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200 results about "Leaking water" patented technology

Water flow intelligent monitoring system and method

The invention discloses a water flow intelligent monitoring system and method, and relates to the technical field of water flow intelligent monitoring, in combination with an actuator health degree evaluation and multi-target prediction control method, the characteristics of a valve and a water pump are finely described by arranging sensors and constructing a digital twinborn model; model predictive control or multi-agent reinforcement learning is adopted to dynamically generate a reliable and efficient control instruction; furthermore, through real-time closed-loop deviation detection and self-adaptive correction, delay, faults or communication abnormity of the actuator can be accurately dealt with; 4, quickly completing self-healing and fault-tolerant control by using a fault prediction and standby scheduling strategy to prevent failure diffusion; and 5, scenes such as rainfall flood, fire fighting and reclaimed water are incorporated into the same framework, and multi-scene coupled comprehensive water resource management is realized, so that water hammer impact and water leakage risks can be effectively reduced, and the safety of the water supply system under complex working conditions or equipment aging is remarkably improved.
Owner:JIAXING JIAYUAN TESTING TECH SERVICE CO LTD

Roof warehouse dividing seam leakage-proof structure and construction method thereof

A leakage-proof structure of a partition seam of a roof is arranged below the partition seam and used for preventing rainwater from leaking to the inner side of the roof through the partition seam, the flatness of the roof structure can be guaranteed by pre-burying the leakage-proof structure below the partition seam, and therefore the practicability and attractiveness of the roof are improved. The leakage-proof structure comprises a filling layer, an exhaust part and a leakage-proof assembly, the leakage-proof assembly is arranged below the warehouse dividing seam, the warehouse dividing seam is filled with the filling layer, the exhaust part is connected with the leakage-proof assembly, when leakage occurs in the warehouse dividing seam, leakage water flows into the leakage-proof assembly, and the leakage-proof assembly prevents the leakage water from further permeating into the roof. And then water vapor in the leakage-proof assembly is exhausted out of the leakage-proof structure through the exhaust part, the water vapor is prevented from being accumulated in the leakage-proof assembly, and therefore the leakage-proof performance of the bin dividing seam is further improved.
Owner:GESHAN CONSTR GROUP

Intelligent substation convenient to assemble

According to the intelligent substation convenient to assemble, protrusions in a protrusion assembly and rails in a rail set are correspondingly matched one to one, a protrusion assembly inlet is formed in the position, on a base, of one end of the rail set, the rail set on the base is longer than the protrusion assembly, and a baffle inserting groove is vertically formed in the position, close to the protrusion assembly inlet, of the rail set; the baffle is inserted into the baffle insertion groove to close the protrusion assembly inlet and fix the protrusion assembly. The cabinet has the advantages that the cabinet body and the base are assembled in an embedded mode, after the base is embedded, a solid is convenient to disassemble and install, the cabinet body is firmly fixed, and water leakage is not prone to occurring. And multiple cabinet bodies are installed and linked mutually, so that the stability is further improved.
Owner:SHANGHAI SHANGNENG POWER ENG DESIGN CO LTD

Permeable pavement water seepage test bed

The utility model relates to the technical field of permeable pavement water seepage tests, in particular to a permeable pavement water seepage test bed, which comprises a base, a water seepage test bed and a water seepage test bed, a test structure is mounted on the inner side of the base and comprises a water collecting cover, the water collecting cover is fixedly mounted on the inner side of the base, a grid plate is fixedly mounted in the top surface of the water collecting cover, a water barrel is movably mounted in the upper end of the support, and a guide rod is fixedly connected to the outer wall of the water barrel; a spring is fixedly connected to the outer side of the upper end of the guide rod, a sealing ring adheres to the bottom face of the water barrel, a positioning block is welded to the middle of the top face of the base, and a graduated water barrel is installed on the inner side of the positioning block. According to the utility model, the water collecting cover is matched with the grid plate, so that pavement samples with different sizes can be supported, and during a test, leaked water spots can be collected through the water collecting cover, so that the water spots can be uniformly discharged in the graduated water bucket, and the test can be ensured to be smoothly carried out.
Owner:JIANGSU MANATEE NEW MATERIAL CO LTD

Shield tunnel and station interface waterproof structure

The utility model discloses a shield tunnel and station interface waterproof structure, relates to the field of subway construction, and solves the problems that in actual engineering, along with the high-speed development of urban subways, more and more large-span underground excavated tunnels are arranged in parallel, the design of a station interface structure and a shield tunnel interface is complex, and the construction cost is low. The problems that two structures with different stress modes are prone to water leakage and discordance at a connector, seeping water cannot well flow out of a drainage ditch from the top, water at the position of a bottom plate often permeates into the position of a ballast bed, and damage is prone to being caused are solved. The system is technically characterized by comprising a shield tunnel and a station body; the first blocking structure is installed on the shield tunnel and the station body, and the first blocking structure is used for blocking; and the second blocking structure is installed on the shield tunnel and the first blocking structure, and the second blocking structure is used for blocking. The leakage water can be timely discharged, the structure is relatively simple, and the use is convenient.
Owner:中铁吉林投资建设有限公司 +1

Water collecting device for pipeline distributed optical fiber leakage monitoring

The invention belongs to the technical field of pipeline safety monitoring, and particularly relates to a water collecting device for pipeline distributed optical fiber leakage monitoring, and the water collecting device comprises a pipeline, a vibration monitoring optical fiber, a wrapping assembly, a water collecting assembly and a conduction assembly. In addition, a flow guide opening of a water collecting box is matched with a water receiving plate to ensure that trace amount of seepage water is accurately guided to a monitoring point, leakage water drops can be monitored in time through a vibration monitoring optical fiber, and the water seepage monitoring accuracy is improved. The vibration conduction structure further enhances the optical fiber sensing sensitivity, meanwhile, the silica gel belt and the stainless steel rolling belt can be correspondingly adjusted according to the diameter of the pipeline and the shape of the welding seam, the cost is controllable, and installation is convenient.
Owner:HANGZHOU WATER DATA INTELLIGENCE TECH CO LTD

Prefabricated waterproof underground pipe gallery

The invention discloses a prefabricated waterproof underground pipe gallery, and relates to the field of pipe galleries, the prefabricated waterproof underground pipe gallery comprises a pipe gallery main body, a sewage pipe bin, heating power bins, an electric power bin plate and a tail end plate, the sewage pipe bin and the two heating power bins are arranged on the lower portion of the interior of the pipe gallery main body, and the sewage pipe bin is located between the two heating power bins; the electric power bin plate is integrally formed on the upper portion of the inner wall of the pipe gallery body. According to the prefabricated waterproof underground pipe gallery, the parallel angle of the pipe gallery main body is changed after the pipe gallery is laid, the trouble of angle adjustment during laying and butt joint is omitted, swing buffering of the pipe gallery main body is achieved through contraction of the damping springs and the damping shock absorbers, the pipe gallery main body is kept in a stable state, and the construction efficiency is improved. The pipe gallery is prevented from being damaged due to impact, leaked water is guided and discharged, water accumulation in the pipe gallery during water leakage is prevented, ventilation between the pipe gallery shell and the pipe gallery body is achieved, the requirement for drying of the pipe gallery body is met, and the situation that metal components are corroded and accelerated due to the fact that the pipe gallery is humid is prevented.
Owner:JINAN URBAN CONSTRUCTION GROUP CO LTD +1

Clothes processing equipment

A laundry treating apparatus is provided. The laundry treating apparatus includes: a base; the water collecting piece is connected with the base, and the water collecting piece is used for collecting condensate water; a condensate water treatment device; the conveying assembly comprises a pump and a conveying pipeline, and the conveying pipeline is used for conveying the condensate water in the water collecting piece to the condensate water treatment device; wherein the base is provided with a restraining structure, and the restraining structure is configured to restrain the conveying pipeline. According to the conveying assembly, the restraining structure on the base is configured to restrain the conveying pipeline, so that the problem that the conveying pipeline swings due to vibration can be solved, the connecting reliability of the conveying pipeline of the conveying assembly can be improved, the probability that the conveying assembly leaks water is lowered, and noise of the conveying pipeline is lowered; and the comfort and the reliability of the clothes processing equipment used by the personnel can be improved.
Owner:WUXI MEIZHI ELECTRIC CO LTD

Prefabricated concrete module suitable for fabricated building

The utility model relates to a prefabricated concrete module suitable for a fabricated building. The prefabricated concrete module comprises a prefabricated top plate, a prefabricated bearing component perpendicular to the prefabricated top plate and a connecting structure used for connecting the prefabricated top plate and the prefabricated bearing component. The connecting structure comprises a top plate connecting piece, a grouting formwork and a grouting layer. The top plate connecting piece comprises a first embedded part, a rigid connecting piece and a second embedded part; the two vertical ends of the rigid connecting piece are welded to the first embedded part and the second embedded part correspondingly, a first filling groove is formed in the lower edge of the prefabricated top plate, and a second filling groove is defined by the inner wall of the grouting formwork, the top wall of the prefabricated bearing component and the end wall of the prefabricated top plate; the first filling groove is communicated with the second filling groove, the first filling groove is filled with a filling layer, and the second filling groove is grouted to form a grouting layer; the connecting structure has the beneficial effects that the technical problems that the construction difficulty is high and the joint of the components is easy to crack and leak water when the prefabricated top plate in the concrete module is connected with the beam component or the wall component and the like are solved.
Owner:安徽海龙建筑工业有限公司 +1

Pipeline leakage monitoring method and device, terminal equipment and storage medium

This application relates to the field of water supply network monitoring and leakage control technology, and provides a pipeline leakage monitoring method, device, terminal equipment, and storage medium. The method includes: acquiring first time-series noise data of the pipeline uploaded by multiple first monitoring devices; identifying leaks in the pipeline based on the first time-series noise data to obtain at least one second monitoring device that triggers a leakage event; wherein the second monitoring device is included within the first monitoring device; acquiring the first pipe segment monitored by each second monitoring device and the corresponding first material information of the first pipe segment; and calculating the probability distribution of the leakage point and the leakage impact area based on the first material information and second time-series noise data corresponding to each first pipe segment. This can improve the accuracy of leak point location and visually present the leakage range using a probability cloud map, realizing intelligent, visual, and efficient operation and maintenance of water supply pipeline leakage monitoring.
Owner:SHENZHEN ANSO IOT CO LTD

Cold and hot water unit and outdoor unit thereof

The utility model discloses a water chiller-heater unit and an outdoor unit thereof. The shell is provided with a heat exchange cavity and a mounting cavity which are sequentially arranged in the left-right direction; the heat exchanger and the fan module are arranged in the heat exchange cavity; the electric control module, the fluorine path module and the water path module are arranged in the mounting cavity, the electric control module is located on the upper side of the fluorine path module, and the water path module is located on the lower side of the fluorine path module, so that mutual interference of the fluorine path module and the water path module in the assembling process is reduced, and the assembling difficulty of the outdoor unit is reduced; moreover, the water path module is located below the electric control module, the fluorine path module separates the water path module from the electric control module, mutual isolation of the water path module and the electric control module is completely achieved, in this way, when the water path module leaks, leaked water cannot splash upwards to the electric control module, and therefore the electric control module is not prone to being damaged by water.
Owner:BDR THERMEA HVAC CO LTD

Water supply device with leak-proof structure

The utility model relates to the technical field of concrete production, in particular to a water supply device with a leakproof structure, which comprises a box body, a plurality of supporting legs are mounted at the bottom of the box body, an observation window is mounted at the bottom end of one side of the box body, a water outlet is mounted at the bottom end of the other side of the box body, and a cover door is hinged to the top of the box body. A door handle is installed at one end of the top of the cover door, a maintenance assembly is installed in the middle of one end of the upper surface of the box body, an alarm assembly is installed in the middle of one side of the box body, and a filtering assembly is installed at one end of the maintenance assembly. According to the improved water supply device, waste of a large amount of water resources is avoided, meanwhile, leaked water can be prevented from being accumulated into the water supply device, potential safety hazards such as electric leakage and short circuit are avoided, management personnel can be reminded in time to conduct maintenance work, impurities in water can be filtered out during water supply work, and the service life of the water supply device is prolonged. And the problem of device damage caused by impurity blockage is effectively avoided.
Owner:四川恒基混凝土有限公司

Sectional type heating and ventilation radiator

The utility model discloses a sectional type heating and ventilation radiator which comprises a mounting frame, a plurality of radiating fins are detachably arranged on the mounting frame, connecting pipes are arranged at the two ends of the radiating fins and the two ends of the mounting frame, a connecting structure is arranged on the mounting frame, and the connecting pipes are connected with the connecting structure. The connecting structure comprises a middle pipe, a supporting ring and a mounting ring, so that the two cooling fins can be conveniently connected through the connecting structure; the supporting rings, the mounting rings and the connecting pipes are matched with one another, a collecting structure is arranged at the bottom of the mounting frame, the collecting structure comprises a collecting box, a first heat conduction pipe and a second heat conduction pipe, a water drainage opening is formed in the collecting box, and the collecting box is connected with the mounting frame through bolts. And therefore, leaked water can be conveniently absorbed through the collecting structure.
Owner:TIANJIN CHANGHONG IND

Glass rotameter capable of being cleaned in place

The utility model discloses a glass rotameter capable of being cleaned in place, and relates to the technical field of flowmeters, the glass rotameter capable of being cleaned in place comprises a box body used for carrying out emergency treatment on a leaked water source in a device, the box body comprises a protection box, and a rubber bag is pasted on the inner wall of the protection box through waterproof glue. And the rubber bag is filled with water-absorbent resin particles. When liquid leakage occurs in the device, a water source can enter the rubber bag through the mounting groove, then the water-absorbent resin particles absorb water to generate volume expansion, and the water-absorbent resin particles with volume expansion can enable the rubber bag to generate volume expansion, so that the rubber bag is attached to the outer side of the inner pipe, and the function of emergency treatment on the leaked water source is achieved.
Owner:CHANGZHOU CHENGFENG FLOWMETER

Demonstration device for channel leakage influence

The utility model discloses a demonstration device for channel leakage influence. The demonstration device comprises a water tank, a channel and a farmland simulation tank, wherein the channel is of a three-section structure; a mixing mechanism is installed in the water tank, the opposite sides of the water tank and the farmland simulation tank are communicated with a first gate valve and a second gate valve respectively, the liquid outlet end of the first gate valve is communicated with a first flow meter, the liquid inlet end of the second gate valve is communicated with a second flow meter, and the channel comprises a first U-shaped channel, a second U-shaped channel and a third U-shaped channel. The device has the advantage of being convenient to use, and solves the problems that in the using process of an existing demonstration device for the channel leakage influence, the farmland water flow movement process and the irrigation effect are inconvenient to display, the influence of different leakage conditions on the movement process and the irrigation effect cannot be reflected, leaked water is difficult to collect, and the effect is poor. A user is influenced to know the amount of leaked water, and the demonstration effect in the use process of the demonstration device is reduced.
Owner:TAIYUAN UNIVERSITY OF TECHNOLOGY

A multi-sensor fusion pipeline condition monitoring system and method

This invention relates to the field of pipeline monitoring technology and discloses a multi-sensor fusion pipeline condition monitoring system and method. This invention uses machine learning-based technology to fuse and analyze data from multiple sensors, including sound, visible light, and thermal imaging, to monitor the condition of water pipelines. It can detect leaks and other anomalies in water pipelines in real time. Multi-sensor fusion verifies anomalies from multiple dimensions and angles, ensuring the accuracy of anomaly detection. Leakage points are quickly located through sensor and detection point coordinate tracking. A more advanced deep learning feature extraction network and high-precision machine learning algorithms process data from various sensors in real time, thereby better understanding the global structure of the image and enhancing the network's feature extraction capabilities.
Owner:SHENZHEN TIEYUE ELECTRIC CO LTD

Automatic pressing device for packing seal of valve rod of stop valve

The utility model provides a stop valve stem packing seal automatic hold-down device, including: valve body, protection device and extrusion device, protection device includes: protection cover, first seal cartridge, seal ring and seal ring, the protection cover is provided in the valve body, first seal cartridge is connected to the surface of protection cover in sliding mode, and the first seal cartridge is connected to the surface of the seal ring in sliding mode. The sealing ring is fixedly connected to one end of the first sealing sleeve, the sealing ring is fixedly connected to one end of the first sealing sleeve, the extrusion device comprises an adjusting groove, an extrusion spring and an adjusting sleeve, the adjusting groove is formed in the protective sleeve, and the extrusion spring is arranged in the adjusting groove. According to the automatic pressing device for the packing seal of the valve rod of the stop valve, the protective sleeve is matched with the first sealing sleeve, the sealing ring and the sealing ring to seal the extrusion spring, so that the situation that the spring is eroded by leaked water or other conveyed objects when the packing is abraded and leaks is prevented, and the service life of the extrusion spring is prolonged.
Owner:SUZHOU KEDI FLUID CONTROL EQUIP

Suspension water impeller with built-in vertical shaft

The utility model relates to the technical field of hanging water impellers, and discloses a vertical shaft built-in hanging water impeller which comprises a hanging water impeller shell, a communicating water pipe is arranged at the bottom of the hanging water impeller shell, a bottom end connecting piece is arranged at the bottom of the communicating water pipe, and a transverse pipe is arranged on the side face of the communicating water pipe. An inner flow pushing device is arranged in the suspension flow pushing device shell, a speed adjusting device is arranged at the bottom of the inner flow pushing device, and the speed adjusting device comprises a waterproof stepping motor, a connecting column rod, a connecting disc, a middle sponge mat, a magnetic attraction piece, a magnet piece and a connecting strip plate. According to the vertical shaft built-in type suspended water impeller, the speed adjusting device is arranged, the connecting disc is driven to deviate, gaps are continuously leaked out for water entering, the water flowing speed is the highest when the paper connecting disc and the water flowing groove are staggered, the water flowing speed can be controlled, the rotating speed of the water impeller can be automatically adjusted according to the water flowing speed, the water flow and the water quality change condition, and the water treatment effect is improved; the use effect is good.
Owner:YUNNAN XINGANG QIANHE ENVIRONMENTAL PROTECTION MATERIALS TECHNOLOGY CO LTD

Leakage-proof building water supply and drainage structure

The invention relates to a leakage-proof building water supply and drainage structure, which relates to the technical field of building water supply and drainage, and comprises a drainage pipe mounted on a roof, an anti-permeation sealing ring mounted between the drainage pipe and the roof and used for sealing, a filtering mechanism mounted on the drainage pipe, and a sealing mechanism mounted on the roof, the sealing mechanism comprises a transparent collecting box which is mounted on the drainage pipe and is used for collecting leaked water, a transparent storage box which is arranged in the transparent collecting box, an air bag which is arranged between the anti-permeation sealing ring and the roof, and an inflating material which is filled in the transparent storage box and can react with the water to generate gas; the lower end of the transparent storage box is provided with a water inlet for water to enter, and the top of the transparent storage box is provided with an air delivery pipe communicated with the air bag. According to the structure, when the gap between the drainage pipe and the anti-permeation sealing ring is enlarged, the enlarged gap can be sealed, and water is prevented from permeating a house.
Owner:NINGBO XINRUI CONSTRUCTION CO LTD

Underwater foundation of tower crane

The utility model relates to the technical field of tower crane foundations, in particular to a tower crane underwater foundation, a steel casing is arranged at the upper end of the tower crane foundation, the lower end of the steel casing is connected with the upper end of the tower crane foundation through bolts, and a concrete reverse ridge is arranged on the side edge of the lower end of the steel casing in an attached mode. The concrete reverse ridge is arranged at the upper end of the tower crane foundation, meanwhile, a supporting assembly and a pumping assembly are arranged in the steel casing, the supporting assembly is used for supporting the steel casing, and the pumping assembly is used for pumping leaked water in the steel casing. Through the combined use of the foundation standard knot, the longitudinal stiffening partition plates and the transverse stiffening partition plates, the structural stability and the bearing capacity of the steel casing are remarkably improved, stable operation of a tower crane in an underwater environment is ensured, meanwhile, the concrete reverse ridge arranged on the side edge of the lower end of the steel casing effectively resists water pressure and soil pressure, and the service life of the steel casing is prolonged. Therefore, the risk of water permeation is reduced, and the water tightness and the stability of the tower crane foundation are further ensured.
Owner:CHINA CONSTR EIGHTH BUREAU TIANJIN CONSTR ENG CO LTD

Protective device for water supply and drainage pipeline of civil air defense building

The invention relates to the technical field of building water supply and drainage, and discloses a protective device for a water supply and drainage pipeline of a civil air defense building, the protective device comprises a cover cylinder and a protective module, a containing cavity is formed in the cover cylinder, the protective module comprises a partition plate, a traction rod, a plug, a supporting rod, a damper and an ejector rod, and the partition plate capable of closing the top of the containing cavity is slidably arranged in the containing cavity; the lower portion of the partition plate is fixedly connected with a traction rod, a flow guide opening is formed in the second direct flow section, a plug detachably matched with the flow guide opening is fixed to the end of the traction rod, a supporting rod is fixed to the top of the cover cylinder, and a damper is fixed to the supporting rod. The partition plate is jacked and expanded under pushing of water, meanwhile, the partition plate ascends on the upper side of the partition plate to drive the ejector rod to upwards jack and extrude the damper, high-speed impact generated by leaked water flow is buffered through the action of the damper, the impact of the leaked water flow is prevented from continuously acting on the leakage position, and the leakage range is expanded.
Owner:JIANGSU QINYU CONSTR ENG CO LTD

Method for maintaining thermal state of VVER nuclear power unit through atmospheric relief valve

The invention belongs to the technical field of nuclear power station operation, and particularly relates to a method for maintaining a thermal state of a VVER nuclear power unit through an atmosphere release valve. Comprising the following steps that 1, after a primary loop reaches a hot state, the steam sides of four steam generators are separated from a main steam collecting pipe; 2, the temperature of the first loop is maintained within the thermal state temperature range through an atmosphere release valve; 3, primary loop leakage is supplemented in the form of distributing water to the drainage collecting box, and the liquid level of the primary loop is maintained; and 4, after the secondary loop rebuilds vacuum, the steam pipelines of the four steam generators are communicated with the main steam collecting pipe. The method has the beneficial effects that the extra cooling and heating process of the reactor after defect elimination can be avoided, and waste liquid generated in the process is greatly reduced; extra cooling and heating processes of the reactor can be avoided, and the unit starting time after overhauling is greatly shortened; the problem that the degasser cannot distribute water and only can supplement boric acid during a thermal state can be solved.
Owner:JIANGSU NUCLEAR POWER CORP

Circular construction method for temporary drainage ditches in engineering

The present invention discloses a cyclic construction method for an engineering temporary drainage ditch, which includes excavating a trench, pouring a concrete cushion, laying a PE drainage ditch, installing a prefabricated drainage ditch interface reinforcement component, filling soil, and pouring a concrete slope; demolishing the concrete slope and excavating the soil on both sides of the PE drainage ditch; disassembling and recycling the prefabricated drainage ditch interface reinforcement component; and disassembling and recycling the PE drainage ditch. The cyclic construction method for the engineering temporary drainage ditch of the present invention can protect the interface part of the drainage ditch, prevent the inner extrusion and outer deformation of the drainage ditch interface during operation, avoid the offset, leakage or damage of the interface, contribute to the recycling and reuse of the PE drainage ditch, and achieve the purpose of environmental protection.
Owner:GUANGZHOU ENG CONTRCTOR GRP LTD

Taper pipe thread type poultry drinker adopting spherical sealing mode

The invention relates to the technical field of poultry drinkers, in particular to a spherical sealing taper pipe thread type poultry drinker, which comprises a drinking unit, the drinking unit comprises a shell, a valve body is arranged in the shell, a first water control cavity is arranged in the valve body, the bottom of the first water control cavity is communicated with a second water control cavity, and the bottom of the second water control cavity is communicated with the conical pipe thread type poultry drinker. The bottom of the second water control cavity communicates with a rolling ball cavity, a first sealing ring is arranged in the rolling ball cavity, and a water control mechanism used for controlling drinking water to enter the valve body is installed in the first water control cavity. The reset action of the steel ball body can be smoother, the water flow speed is uniform and stable, the situation that poultry pecks and swings a head repeatedly due to unstable water flow is reduced, the water flow is controlled to be in a low-pressure outflow state all the time, the situation that feet or / and breasts of the poultry make contact with leaked water to cause diseases is avoided, water resources are saved, and the water resource utilization rate is increased. And the cleanliness around the device is improved.
Owner:XIAN QINGAN POULTRY EQUIP CO LTD

Sealing structure of motor water cooling flow channel and motor

The utility model relates to the technical field of motors, in particular to a sealing structure of a motor water-cooling flow channel and a motor, the motor comprises a casing and end covers arranged at two ends of the casing, the casing comprises an inner casing and an outer casing, the outer casing penetrates through the inner casing along the axial direction, and a water-cooling flow channel is formed between the outer casing and the inner casing. The sealing structure comprises a first sealing ring and a second sealing ring; the first sealing ring is arranged between the outer peripheral wall of the inner shell and the inner peripheral wall of the outer shell in a sleeved mode and is pressed between the inner shell and the outer shell in the radial direction. The second sealing ring is arranged between the inner end face of the end cover and the end face of the inner shell and axially pressed between the inner shell and the end cover. Therefore, even if the first sealing ring is damaged and loses efficacy, and the cooling water in the water cooling flow channel leaks from the joint of the inner shell and the outer shell, the second sealing ring can prevent the leaked water from flowing into the motor from the joint of the end cover and the inner shell, so that the sealing reliability of the whole water cooling flow channel is improved.
Owner:ZHEJIANG DA NONG IND CO LTD

Systems and methods for detecting leaking pipes

A system and method for identifying the sources of leaking water in a home or other facility. In particular, the embodiments provide devices that can dye water in a plumbing system to provide a visual indicator of water that has leaked from a pipe. These include manifold assemblies with integrated injection devices, as well as stand-alone injection devices that can be coupled to individual pipes and / or pipe connectors.
Owner:UNITED SERVICES AUTOMOBILE ASSOCIATION (USAA)

Heat insulation waterproof structure for building construction

The utility model provides a heat insulation waterproof structure for building construction, which comprises cross-shaped bases and convex heat insulation waterproof blocks, one convex heat insulation waterproof block is fixedly arranged between every two adjacent cross-shaped bases, and the end faces of every two adjacent cross-shaped bases are fixedly communicated through two hollow butt joint pipes; after splicing is completed, the splicing seam can be sealed through the structure of the splicing joint, the splicing seam is prevented from cracking and leaking water, and therefore the whole splicing joint is safer and more reliable.
Owner:SONGYANG JUNBO ENGINEERING CO LTD

Device for preventing a faucet from leaking water and flowing back

A device for preventing a faucet from leaking water and flowing back is disclosed, including an outer cover and an inner lining member, the inner lining member is provided in the outer cover. The outer cover is configured to cover a wall at a back end of the faucet to prevent water from flowing back, the inner lining member is provided with a plug hole for a water pipe to be plugged in, and the liner lining member is formed with a waterproof section on an outside of the plug hole to prevent water from flowing back into the wall. Through a combination design of the outer cover and the inner lining member and with assistance of an annular washer, thereby realizing effective shielding and waterproofing of the wall at the back end of the faucet.
Owner:LI LONG

Double-tunnel series connection type drainage system and construction and operation method thereof

The invention discloses a double-tunnel series connection type drainage system and a construction and operation method thereof, and belongs to the technical field of tunnel drainage. The system comprises a high-elevation tunnel and a low-elevation tunnel, an existing central circular pipe ditch A is formed in the high-elevation tunnel, an existing central circular pipe ditch B and a newly-built drainage ditch are formed in the low-elevation tunnel, the existing central circular pipe ditch B is located between transverse channels and the newly-built drainage ditch, transverse drainage branch ditches are formed in the lower sides of the transverse channels, and transverse drainage branch ditches are formed in the lower sides of the transverse channels. One end of each transverse drainage branch ditch is communicated with the existing central circular pipe ditch A through a connecting well, the other end of each transverse drainage branch ditch is communicated with the existing central circular pipe ditch B and the newly-built drainage ditch, a water baffle is arranged at the junction of the existing central circular pipe ditch B and the transverse drainage branch ditches, and the water baffle is located on the downstream side of the corresponding junction. The phenomenon of full drainage in the existing central circular pipe ditch B can be effectively avoided, so that accumulated water at the back of the tunnel lining can be timely and smoothly drained, and water leakage of the lining is avoided.
Owner:GUIZHOU TRANSPORTATION PLANNING SURVEY & DESIGN ACADEME