8628 results about "Water leakage" patented technology

The present invention relates to an electrical safety diagnosis system and apparatus, which are configured to enable sensed data on user surroundings in a U-city environment, such as electrical safety data for switchboards and distribution boards, and water leakages, faulty outlet connections, etc., to be managed remotely by a server at a U-city integrated information center. In particular, the present invention relates to an electrical safety diagnosis system and apparatus which use a U-city integrated information network to preemptively perform checking and analyses for potential electrically-induced disasters that can occur in public facilities, stores, buildings, and homes within a U-city, by means of a U-city integrated information center, and prevent electrical fires or shocks at the electrical equipment of switchboards or distribution boards, and dangerous conditions (such as water leakages, abnormal temperatures, gas, and faulty outlet connections) in facilities used by users. The remote electrical safety diagnosis system of the present invention comprises: a digital switchboard including the functions of checking electrical equipment in a switchboard room using a contactless arc sensor and a partial discharge sensor on a power line, to diagnose the safety of the electrical equipment, diagnosing an arc or partial discharge in a detected waveform and storing the diagnosed data, and transmitting the diagnosed data to a higher level server; and a digital distribution board including a main circuit breaker and a partial circuit breaker, for checking an AC voltage or current input through the power line, storing the checked data, and transmitting the diagnosed data to the higher level server.

A sill pan system is provided for installation along the bottom plate of a framed-in window or door opening to prevent water leakage. The system includes end pieces that are fitted in the bottom corners of the opening and a central web that spans, partially overlaps, and is adhered to the end pieces. The central web is formed of a transparent or translucent plastic to allow visual confirmation that a good seal is formed between the overlapping portions of the web and end pieces. The web is formed with inside flanges and flashing strips that are connected with flexible hinges so that web material can be rolled into a roll. The components may be formed with an abrasion resistant upper surface cladding and the central web may be formed with longitudinally extending drain channels for directing water to the ends of the pan for drainage.

An object of the invention is to provide a solar cell module in which sufficient drainage and ventilation are ensured on the rear side, an output cable can be prevented from being caught during installation, and long term reliability is ensured by preventing bleed of the output cable, and another object of the invention is to provide a solar cell module integrated with building materials in which water leakage into the house and failure due to staying moisture can be avoided by imparting a waterproof function of a verge substrate water drip. A bottomed drain gutter opening to the abutting face of a heat insulating supporting material is provided to communicate with the side of the heat insulating supporting material, and a cable holding groove opening to the abutting face of a leg vertically provided on the heat insulating supporting material and deeper than the diameter of the laid cable is made to communicate with the side of the leg in order to hold the cable without projecting the cable from the opening. Furthermore, a plurality of geta members are arranged on the bottom of a supporting base and the thickness of each geta member is so set that the supporting base does not collapse the verge substrate water drip when the solar cell modules are laid on the verge substrate water drip.

A water leakage detecting apparatus is capable of detecting water leakage of a water pipe precisely and at low cost. The water leakage monitoring apparatus includes vibration/electric converter for converting an acoustic vibration transmitted to a water pipe into an electrical signal. A signal discriminator processes an output signal of the vibration/electric converter to detect a signal of a predetermined band being held below a predetermined level continuously beyond a continuing condition to generate a sound interruption detection signal. A counter counts the number of occurrences of the sound interruption detection signal.

A water leakage monitoring system including a water leakage position estimator which includes a periodic data acquiring unit for fetching predetermined-period flow rate pressure data stored in a monitoring device, and for fetching a signal related to a flow rate change and pressure changes expecting a water leakage reaction time calculating unit for calculating a pressure reaction time lag between two pressure changes, a pressure propagation velocity estimating unit for estimating a pressure propagation velocity using the pressure reaction time lag and a distance between two pressure gauges located in a water distribution block stored in a pipeline network map data, and a flow rate change position estimating unit for receiving a signal related to the flow rate change, and estimating a flow rate change position using pressure propagation velocity and a flow meter and pressure gauge locating positions of the pipeline network map data.

The invention provides a grouting device and grouting technique for a tunnel lining vault with a mould. The grouting device comprises a lining concrete pouring template, a grouting pipe, a fixing device, a throttling device, a flow-splitting device, a feeding device and a control device, wherein a mounting hole is formed in the lining concrete pouring template; the grouting pipe penetrates through the mounting hole, and the fixing device is used for fixedly connecting the grouting pipe; one end of the throttling device is communicated with the grouting pipe while the other end is communicated with an output port of the flow-splitting device; the feeding device is communicated with an input port of the flow-splitting device and is used for conveying grouting slurry to the grouting pipe; and the control device is connected with the feeding device and is used for controlling the starting/stopping of the feeding device. According to the invention, the water leakage problem of the secondary lining concrete caused by the waterproof plate being easily broken in the traditional later punching grouting process is solved, and the filled grouting liquid and concrete are formed into a stressed whole body, so that the empty lining and the defect of two-layer skin of the traditional grouting technique are overcome, and the risks in cracking and falling of the lining concrete are reduced.

The invention discloses a water leakage detector, a water leakage detecting system and a water leakage detecting method. The water leakage detector comprises an acquisition device and a processing device, wherein the acquisition device is used for acquiring sound signals for preprocessing; and the processing device is used for performing Fourier transformation of the sound signals, performing frequency analysis and calculation, extracting features of the sound signals, performing power spectrum estimation for the sound signals to analyze frequency components of the signals, and judging whether leakage exists or not according to peak values and bandwidths of a power spectrum. The water leakage detector and the water leakage detecting system are simple and accurate in detection, and a water leakage fault can be recognized according to a pattern recognition method and by means of Fourier functional transformation and power spectrum analysis, so that maintainers can remove the fault as soon as possible and replace water pipes, waste is avoided, water supply quality is guaranteed, and economic loss is reduced. Besides, the problem of waste due to difficulty in water supply leakage detection is avoided, and the detecting method is accurate and convenient in control.

The invention relates to a method for enhancing bituminous mixtures by adopting chopped basalt fibers, belonging to the technical field of novel compound materials. According to the invention, continuous basalt protofilaments or twistless rovings the surfaces of which are expanded into fibers in certain length, and then the fibers are used for enhancing the bituminous mixtures in a certain doping proportion and can be respectively used for maintaining the bituminous mixtures used for new construction and reconstruction and extension of highways and SMA and OGFC bituminous mixtures as well as fiber seals. In addition, the fibers can also be used for the enhancement of high-speed railway packing layer CA mortar and relevant hydraulic architectures. The chopped basalt fiber plays roles of enhancing, toughening and elasticizing the cracking prevention, crack resistance and reinforcement and 'bridging' in the enhanced bituminous mixtures, can obviously increase the anti-rutting ability of highways of the enhanced bituminous mixtures and reduces the whole life costs of the enhanced bituminous mixtures; if the fibers are used for high-speed railway plate-type ballastless tracks and CA mortar, the bending strength and the deformation resistance can be increased, i.e. the fibers play a role of crack prevention and crack resistance; in addition, the fibers have better anti-water leakage action if being used for Hydraulic and Hydro-Power Engineering.

The invention discloses a polyurethane chemical grouting water plugging-reinforcing material which comprises a component A and a component B. The invention is characterized in that the component A is composed of polyether glycol and auxiliary materials, and the component B is composed of isocyanate and/or prepolymer thereof and auxiliary materials; and the auxiliary materials comprise catalyst, foam stabilizer and other assistants. The polyurethane chemical grouting water plugging-reinforcing material disclosed by the invention does not contain benzene, xylene, acetone and other solvents and does not influence the water quality after curing, and the solid content is 100%, thereby being environment-friendly and pollution-free; and when in use, the reaction speed of the double components is very high, the reaction starts after 20 seconds and basically finishes after 90 seconds, the reaction time is adjustable according to the engineering demands, and thus, the polyurethane chemical grouting water plugging-reinforcing material can effectively and quickly solve the problems of water leakage and water inflow of mines.

A foldable packaging which may include a liquid-resistant paperboard form that is foldable to provide an attractive stackable container that resists water leakage, can be assembled without fastening hardware and has concealed gussets. The packaging can be folded into overlapping flaps and wings which are folded and interlocked to define a generally trapezoidal packaging which can receive a variety of different pot sizes and types. The die cut pattern forming the packaging can be of a universal shape but formed in a variety of different sizes to accommodate different sized potted plants.

The present invention relates to delivery conduits used in systems that provide positive pressure ventilation therapy. In particular, the present invention relates to a sleeve that allows flexible conduits to be joined and sealed to a thermoplastic connector, allowing for gases to be supplied to the conduit. The sleeve is used in the over moulding of an end connector onto the conduit. The sleeve and method of attaching a connector to a conduit of the present invention has the advantage that it prevents the connector from loosening or breaking when the conduit is bent, pulled or stressed, which can occur in some cases where the connector is attached to the conduit using a bond, such as glue. Furthermore, the occurrences of flashing of plastic across the conduit walls will be prevented during moulding, ensuring that no air or water leakages occur within the conduit walls.

The invention requests to protect non-cured asphalt mastic comprising the following components in percentage by weight: 35-55 asphalt, 15-30 naphthenic oil, 3-10 polymer modifying agent, 55-20 gelatin powder, 3-10 diisononyl phthalate and 10-20 tackifying resin. The non-cured asphalt mastic can be independently used or can be used with the matched coil to form a waterproof system and can effectively solve the problem of water leakage caused by the crack of a waterproof layer due to the deformation of a base layer.

The invention relates to a paste self-flow stuff technique of coal mine and relative paste, which uses the coal gangue as main stuff. The invention is characterized in that the stuff technique comprises that mixing cement and powder coal into water to form pulp; adding coal gangue to form coal gangue suspension paste; using tube to self-flow transmit the paste into under-well stuff area to stuff the mining field. The invention uses coal gangue as main stuff material and uses self-flow stuff technique, with low cost and the application in the underground coal layer, to reduce the pollution of coal gangue. The inventive paste has high water contant and low water leakage, therefore, the stuff has high strength.

The invention relates to a reclamation method for a sunk paddy field caused by mining in mountainous regions and belongs to the technical field of improvement and utilization of environment, ecology and damaged fields. The method includes: performing topsoil stripping to fissured positions where fissures are created by mining sinking and lead to water leakage of the paddy field; covering water holding materials on fissured areas after topsoil stripping; compacting the covered water holding materials, pouring slurry and standing; performing topsoil backfilling and grinding to the fissured areas after slurry pouring and standing, and flattening to enable the fissured areas to be a whole with pieces of the paddy field around the fissured areas; and irrigating, nourishing and improving the paddy field after backfilling and grinding. By the method, the cultivation land where the fissures are created by mining sinking and lead to water leakage of the paddy field can restore the paddy field utilization mode and reach production level of a normal paddy field as soon as possible, a stable self-maintaining farmland ecological system can be formed, a paddy field protecting system can be formed, soil microbial content can be increased, physicochemical property of soil can be improved, and benign farmland ecological system circulation can be formed.

Disclosed is an electronic device capable of controlling a power supply interrupt according to the state of water leakage. A portable telephone (1) is equipped with a water leakage detection unit (60) that detects a physical quantity which changes according to the state of water leakage and a CPU (49) that interrupts a power supply in response to the detection result from the water leakage detection unit (60). When the electrostatic capacity detected by the water leakage detection unit (60) is greater than or equal to a threshold value A and less than a threshold value B, the CPU (49) continues to interrupt the power supply until a time T1 elapses, and when the electrostatic capacity detected by the water leakage detection unit (60) is equal to or greater than the threshold value B, said CPU continues to interrupt the power supply until a time T2 which is longer than the time T1 elapses.

The invention provides a water supply pipeline leakage detecting and positioning method which is characterized in that a signal collected by a sensor is subjected to enhancement through spectral subtraction, the frequency spectrum variance of the signal after enhancement is calculated, a double-threshold method is adopted for judgment, that is, if the frequency spectrum variance is within the threshold range, which indicates that leakage occurs, the leakage point is positioned, a BP neural network is utilized to form a filter, a water leakage signal is separated from noise and subjected to generalized correlation analysis, time delay estimation is carried out according to the weight function with a good signal-to-noise ratio selectivity, three time delays of the sensor are acquired, and a water leakage positioning model is utilized for calculation to acquire water leakage point position information. According to the water supply pipeline leakage detecting and positioning method, the spectral subtraction method is adopted for signal enhancement, the double-threshold method is utilized for leakage judgment, if the frequency spectrum variance is within the threshold range, which indicates that leakage occurs, and therefore the accuracy is higher; besides, the non-leakage estimation method is adopted for estimation of the noise spectrum, the signal-to-noise ratio is increased more obviously, meanwhile the BP neural network is adopted for filtering, the generalized correlation time delay estimation accuracy is improved, and the water leakage point positioning accuracy is effectively improved.

The invention relates to the field of building materials, in particular to a lightweight insulating brick. The lightweight insulating brick is prepared by mixing the following raw materials: 8 to 15 percent of gelled material, 30 to 50 percent of aggregate, 25 to 55 percent of lightweight material, 1 to 2 percent of aids and 3 to 4 percent of waterproof powder. Because lightweight materials of industrial and agricultural wastes are added into the lightweight insulating brick, the lightweight insulating brick changes waste into valuable, protects the environment, is energy-saving, insulates sound and heat, has strong insulating property and is warm in winter and cool in summer; and compared with an air-entrained cement building block, the lightweight insulating brick has the advantages of strong water resistance, water leakage resistance, high strength, strong safety, good compactness, slurry drop resistance, low investment and easy popularization.

A methods and system detecting water system leaks provides detecting of water leakage having very low flows. Very low flow leaks are detected by detecting drops in a building water system pressure when the water supply source is disabled. The water system is disabled by an electrically controllable valve, which may be turned off in response to a motion detector that detects that no human activity is present in the building. The rate of pressure drop is used to determine the magnitude of the leak, and multiple thresholds can be used to detect slow leaks versus more serious leaks. A humidity detector may also be incorporated in the system to detect abnormal humidity conditions and shut the electrically controllable valve in response. Appliance current consumption can be detected and used to override motion-sensor based shut-off of the valve, so that water-consuming appliances can continue to operate.

The invention relates to a construction method for laying water pipes, mainly solving the problems of high cost, transport expense and maintenance expense of a precast rigid pipe adopted for a traditional heavy-calibre water pipe. The construction method comprises the following steps of: excavating a foundation, laying a cushion layer at the bottom of a pipe ditch, laying pipelines, injecting water to make a core, filling concrete and backfilling the pipe ditch. In order to be convenient for maintenance, an operation well is arranged at the part of each three-way valve. Compared with an iron pipe and a steel pipe, a plastic flexible pipe has the advantages of greatly reduced production cost, good corrosion resistance, no water leakage, long service life, on-site construction, simple operation and improved construction efficiency. Compared with the traditional underground pipeline, the invention has simple operation for the maintenance and reduces the maintenance expense.

The invention relates to a non-cured rubber asphalt waterproofing coating with flame retardance property. The non-cured rubber asphalt waterproofing coating is prepared from the following raw materials in parts by weight: 35-55 parts of petroleum asphalt, 5-25 parts of softener, 2-8% of flame retardant, 0.1-3 parts of antiaging agent, 5-20 parts of filling agent, and 0.1-2 parts of modifier. The non-cured rubber asphalt waterproofing coating disclosed by the invention has flame retardance property, the flame-retardant problem of a hot-melt waterproofing material can be effectively solved, the non-cured rubber asphalt waterproofing coating is convenient to construct, reliable to adhere, and self-healing, the non-cured rubber asphalt waterproofing coating and a self-adhesion modified asphalt waterproofing sheet material are composed to form a waterproofing system, and the water leakage and channeling problems caused by cracking of a waterproof layer due to deformation of a base layer can be effectively solved.

The invention belongs to the field of marine technical equipment, and particularly relates to an automatic floating device of an underwater robot and a method for controlling the automatic floating device. The method includes that faults such as water leakage can possibly occur due to complexity of work environments of the underwater robot, the underwater robot urgently needs to float out of water surfaces, water leakage signals can be detected by a water leakage sensor inside the underwater robot at the moment, and can be transmitted to a central controller, signals can be transmitted to an igniter after the signals are processed and judged by the central controller, the igniter can be activated and carries out ignition to initiate chemical reaction, a large quantity of gas can be generated instantly, is filtered by a filter and then flows into a gas bag, a gas bag cover can be flicked after the gas bag is quickly expanded, the gas bag is immediately unfolded right above the underwater robot, the volume and buoyancy of the underwater robot are increased after the gas bag is unfolded, and the underwater robot can ultimately float out of the water surfaces under the effect of net buoyancy, can be timely found by staffs under the assisting effect of a GPS (global positioning system) positioner and can be recovered. The automatic floating device and the method have the advantages that the automatic floating device is simple in structure and can work reliably, and the response capacity of the underwater robot under special conditions can be greatly improved.

The invention discloses a construction method for a full cover-excavation reverse method of underground engineering. The construction method comprises the following construction steps of A, underground diaphragm wall construction; B, top plate construction for an underground main structure; C, road face recovery construction or construction of a structure above ground; D, first layer underground excavating construction; E, repetition of the step D till underground excavating construction of the lowest layer is completed. The construction method is characterized in that drainage construction is conducted on underground water by adopting a collected water surface draining method in the process of the step B, and it is ensured that the water level is 50cm or so below a foundation pit. Construction of the structure above the ground in the step C can be conducted at the same time with the steps D-E. The steps D-E are constructed under the covering of the top plate completed in the step B. Underground engineering construction is conducted by adopting the construction method, not only can a construction period be shortened, but also the problems of differential settlement, water seepage and water leakage can be effectively solved.

The invention discloses an overall regulation system and method of a machine room. The overall regulation system comprises a monitoring module, an analysis module and a statistics management module, wherein the monitoring module is used for monitoring an environment and power module in the machine room to obtain monitoring parameters, the monitoring parameters included the temperature monitoring parameter, the humidity monitoring parameter, the channel lightning-protection monitoring parameter, the firefighting monitoring parameter, the door control monitoring parameter, the water leakage monitoring parameter, the static electricity monitoring parameter, the power supply monitoring parameter, the power distribution monitoring parameter, the power source monitoring parameter and/or the air conditioner unit monitoring parameter, the analysis module is used for generating regulation parameters according to the monitoring parameters, and generating regulation instructions according to the regulation parameters, the statistics management module is used for issuing the regulation instructions to the monitoring module, and the monitoring module is further used for executing the regulation instructions. The overall regulation system and method of the machine room have the advantages that overall regulation is carried out on the machine room according to the monitoring parameters of the interior of the machine room, and therefore the overall condition of the machine room is maintained, and the powerful and reliable guarantee is provided for safe and stable operation of a power system.