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157 results about "Water escape" patented technology

Coal bed high-pressure water injection intelligent monitoring system and intelligent monitoring method thereof

The invention discloses a coal bed high-pressure water injection intelligent monitoring system and an intelligent monitoring method thereof. The high-pressure water injection intelligent monitoring system comprises a monitoring sensing system, a water pressure supply system and a central control mechanism. The high-pressure water injection intelligent monitoring method is based on the high-pressure water injection intelligent monitoring system and aims at monitoring the high-pressure water injection system in real time; the monitoring sensing system sends the collected data information to the central control mechanism, and judges if states of 'branch water escape', 'ultra-low flow rate, ultra-low water pressure', and 'early warning for water shortage' appear, and detect the water injection coal bed crustal stress in real time; the central control mechanism processes and analyzes the information and then transforms it to the control signal, and controls the monitoring sensing system and the water pressure supply system. Therefore, the influence of 'water escape', 'ultra-low flow rate, ultra-low water pressure' and other phenomenon on the coal bed high-pressure water injection is effectively reduced, and the water injection effect is effectively improved.
Owner:SHANDONG UNIV OF SCI & TECH

Novel reverse flow preventing device

The invention discloses a novel backflow preventer. The preventer comprises at least two check valves which are communicated with each other and in series connection. A water escape valve is connected to and communicated with a valve body of the water exit section of the first check valve; the first check valve comprises the valve body; a valve seat is arranged on the inner wall of the valve body; a valve clack is arranged in the valve body and sealed with the valve seat; an elastic device is arranged on the valve clack; a movement constraint guide rail of the elastic device is arranged on the inner wall of the valve body; and the other end of the elastic device comes into contact with the movement constraint guide rail. The backflow preventer with the above structure can accurately sense the operating state of a system pipeline, and provide feedback when a backflow trend happens to a medium or a pipe explosion accident occurs before a valve, so as to preventing the medium from the backflow. By adopting the structure, the reached performance index exceeds the provision of the national standard CJ/T160-2002. The preventer can effectively prevent drinking water and other clean water from being polluted, and is suitable for occasions with strict requirements for water quality of drinking water systems and pipe systems.
Owner:WUHAN DAYU VALVE

Phase-change cooling system and working method thereof

ActiveCN111326822AGuaranteed uniform temperature distributionImprove temperature uniformitySecondary cellsTemperature controlEngineering
The invention discloses a phase-change cooling system and a working method thereof. The phase-change cooling system comprises a first split body, a second split body, a two-position three-way valve, acirculating pump and a water escape valve, the interior of the first split body is divided into an object carrying cavity and an evaporation cavity through a first partition, the first partition is of a sawtooth-shaped structure, a heat bridge is arranged between the tooth end of the first partition and the interior of the first split body, a capillary liquid guide core is arranged on the inner wall of the evaporation cavity, and a heating assembly is arranged in the object carrying cavity; a second partition is arranged at the top of the evaporation cavity, a condensation pipe is arranged inthe evaporation cavity, one end of the condensation pipe penetrates through the side wall of the evaporation cavity to be communicated with the condensation water inlet, and the other end of the condensation pipe penetrates through the side wall of the evaporation cavity to be communicated with the condensation water outlet; and a cooling heat exchanger, a spray pipe, a filling cavity and a wateraccumulation cavity are arranged in the second division from top to bottom. According to the system and the working method thereof, the working temperature of a cooled object can be effectively controlled to be 40 DEG C or below, the structure is simple, and energy consumption is low.
Owner:XI AN JIAOTONG UNIV

Dust collecting device used for excavator

The invention discloses a dust collecting device used for an excavator. The dust collecting device comprises a flat car, wherein a water tank is arranged on the upper surface of a car plate of the flat car; a water inlet is formed in the top of the water tank; a water outlet is formed in the side wall of the water tank; a water pump is arranged on the upper surface of the car plate of the flat car; an inlet of the water pump is connected with the water outlet through a pipeline; an outlet of the water pump is connected with an atomizing spray head through a pipeline; a water escape valve is further arranged on the pipeline between the atomizing spray head and the water pump; a power generator is further arranged on the upper surface of the car plate of the flat car; the power generator, the atomizing spray head and the water pump are sequentially connected through a guide wire; the power generator is further connected with a PLC through a guide wire; and the PLC is connected with a display screen through a guide wire. According to the dust collecting device used for the excavator disclosed by the invention, dust concentration in air can be effectively detected through a dust detector, a water spraying device can be automatically started under the control of the PLC, an ultrasonic wave liquid level meter is further arranged in the water tank, and the PLC can shut off or turn on the water pump according to a liquid level condition, so that an operator can be reminded to timely supplement water into the water tank.
Owner:XI'AN POLYTECHNIC UNIVERSITY

Pressure stabilizing water supply system with one-way solenoid valve

The invention provides a stabilized water supply system with a one-way solenoid valve, including a water pump, one end of the water pump is connected to the water source, and the other end is connected to the pressure relief valve and the inlet of the stabilized water tank through a three-way pipeline. The water outlet, the water pressure sensor is installed on the pipeline of the water inlet of the stabilized water tank, the water outlet is connected to the high-speed hydraulic dynamometer through the water outlet valve pipeline of the stabilized water tank, and the top end of the stabilized water tank is passed through the one-way solenoid valve pipeline It is connected to a high-pressure air source, the other end of the normal-pressure air communication valve pipeline is connected to normal-pressure air, and the bottom pipeline is connected to the drain valve of the pressure-stabilizing water tank, and a water level sensor is installed on the pressure-stabilizing water tank. The stabilized water supply system with a one-way solenoid valve of the present invention has a simple structure, and the one-way solenoid valve provided can effectively prevent water from flowing back into the gas supply pipeline when the water level in the stabilized water tank rises abnormally, so as to protect the equipment. Extend the life of the equipment.
Owner:CHINA NORTH ENGINE INST TIANJIN

Water escaping and refuging safety cabin

The invention discloses a water escaping and refuging safety cabin, which is a device capable of being used for simultaneous escaping of multiple people from navigation ships and deep-sea submarines in danger, people engaged in offshore drilling operation and deep-sea diving operation when marine perils occur and people suffering from tsunami caused by earthquake. The water escaping and refuging safety cabin is characterized in that a cabin body is made of steel plates and is 2,200mm in diameter phi and 1,800mm in height; the cabin body is internally provided with a structural column with the diameter phi being 400mm; the structural column is internally provided with a supporting column with the diameter phi being 300mm and the length being 1,700mm; a water pressure cabin with the height being 600mm and the planar width being 500mm is arranged at the lower end of the inner side of the cabin body along the periphery of the cabin wall; the upper end of the horizontal radius of the cabin body is symmetrically provided with a cabin door and portholes; the top end of the outer side of the cabin body is provided with two air channel pipes. The water escaping and refuging safety cabin disclosed by the invention has the advantages that when marine perils occur, the supporting column extends out of the lower end of the cabin body by the air pressure to play a balancing role for resisting wind wave, if the cabin body is buried by drift sand and mudstone in tsunami caused by earthquake, the downward reacting force for continuous supporting of the supporting column can lift the cabin body to separate from the burying body; when in deep-sea operation or when the submarines are in danger, sea water can be filled in the supporting column, the structural column and water pressure cabins for ballasting, and the weight and the pressure are gradually reduced by artificial control so as to prevent the cabin body from rising and floating quickly.
Owner:王高才

Drying-free preparing technology adopting particle boric magnesium fertilizer acid method

The invention provides a drying-free preparing technology adopting a particle boric magnesium fertilizer acid method. The drying-free preparing technology comprises the following steps that 1, wet boric sludge is thrown into a double-shaft mixing machine, 92.5% concentrated sulfuric acid is added to enable boron and magnesium in the boric sludge to be acidified and decomposed, heat is emitted, carbon dioxide and water vapor escape, the temperature for materials is 65 DEGC-80 DEG C at the moment, a pH value is 7-8, and a part of magnesium oxide forms magnesium sulfate monohydrate; 2, after being stirred, magnesium sulfate monohydrate is cooled and stands, and after the water escapes completely, the boric sludge begins hardening and is naturally dried into blocks, namely acidified boric sludge blocks; 3, the acidified boric sludge blocks are smashed to obtain dry powder; 4, the smashed dry powder is pelletized in an acid spraying mode in a disc palletizing machine with 40-68% dilute sulfuric acid serving as an adhesion agent, the boric sludge is further acidified and prepared into balls, and the balls are cooled and screened to obtain finished products. By the adoption of the drying-free technology, consumption of fire coal is omitted, and production cost is effectively reduced; meanwhile, the boric sludge serves as a basic material, drying is avoided in the acid method, and harm to the environment from the boric sludge can be reduced effectively.
Owner:金玛(宽甸)肥业有限公司

Water-absorbing anti-spattering drainage channel

A water-absorbing anti-spattering drainage channel is characterized by comprising a channel body, a water separating net, water-absorbing sponge, a micro-submersible pump, a water drain valve, a quick connector and a water drainage pipe, wherein the water separating net is fixed in the channel body; the water-absorbing sponge is arranged on the water separating net; the micro-submersible pump is mounted at an end of the channel body; and the water drain valve, the quick connector and the water drainage pipe are connected to the exterior of the channel body. The water-absorbing anti-spattering drainage channel has the positive effects that cooling water jet during a welding operation process of a rail passenger car or water falling from a high position is absorbed by the water-absorbing sponge fast to avoid spattering. Due to the adoption of the water separating net, a water storage space is reserved in the height direction of the drainage channel, the water-absorbing sponge is supported, and water absorbed by the water-absorbing sponge drops to the channel body. When the water escape valve is opened, the quick connector is communicated with the water drainage pipe, and the micro-submersible pump is started, collected water is drained to a sewage conduit, so as to realize the functions of anti-spattering collection and discharging of cooling water.
Owner:CRRC CHANGCHUN RAILWAY VEHICLES CO LTD

Split-type large water hammer pump and starting method thereof

The invention relates to a split-type large water hammer pump and a starting method thereof. The split-type large water hammer pump comprises a power pipe, a bent pipe, a vertical water inlet pipe, areducing pipe, an air tank pipe, a water conveying valve, a connecting pipe and a water escape valve. The water conveying valve is equipped with a spring limiting facility. The connecting pipe is provided with detachable telescopic joints. An air tank is provided with an air supplementing facility. A water facing surface of a water escape valve clack is equipped with a flow guide body fixedly connected with the reducing pipe. The water escape valve is provided with a lever or a hydraulic opening mechanism. By arranging the flow guide body on the water escape valve, the mass of the water escapevalve clack is reduced. Therefore, an impact resistance problem of the water escape valve is resolved. The water conveying valve is provided with a limiting mode so that service lifetime of a water-conveying valve spring is prolonged. By arranging the starting mechanism, the problem that a conventional mode fails to start a large water hammer pump is resolved. The telescopic joints help resolve problems related to installation, transportation and maintenance of the large water hammer pump. Due to the air supplementing facility, the air tank is not excessively large. The water hammer pump canbe used in a large-scale hydraulic project, which saves a great deal of petrochemical energy.
Owner:北京宇豪胜水利科技咨询有限公司

Vacuum heat pump drying device

The invention relates to a vacuum heat pump drying device, comprising a drying box body, wherein the left end and the right end of the drying box body are respectively provided with a left end cover and a right end cover as well as a left sealing strip and a right sealing strip, the box body is internally provided with a condenser coil pipe and an evaporator coil pipe lifting frame, the evaporator coil pipe lifting frame is provided with an evaporator coil pipe and a water receiving tray; the box body is externally provided with a compressor and a throttle, the inlet and the outlet of the compressor are respectively communicated with the outlet of the evaporator coil pipe and the inlet of the condenser coil pipe as well as the inlet and the outlet of the throttle are respectively communicated with the outlet of the condenser coil pipe and the inlet of the evaporator coil pipe; and a condenser coil pipe bracket is arranged on the inner side wall of the box body. The vacuum heat pump drying device is characterized in that a water ejector is arranged, the throat part of the water ejector is communicated with the box body by virtue of a check valve and a pipeline, the inlet of the water ejector is connected with the outlet of a high pressure water pump by virtue of a high pressure water pipeline, the inlet of the high pressure water pump is communicated with the lower part of a water tank by virtue of a water pipe, the lower part of the water tank is provided with a water escape valve, and the exterior below the drying box body is provided with a blowoff valve and an air intake valve. The vacuum heat pump drying device provided by the invention can be widely applied to industries requiring low temperature drying such as food industry, pharmaceutical industry, chemical industry and building material industry.
Owner:胡日生

Dual-descaling method for hot rolling strip steel slab

InactiveCN102371284AEliminates scar cracking problemsSolve the problem of blocking and descaling waterWork treatment devicesMetal rolling arrangementsStrip steelHigh pressure water
The invention relates to a dual-descaling method for a hot rolling strip steel slab, which comprises the following steps of: aslant and outwards spraying descaling water by a nozzle of a descaling water spraying pipe installed on an inlet and outlet of a rough mill; and removing mill scale on the surface of the strip steel slab, and cooling the strip steel slab. The dual-descaling method is characterized in that a plurality of rows of drooping water blockage chains installed on the inlet and outlet of the rough mill are used for blocking spraying descaling water when the descaling water is sprayed; a water pipe arranged on the inlet and outlet of the rough mill is used for carrying out spraying high-pressure water aslant and inwards in a back flushing way when pressure intensity is less than 19MPa; back flushing water is sprayed to the descaling water spraying position on the surface of the strip steel slab; the back flushing water is used for blocking descaling water escaped along the surface of the strip steel slab; the flow of the back flushing water is 2/9-4/9 of that of the descaling water; the descaling water spraying angle relative to the horizontal plane is 75-85 degrees; and the flushing water spraying angle relative to the horizontal surface is 42-48 degrees. The dual-descaling method for the hot rolling strip steel slab has the capability of reducing the defect rate.
Owner:SHANXI TAIGANG STAINLESS STEEL CO LTD

Hot-melt pressure-sensitive adhesive and preparation method thereof

The invention relates to a hot-melt pressure-sensitive adhesive and a preparation method thereof. The hot-melt pressure-sensitive adhesive comprises, by mass, 5-15 parts of a plasticizer, 20-40 partsof polyisobutylene, 20-50 parts of a thermoplastic elastomer, 40-70 parts of tackifying resin, 0.1-1 part of an antioxidant, 2-5 parts of an additive and 0.5-2 parts of an anti-UV assistant. The additive can increase the Van der Waals force among hot-melt adhesive molecules to effectively prevent pop-open of overlap edges, caused by the sliding of an adhesive layer; and the polarity of the polyisobutylene is similar to that a waterproof coiled material, so the wettability to the waterproof coiled material of the hot-melt pressure-sensitive adhesive is enhanced, thereby the skin-like contact between the hot-melt adhesive and the waterproof coiled material is generated, the intermolecular effect between the hot-melt adhesive and the waterproof coiled material is increased, the infiltration of water molecules is blocked, water escaping from the overlap edges of the coiled material is prevented, and the peeling strength of the overlap edges is increased. The anti-UV assistant can absorb ultraviolet lights in sunshine, and releases the ultraviolet lights in a heat form in order to achieve a good anti-UV aging effect.
Owner:HUIZHOU NENGHUI CHEM CO LTD

User heating metering control system

InactiveCN105953300AReduce wasteSolve the problem of unreasonable heating chargesLighting and heating apparatusCentral heating componentsControl systemTimer
The invention provides a heat supply metering control system for users, which includes a heat supply central control system, including a server and a PC; a sensor group installed on the user side, a solenoid valve installed on the water supply pipe on the user side, and a valve connected to the solenoid valve. Control device; the control device includes a central data processing unit, a communication module, a power supply, a GSM module, and a timer, and the control device receives the data sent by the sensor group and transmits it to the heating central control system; it also includes The infrared sensor and temperature sensor are used to detect whether there are people in the room and the indoor temperature. The invention calculates the heat consumption according to the collected flow signal and temperature signal, and receives the command signal sent by the control device to control the solenoid valve, which can realize the metering and charging according to the actual heat and water consumption of each household, and completely solve the unreasonable charging of heating supply to prevent water stealing and running away, the invention has the advantages of simple operation, convenient installation, accurate measurement and remarkable energy-saving effect.
Owner:WINSUN ENERGY SAVING TECH TIANJIN
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