functions of supporting, water prevention, supporting and water prevention and the like are achieved, building construction is conducted in different positions independently, the building construction process is simple, and a safe and stable slope environment and a dry construction environment are provided for slope mining. According to the temporary local drainage well, the excavation depth of the drainage well is reduced, the cost is saved, and the underground water in the mining area cannot be seriously damaged due to the local combing mode.

To provide a nuclear power plant in which the pressure in an outer well does not rise above the design pressure of the outer well even if a process piping breaks between a dry well penetration part and an outer well penetration part in a double-shell reactor containment vessel made of reinforced concrete. [Solution] The nuclear power plant according to the embodiment is characterized in that the process piping passing between the dry well penetration 15 and the outer well penetration 24 of the double-shell reactor containment vessel 20 is surrounded by an outer well protection means 27 to isolate it from the outer well 32.

Provided is a nuclear power plant that prevents the pressure in an external well from rising beyond a design pressure of the external well even if process piping is broken between a dry well penetration and an external well penetration in a double-shell reinforced concrete reactor containment vessel. A nuclear power plant according to an embodiment is characterized in that process piping passing between a dry well penetration (15) and an external well penetration (24) of a double-shell reactor containment vessel (20) is surrounded by an external well protection means (27) and isolated from an external well (32).