341results about How to "Reduce water leakage" patented technology

A humidity regulating unit including a heating element housed inside a covering that has a porous retaining wall through which water does not pass but steam or gas passes. In one embodiment, the covering has several bulges along the circumference of the heating element that protrudes outward from the outer surface of heating element to form several water routes along the outer surface of heating element. The covering and the outer surface of heating element are bonded between adjacent water routes so that the outer surface of heating element is used as part of the wall of the water routes. As a result, the size of heating element does not restrict making the cross section of each water route as small as possible, and even if the covering breaks, the amount of water leaking from the humidity regulating unit is minimized.

A basement engineering waterproof and drainage method is provided. The wall footing of the outside wall in basement engineering is embedded in watertight or micro-watertight soil rock layer or cement soil layer. The wall footing intercepts water by a thin-part structure. The cushion of the basement engineering soleplate and the falling layer of the top board are composed of combined water-proof layers. The late poured band, the movement joint and the horizontal construction joint at the lower part of the outside wall are treated by a water-proof structure combined with waterproofing measures. The basement engineering is provided with a drainage system. The groundwater and surface water at the soleplate are drained into city drainage pipelines via a soleplate part of the drainage system. The rainwater of overburden layer bottom of the top board is then drained into city drainage pipelines via the indoor part of the drainage system. The invention is designed by adopting a one-body method of arranging the basement engineering waterproofing, drainage and anti-floating as well as underground engineering space enclosing structure and pipelines, thereby shortening the construction period, reducing the engineering cost, increasing the durability and reliability of underground building space enclosing structure and waterproof layer as well as pipelines.

Metal panel roofs, and load support structures for supporting loads on such roofs. Side rails provide primary support for loads on such roofs. The side rails can be fabricated from sheet metal or can be extruded. A side rail includes a standing seam cavity which is lowered, and covers, the standing seam. Side walls of the standing seam cavity. An upstanding web extends up from the cavity, and lower shoulders may extend laterally, optionally downwardly, from the walls which define the cavity, on either one side, or both sides, of the cavity. Building roof insulation can extend up through an aperture in the roof, surrounded by such load support structure, and extend up to the top of the side rail, thus providing a thermal break between the load support structure elements and the space surrounded by the load support structure.

Metal panel roofs, and load support structures for supporting loads on such roofs. Side rails provide primary support for loads on such roofs. The side rails can be fabricated from sheet metal or can be extruded. A side rail includes a standing seam cavity which is lowered, and covers, the standing seam. Side walls of the standing seam cavity. An upstanding web extends up from the cavity, and lower shoulders may extend laterally, optionally downwardly, from the walls which define the cavity, on either one side, or both sides, of the cavity. Building roof insulation can extend up through an aperture in the roof, surrounded by such load support structure, and extend up to the top of the side rail, thus providing a thermal break between the load support structure elements and the space surrounded by the load support structure.

The invention discloses an uncured polyurethane waterproofing coating and a preparation method thereof, belonging to the technical field of polyurethane waterproofing coatings. The uncured polyurethane waterproofing coating is prepared from the following raw materials in percentage by weight: 13-20% of prepolymer, 30-65% of asphalt, 1.0-1.5% of latent curing agent, 3-15% of compatilizer, 2-9% of thermoplastic elastomer and 0-3% of powder stuffing, wherein prepolymer is a substance synthesized by reaction between polyether and isocyanate. The uncured polyurethane waterproofing coating mainly aims to improve the material proportion and polymerization process of polyurethane, and the problem that a hot-melted asphalt material is needed to be heated by using a machine is solved; the uncured polyurethane waterproofing coating is convenient in construction and good in flowability; the viscosity of the constructed material can be automatically enhanced, so that the constructed material can become an elastic plastic body and a favorable waterproofing layer without internal stresses; in addition, the uncured polyurethane waterproofing coating can be well bonded with a coiled material and can be compounded to be waterproof so as to form a waterproofing layer capable of overcoming tension fracture caused by basement layer cracking and preventing puncturing; the uncured polyurethane waterproofing coating is simple and convenient in process, rapid in construction, free of maintenance, high in working efficiency and capable of becoming the development direction of building waterproofing in the further.

The invention relates to a sprayed concrete which contains cement, sand-stone mixture, steel fiber, accelerating agent and special additive. The special additive is inorganic neutral nano-sized zeolite containing SiO2 and Al2O3 as major chemical components, wherein the weight ratio of water to cement to sand-stone mixture to steel fiber is (8.5-8.6):(16.1-20.0):(69.6-73.5):(1.7-1.8), the special additive accounts for 5-10% the weight of cement, and the accelerating agent accounts for 6-8% the weight of cement. When used in water-rich areas, the sprayed concrete can cure within 1minute and exhibits strength after 10 minutes, the rebound rate of the sprayed concrete is reduced to 7.8% from 15% in the common wet-jetting concrete, the binding strength reaches 3.5 MPa, and the spray thickness is more than 0.3 m at each time. The invention reduces the workload of lining concrete construction and avoids water leakage, and also has the advantages of rapid construction, good flexibility and improvement in working environment inside tunnel.

The invention provides a top gun applied to steel production in the technical field of steel production. The top gun comprises a Laval gun head (1), a gun head center pipe (2), a fuel pipe (3), a marine riser (4), an outer pipe (5), an oxygen pipe (6), a flame detector installing hole (7), an isolation device (8), a gun body flexibility regulating device (9), a hanging device I (10), a cooling water outlet pipe (11), a cooling water inlet pipe (12), a combusting oxygen inlet pipe (13), a fuel inlet pipe (14), a nitrogen inlet pipe (15), a hanging device II (16) and a center oxygen inlet pipe(17), wherein the Laval gun head (1) of the top gun is made of TU2 oxygen-free copper materials, and a chromium electroplating hard layer is additionally arranged on the inner surface of the gun head center pipe (2). The top gun can prolong the service life of the gun head, can increase the powder injecting and oxygen blowing quantity in unit time, shorten the power injecting and oxygen blowing time, and lower the manufacture cost of the top gun.

A curtain having integrated pockets therein for housing water sensitive items, principally photographs, in a substantially water impenetrable manner is provided. The curtain panel is constructed with an exterior surface having at least one substantially water tight pocket constructed therein that can readily be utilized to house and display the photograph in a dry environment. The panel may be composed of a cloth or may be a polymeric material. Water tight construction of the pocket is facilitated due to a bottom or lower entry slit or bottom slit-opening provided on a lower edge of the pocket along with the utilization of a fastener mechanism assembly located on the lower edge or bottom slit-opening.

A control unit using distributed node network for underwater robot features that the CAN network is used as the core of distributed control. It is composed of the master node consisting of computer host and CAN interface, and the CAN network nodes based no single-chip computer and including system state detecting node, device power supply control mode, power supply managing node, motor control node, emergency treating node, data acquisition node, and serial-pore device node.

The embodiment of the invention discloses a ceramic valve element achieving double-path water output. The ceramic valve element comprises a valve element shell, an adjusting handle, a drive plate, a moving sheet, a static sheet, a sealing piece and a base from top to bottom. The static sheet is provided with a hot water inlet, a hot water outlet, a mixed water inlet, a first gear water outlet and a second gear water outlet which are connected with pipelines. Three flow guide channels are arranged on the moving sheet, and the flow guide channels of the moving sheet are driven by rotating the adjusting handle of the ceramic valve element to match the static sheet to form a water output closing state or a first gear water output state or a second gear water output state. A spring hole is formed along the end face of the drive plate, and a gear collision bead and a spring are arranged in the spring hole. A gear pit is arranged on the top wall of the valve element shell, and the gear collision bead is located in the gear pit in a pluggable manner along with rotation of the drive plate. According to the ceramic valve element achieving double-path water output, the wear resistance and ageing resistance are improved, the service life is prolonged, locating and mounting are convenient, and processing is easy.

The invention provides a real-time energy consumption monitoring system for multi-nodes of a wireless sensor network in a working environment, which uses a WiFi network as network connection of the system. The monitoring system comprises wireless sensor nodes (5), an energy consumption measuring unit (4), a wireless router (3), and a data server (2), wherein users (1) access the data server (2) of the system by internet, the data server is connected with the wireless router, and the energy consumption of the wireless sensor nodes is collected by the measuring unit and then sent to the wireless router by a WiFi interface. The system has small volume, can move, is easy to access into a wireless sensor network, and has no interference to node operation. The invention can be used for measuring energy consumption of nodes of the wireless sensor network in a working environment.

The invention discloses a method for determining a duct piece splicing point position of a universal ring for subway shield construction. The method comprises the following steps: performing shield tunneling construction on a constructed tunnel from back to front along the central axis of the tunnel by adopting a shield tunneling machine; after a ring of the shield tunneling construction is completed, performing shield duct piece splicing construction; before any ring of shield duct piece splicing construction, determining the duct piece splicing point position of shield duct pieces of the current ring first, wherein the method for determining the duct piece splicing point position comprises the following processes: firstly, determining selectable splicing point positions; secondly, determining selection influence indexes and weight coefficients thereof: respectively determining the three selection influence indexes which influence the selection of the duct piece splicing position point and the weight coefficients thereof; thirdly, performing selectivity evaluation on the selectable splicing position points: respectively evaluating the selectivity of each selectable splicing position point according to a weight coefficient method, and determining the duct piece splicing point position of the current shield duct piece. The method disclosed by the invention is simple in step, reasonable in design, convenient to implement and good in using effect, and can determine the splicing point position of the duct pieces of the universal ring easily, conveniently and accurately.

This invention relates to a water-save time delay valve device in toilet in which, a center film valve core capable of concave-convex floating is mounted on the inlet valve base shaped in a round concave glue piece, an orifice nozzle is insertedin the center with a through needed in the orifice, a decompressing valve is set on an abnormal inner cover implied solid button made of compound material, rigid outside and soft inside, changeable by concave and convex. The decompressing valve is open or close either by hand or foot when fixing the valve on the ground since the ground pollute can't enter into the solid implied button.

The invention relates to a water leakage detection and control system used together with a water purifier. The water leakage detection and control system used together with the water purifier comprises a water source pipe, the water purifier and a water leakage detection and control device, wherein the water leakage detection and control device is positioned on a water inlet pipe by which the water source pipe is connected with the water purifier; the water leakage detection and control device comprises a water source valve, a sensor and a first control circuit board; and the water purifier comprises a water inlet valve and a second control circuit board. A detection method comprises the steps of: when the flow, pressure or flow velocity change rule of water in the water inlet pipe accords with the set water flow, pressure or flow velocity change rule, judging that water enters the water purifier normally and keeping the water source valve open; and when the flow, pressure or flow velocity change rule of the water in the water inlet pipe does not accord with the set water flow, pressure or flow velocity change rule, judging that the water inlet pipe of the purifier or the purifier leaks and closing the water source valve. The water leakage detection and control system used together with the water purifier and the detection method have the advantages of effectively controlling the water inlet pipe, reducing the leakage risk to the minimum degree and solving the technical problem which is not solved for a long time in the water purifier industry.

The invention discloses a construction method for treating a rock mass cavity without formworks in tunneling. The method includes the following steps of firstly, arranging an inner protection layer and an outer protection layer; secondly, constructing a protection arch, wherein concrete is poured between the inner protection layer and the outer protection layer to form the protection arch; thirdly, conducting chamber excavation and preliminary support construction, wherein tunneling chamber excavation and preliminary support construction are conducted under protection of the protection arch, water leakage holes and hydraulic reclamation holes which are communicated with the protection arch are reserved in a preliminary support, and water leakage pipes and hydraulic reclamation pipes are embedded in the holes respectively; fourthly, forming a graded broken stone buffer layer through hydraulic reclamation, wherein hydraulic reclamation should be sequentially conducted on graded broken stone from bottom to top, and the whole hydraulic reclamation work is completed step by step; fifthly, forming a secondary lining through pouring. By means of the method, construction risks caused by tunnel rock mass cavity section collapse, stone falling and other disasters can be effectively reduced, the treatment speed is increased, the engineering cost is reduced, the treating quality of the tunnel rock mass cavity is ensured, safety during tunnel operation is improved, and the maintenance cost is reduced.

The invention relates to a self-powdered self-cleaning roof rainwater collecting and processing system device. The device comprises a rainwater bucket, an abandoned flow supporting frame, a water pipe, a water-falling pipe, a water reservoir, a water-retaining floating ball, an ultraviolet disinfection lamp tube, a submersible pump, a primary filter screen, a filter roller, a bypass branch rainwater pipe, a filter sewage interception and collection bucket, a reservoir access port, an aeration overflow pipe, a cleaning mouth, a ring floating ball baffle, an abandoned flow container, a roller filter box, a secondary filter screen, a water sink, a hook, a hook sleeve, a convex lug, a handle, and a curved scraper. The water flow first enters into the abandoned flow container through the water-falling pipe to intercept the sewage flow, the relatively clean rainwater hits the filter roller to rotate, the curved scraper scrapes off the dirt attached to the filter roller, the dirt is thrown into the filter sewage interception and collection bucket under the dual action of the filter roller rotation and the water flow impact, and the rainwater is filtered through filter holes of the filterroller and other multi-layer filtration ways to enter into the water reservoir. The self-powered self-cleaning roof rainwater collecting and processing system device can achieve self-powered self-cleaning roof rainwater collecting and processing.

The invention relates to a composite filtration filter flask, which is technically characterized in that (1) a water-resisting sleeve is coaxially arranged at the lower end of a top cap in an outer sleeve and the lower end of a central tube of a reverse osmosis membrane; the upper end of the water-resisting sleeve and the lower end of the top cap are installed in a threaded meshing mode, the lower end of the water-resisting sleeve and the central tube are installed in a sealing mode, and a water inlet channel is formed between the water-resisting sleeve and the reverse osmosis membrane; and (2) a water filtration sleeve and a water purifying sleeve are coaxially arranged in sequence between the water-resisting sleeve and the outer sleeve, and various filtering materials are filled between the water filtration sleeve and the water purifying sleeve; and the lower end of the purifying sleeve is a blind hole casing sleeve, and PP filtration cotton is arranged between the blind hole casing sleeve and the water purified sleeve in the radial direction. The composite filtration filter flask has the advantages of scientific structure, reasonable design, small volume, beautiful appearance, and practical use, integrates the reverse osmosis membrane and various filtering materials into a whole, and is a technical invention with higher technology innovation.

The invention provides a humidifier. The humidifier comprises a machine seat, a water tank, a water storage chamber, an atomizer, a mist-out channel and a water-out control device. The water tank is provided with a water outlet. The water storage chamber is arranged on the machine seat and is provided with the atomizer, and the mist-out channel discharges the mist generated by the atomizer out ofthe humidifier. The water-out control device is used for controlling opening and closing of the water outlet so that the water in the water tank can enter the water storage chamber. The humidifier further comprises an outer wrapping body, wherein the upper portion of the outer wrapping body is open to prevent the water from being leaked out, the water tank is separately arranged in the outer wrapping body, and the lowest point at the upper end of the outer wrapping body is higher than the highest water level of the water leaked out of the water tank. The humidifier has the following advantagesof being stable as a whole, being capable of preventing water leakage, convenient to detach and clean, high in fan efficiency, firm in structure, high in insurance, high in safety coefficient, convenient to operate, clean and tidy and high-end in appearance and optimal in performance.

The invention relates to a novel valve element assembly. The valve element assembly alone has main functions such as the water controlling function, the water guiding function, the support function and the like of a water faucet, thereby enabling the shell (the body) of the faucet to be unnecessary to be in contact with water flow and is used only for configuration decoration. The valve element assembly mainly comprises a pedestal, valve plates, a valve element pressing cap and an extended water guiding hose, and optionally comprises an added component (a filter, an electric heater or the like) at a water outlet end of the valve element assembly or the like. The valve plates (or together with the valve element pressing cap) control the water flow and form an independent sealed water channel, and the functions of switching and changing the water flow can be realized by only using movable valve plates to seal a switching rotating shaft between water inlet valve plates and water outlet valve plates. The water flow is guided to the faucet through the connection of the extended water guiding hose and a water outlet of the valve element assembly (or a water outlet of the added component)and flows out. To add multiple functions and meet other design requirements, the added component (such as, the filter, the electric heater or the like) can be additionally connected to the water outlet end of the valve element assembly. Then a water outlet of the same type (a lug boss type water outlet or a connection hole type water outlet) is designed on the added component, which facilitates the connection with the extended water guiding hose. The valve plates are designed into tri-dimensional valve plates, planar valve plates and double acting valve plates, all of which are applicable toa bathroom faucet and a basin faucet.

The invention discloses an ultraviolet and fluorescent dual-tracing concrete admixture. The ultraviolet and fluorescent dual-tracing concrete admixture is obtained by performing a free radical polymerization reaction on an allyloxy polyvinyl ether monomer or a blocked allyloxy polyvinyl ether monomer, an unsaturated carboxylic acid monomer or an unsaturated carboxylic acid anhydride monomer and an unsaturated double bond-containing water-soluble fluorescent monomer, wherein the unsaturated double bond-containing water-soluble fluorescent monomer is 4-(N'-methyl-1-piperazinyl)-N-hydroxyethyl-1,8-naphthal allyl ammonium chloride or 4-(N'-hydroxyethyl-piperazinyl)-N-hydroxyethyl-1,8-naphthal allyl ammonium chloride. Raw materials for synthesizing a polymer are non-toxic and harmless, so that the characteristic of clean production is met; when the polymer is used as a water-reducing agent, a polymer product can be directly used without being separated; the polymer product has a relatively small addition amount as well as excellent dispersion with relatively high mobility, and the advantage of the relatively small solid addition amount can greatly reduce the cost and increase economic benefits, so that the polymer product is suitable for market promotion.

The invention discloses a pump-free large flow purified water machine comprising a filter of 5MumPP cotton, a grain activated carbon filter, a filter of 1MumPP cotton and a reverse osmosis filter which are series connected in sequence. The reverse osmosis filter is provided with a wastewater outlet and a purified water outlet; the wastewater outlet is connected with a wastewater proportional regulator; the purified outlet is divided into two ways; one way is connected with a pressure storage bucket, the other way is connected with an outlet faucet through the post activated carbon filter. The invention is characterized in that a reverse osmosis membrane125GPD is arranged in the reserve osmosis filter.By adopting the technique proposal, the invention has the advantage of large water yield in the condition without a booster pump. Furthermore, the machine can work normally without electricity which not only saves energy but also increases service scope of the machine; the cancel of electric controlling element simplifies waterway connection of the machine, increases overall security and reliability of the machine and reduces cost thereof.

The invention discloses an SOA architecture-based water supply network leakage loss and consumption reduction intelligent management platform, which comprises a water supply network GIS system, a water supply network SCADA system and a water supply network hydraulic model online dynamic simulation system, wherein the SCADA system and the simulation system are respectively connected with the GIS system; real-time data acquired by the SCADA system and a simulation result calculated by the simulation system are dynamically displayed on a corresponding pipe section and a node of the GIS system, and the operation state of the water supply network can be judged through comparison between the two; the GIS system and the SCADA system are respectively connected with the simulation system, the GIS system pushes geographic information correction data of the water supply network to the simulation system, and the real-time data acquired by the SCADA system are pushed to the simulation system to carry out real-time and online check on the water supply network hydraulic model. The platform is used for timely finding out the operation fault of the water supply network, the leakage loss degree of the water supply network is evaluated, the leakage point is found out, and thus the distribution losses are reduced.

The invention relates to an integral construction method for an air bag of a tunnel sewer ditch, which comprises the following steps: cleaning up a related working plane at the position of the sewer ditch, and carrying out measurement and locating; placing a reinforcement cage, wherein the reinforcement cage comprises stirrups and longitudinal bars, and the arc stirrups which are of an integrated structure are adopted at the positions close to the inside of the sewer ditch; placing the air bag in a sleeve, drawing the sleeve and the air bag onto the arc stirrups in the reinforcement cage, and after mounting the sleeve and the air bag in place, inflating the air bag; when inflating the air bag to a set degree, pulling out the sleeve, and when continuing to inflate the air bag to a preset pressure, carrying out positioning and fixing on the air bag and the reinforcement cage by utilizing a fixing part; setting up a peripheral template of the reinforcement cage, and after closing a die, pouring concrete; after initial setting of the concrete, withdrawing the exhausted air bag out of the sewer ditch, and curing the concrete.

The invention discloses an IGBT heat radiator, which comprises a water-cooled plate, a cooling fan and a plate fin-type heat radiator, wherein the front side of the water-cooled plate is matched with an IGBT module; the plate fin-type heat radiator is fixedly arranged on the back side of the water-cooled plate; the plate surface of the plate fin-type heat radiator is tightly fit with the back side of the water-cooled plate; the second interface of the water-cooled plate is communicated with the first interface of the plate fin-type heat radiator; the cooling fan is arranged at one side of the plate fin-type heat radiator; and a water pump is arranged between the first interface of the water-cooled plate and the second interface of the plate fin-type heat radiator. According to the IGBT heat radiator, through fit arrangement between the water-cooled plate and the plate fin-type heat radiator, heat generated by the IGBT module can be transmitted to the plate fin-type heat radiator through forced water cooling and heat conduction modes, in a condition with small heat radiation requirements, even without water circulation, the heat generated by the IGBT module can be transmitted to the plate fin-type heat radiator through the heat conduction mode, the heat transmission efficiency and the heat radiation efficiency are improved, the operation energy consumption is reduced, the structure is compact, and the occupied space is small.

The invention discloses a shotcrete admixture. The shotcrete admixture is prepared from, by weight, 10-15 parts of a water-retaining agent, 15-20 parts of polyvinyl alcohol, 11-15 parts of a water reducing agent, 1-2 parts of polypropylene fibers, 58-62 parts of a cement accelerator, 3-20 parts of active montmorillonite, 10-25 parts of an accelerating agent, 1-12 parts of an acrylic copolymer, 1-2parts of sodium nitrite, 50-80 parts of expanded ultrafine silicon powder and 1-50 parts of calcium hydroxide. Shotcreting on normal seepage rock surfaces can be realized normally to greatly reduce rock surface seepage, the water reducing effect reaches 30% or above, 28-day strength can be improved to 50MPa, preparation of C40 anticorrosion shotcrete can be realized, and the problem of shotcreting in rock burst and water-abundant areas can be completely solved.

The invention provides a steelmaking hydrogen control method. Through much test and data analysis, the hydrogen content of molten steel produced in each procedure is detected and analyzed, and the various factors which may increase hydrogen in the steelmaking process are summarized. By optimizing the quality and proportion of furnace charge of a converter, improving the endpoint carbon content of the converter, reducing use of water-containing materials, strictly controlling water leakage of a flue and an oxygen lance, carrying out alloy and protective slag baking, prolonging the slow cooling time of casting blanks and the like, the average hydrogen content in the steel is lowered by 2.04 ppm and becomes 4-6 ppm. The quality of the casting blanks is remarkably improved, the crack and flaw detection defects of the steel grade not subjected to vacuum treatment are greatly reduced, and the flow defection percent of pass of steel plates is improved to 99.3% from original 98.5%.