63results about How to "Easy to check for leaks" patented technology

The invention discloses a multi-parameter sensor for measuring differential pressure/pressure/temperature, characterized in that there is a differential capacitance bellows differential pressure sensor packed combination in a casing; pressure resistance type static pressure sensor, detecting sensor and medium temperature digital output high-accuracy integrated temperature sensing chip are used to detect differential pressure, pressure, and temperature parameters. And it has characters of small and exquisite, lightweight, and easy to manufacture by routine process. On this basis, various manufactured transducers of different functions can be widely applied to chemical departments, petroleum departments, metallurgy departments, power stations, etc, for detecting pressure, level, differential pressure, flow and other basic thermal parameters of liquid, gas and steam, and can posses multiple compensating properties and very good development space.

The invention discloses an anode of a supersonic plasma torch, and the supersonic plasma torch. Mainly, the conventional laval-type anode is divided into two parts, wherein one part near a cathode body is called as a basic anode; the other part far away from the cathode body is called an auxiliary anode; and the two parts are isolated by a high-temperature-resistant insulation ceramic chip. The cathode body is fixed on a conductive torch core and is sequentially connected with the basic anode and the auxiliary anode in an axial direction. When the anode works, an arc root is transferred from the basic anode to the auxiliary anode, so that a nozzle of the laval-type basic anode with a complicated structure is protected while an electric arc is lengthened. Therefore, the voltage is increased under the condition that the working current is unchanged. As a result, the energy utilization rate is improved.

The invention discloses a buoyant box type water floating gantry crane pipeline sinking construction method. The method comprises steps as follows: step 1, long steel pipes are welded ashore and lifted onto a controllable buoyant box on the water surface; step 2, all small sections of steel pipes floated by the controllable buoyant box on the water surface are welded into a large section of steelpipe; step 3, a gantry crane lifts steel pipes with inclined pipe sections to be welded with the large section of steel pipe; step 4, a hydrostatic test of the steel pipes is conducted after the wholesection is mounted; step 5, the controllable buoyant box is reversely buckled on the steel pipes, and water is injected into two ends of the steel pipes to make the steel pipes to gradually sink; step 6, after the steel pipes sink, the controllable buoyant box is dismounted, the dismounted controllable buoyant box is inflated to automatically float on the water surface, and trenches are backfilled. Interface butt welding, water surface transportation, pipeline pressure test, sinking and other procedures of pipelines spanning long-distance water channels can be realized. The construction principle is simple and easy to implement, construction machinery such as a large crane is not required, the sinking positions are accurate, and the method is low in cost, safe and reliable.

The invention discloses a self-adhesive aluminum plastic compound waterproof antisepsis coiled material that includes self-adhesive non-woven enhancing rub asphalt layer, whose upper layer has aluminum plastic film and the down surface has anti-seizing paper. It has the advantages of excellent effect to avoid water and gas filtering, strong concrete cementation force, strong flexibility, high stretching resistance and high tension stress, etc.

A combustion type waste gas treatment system is capable of oxidatively decomposing a hazardous combustible waste gas while heating efficiently with a structure which allows the waste gas to mix with an auxiliary burning gas efficiently without the occurrence of backfire in a waste gas inlet pipe. The combustion type waste gas treatment system has a burner part and a combustion chamber. Combustion flames are formed to extend from the burner part toward the combustion chamber, and a combustible waste gas is introduced into the combustion flames from waste gas inlet pipes thereby oxidatively decomposing the waste gas. A flow velocity accelerating device makes the flow velocity of the combustible waste gas flowing through the waste gas inlet pipe higher than the burning velocity of the combustible waste gas.

The present invention relates to an automatic endoscope leakage inspection apparatus and an inspection method thereof. The endoscope includes RFID tags having unique identification information depending on the types of various endoscopes, and the automatic endoscope leakage inspection apparatus includes an RFID module for reading the unique identification information of the endoscope from the RFID tags. The automatic endoscope leakage inspection apparatus manages the endoscope information depending on the types of various endoscopes, reads the unique identification information on the endoscope using an RF communication network, selects one piece of information on the endoscope corresponding to the read unique identification information and automatically processes the leakage inspection by the endoscope. The present invention can facilitate the leakage inspection by the endoscope and improve the accuracy of the leakage inspection by managing the data for each type of the various endoscopes using an RFID communication network.

The invention discloses a wound pipe heat exchanger. The wound pipe heat exchanger comprises two runners, namely a wound pipe inner heat transfer pipe (10) and an outer wound pipe (12). The wound pipe heat exchanger is characterized in that the wall surfaces of the two runners are wound to contact closely; the outer surface of the inner heat transfer pipe (10) is provided with a groove (10a); the outer wound pipe (12) consists of a wound pipe (12a) and a wound pipe inlet/outlet joint pipe (12b); the cross section shape of the wound pipe (12a) is matched with the cross section shape of the groove (10a); and the heat transfer medium in the inner heat transfer pipe (10) and the heat transfer medium in the outer wound pipe (12) flow in opposite directions and perform heat exchange through the contacted walls. The invention has the advantages of large heat exchange area, high heat transfer coefficient, reasonable runner layout, and is convenient in leak detection and maintenance and the like.

The invention belongs to the field of building processing, and particularly discloses processing equipment for an aluminum panel for a light-weight aluminum panel curtain wall. A working table is arranged on a rack; a fixing mechanism for fixing the aluminum panel is arranged on the working table; a polishing mechanism is arranged on the rack and comprises a sliding plate slidably connected onto the rack; an installation base is slidably connected onto the sliding plate; a rotary shaft is rotatably connected onto the installation base; a polishing roller is in spline connection onto the rotaryshaft; an installation plate is fixed to the end part of the rotary shaft; a pressure sensor is arranged on the surface of one side, close to the polishing mechanism, of the working table; a controller in signal connection with the pressure sensor is further arranged; the input end of the controller is used for receiving a pressure signal of the pressure sensor; and the output end of the controller controls the sliding speed of the installation base driven by a second drive piece and the sliding frequency of the polishing roller driven by a fourth drive piece. By adopting the scheme of the invention, the problem of lower manual polishing efficiency can be solved.

The invention provides a gas pipeline leak detection and alarm device with the emergency cut-off function. The gas pipeline leak detection and alarm device with the emergency cut-off function comprises a detachable pipe body, a movable sealing ball core, a detection sensor, an adjustable resistance spring, a gas flow regulation pipe, a sound and light alarm module and the like. The gas pipeline leak detection and alarm device with the emergency cut-off function is perpendicularly installed on a user gas pipeline, and by utilizing the principle that gas flow is generated because of differentialpressure formed in the pipeline under the situation of leakage during gas using, the light movable sealing ball core in the device is enabled to suspend in air, and then triggers the sound and lightalarm module to give out an alarm signal; under the situation that gas is overused or gas leaks out after the pipeline disconnects, the movable sealing ball core is stressed with thrust of gas flow below and quickly moves upwards till the movable sealing ball core completely seals a gas outlet to stop leakage, and the emergency cut-off function for safety is achieved; and after a user stops usinggas appliances such as a kitchen range and a water heater, the user gas pipeline automatically goes into the protection state for 24-hour leakage detection and alarm. The gas pipeline leak detection and alarm device with the emergency cut-off function has the advantages of being simple in structure, low in cost, high in safety, and capable of adapting to various places needing gas.

The invention relates to a hot-pressing hydrocarbon-generating simulation kettle, which relates to the technical field of simulation experiment devices, and is used for solving the technical problemsthat the equipment existing in the prior art is bulky and inconvenient in leak detection and maintenance. The hot-pressing hydrocarbon-generating simulation kettle comprises a reaction kettle used foraccommodating a rock sample, wherein one end of the reaction kettle is provided with an outer piston rod and an inner piston rod. Since the inner piston rod and the outer piston rod move in the samedirection, namely, the inner piston rod and the outer piston rod apply pressure to the reaction kettle in the same direction, so that the operation and detection speed is faster and the efficiency ishigher, thereby being more conductive to leak detection and maintenance. In addition, since the inner piston rod is arranged inside the outer piston rod, the entire hot-pressing hydrocarbon-generatingsimulation kettle can be more miniaturized.

The invention discloses a data processing method, a data processing device and electronic equipment. The data processing method comprises: receiving a retrieval request is received, wherein the retrieval request at least comprises entity keywords to be searched; in response to the retrieval request, obtaining a homonymous entity set based on the entity keyword; calculating the semantic similarity between the initial entity data in the same-name entity set; determining a plurality of groups of entity clusters with the same semantics based on the semantic similarity between the initial entity data; and performing fusion processing on the initial entity data in each group of same entity clusters to obtain a retrieval result, the retrieval result including the super-point data obtained by the fusion processing and the associated initial entity data. The technical problem that data information is easy to lose when the same-name entity data in the knowledge graph is stored in related technologies is solved.

The invention provides a tool plate-free leakage detection logistics system. The logistics system comprises an input device, a vacuum leakage detection device and an output device which are sequentially arranged, wherein a positioning tool is arranged at the front end of the input device, a positioning automatic plugging mechanism corresponding to the positioning tool is arranged in the vacuum leakage detection device, a positioning tool returning wire transmitting towards the lower part of the front end of the input device is arranged at the lower part of the front end of the output device, and lifting mechanisms corresponding to the front ends of the input device and the output device are respectively arranged at two ends of the positioning tool returning wire. According to the logisticssystem, workpieces are conveyed into the vacuum leakage detection device through the input device, are subjected to automatic positioning and leakage detection and are conveyed out through the outputdevice, so that the logistics system can meet the process performance requirements; and meanwhile, a tool plate is not required, so that the cost and the labor are saved, and the whole logistics system is high in operation speed, low in energy consumption and very high in efficiency.

The invention relates to the field of unmanned aerial vehicle examinations, and provides an unmanned aerial vehicle examination evaluation method and system for the problem of poor teaching effect ofan unmanned aerial vehicle, and the method comprises the steps: receiving a practical operation evaluation instruction, calling practical operation evaluation information according to the practical operation evaluation instruction, and sending the practical operation evaluation information to a first user side for practical operation flight evaluation; receiving assessment flight state informationof the first user side practical operation flight assessment, generating practical operation assessment result information according to the assessment flight state information, and sending the practical operation assessment result information to a second user side for display, wherein the practical operation evaluation instruction comprises a simulated practical operation evaluation instruction and a field practical operation evaluation instruction, when a simulated practical operation evaluation instruction is received, simulated practical operation evaluation information is called, and whenan on-site practical operation evaluation instruction is received, on-site practical operation evaluation information is called. The problem that the teaching effect of offline education of the unmanned aerial vehicle is poor can be solved. The invention also discloses an unmanned aerial vehicle examination evaluation system.

The invention discloses fire extinguishing agent filling equipment and a filling method thereof. The equipment comprises a vacuum pump, a first storage container, a first filling assembly, a second storage container, a second filling assembly, a third storage container, a third filling assembly, a fourth storage container and a fourth filling assembly. According to the fire extinguishing agent filling equipment, a fire extinguisher is vacuumized through the vacuum pump, and then the fire extinguisher is sequentially filled with at least one solvent stored in the second storage container through the second filling assembly, helium stored in the third storage container through the third filling assembly, at least one fire extinguishing agent stored in the first storage container through thefirst filling assembly, and nitrogen stored in the third storage container. According to the fire extinguishing agent filling equipment and the filling method thereof, vacuumizing and leakage detection are facilitated, the internal air pressure of the fire extinguisher is increased, the fire-extinguishing-agent filling pressure error caused by pipeline factors is effectively reduced, therefore thefilling efficiency is improved, and various filling requirements are met.

The invention provides a fast and accurate pipe leakage detector and its use method, comprising an ammonia storage tank, a pressure switch, a four-way pipe, a vacuum switch, a pressure gauge, a test joint, and a vacuum pump; the gas outlet of the ammonia storage tank is connected to the pressure switch One end of the pressure switch; the other end of the pressure switch, the pressure gauge, one end of the vacuum switch, and the test joint are connected through a four-way pipe; the other end of the vacuum switch is connected to the exhaust pipe of the vacuum pump. Through structural improvement, the invention can utilize the characteristics of ammonia gas to detect leaks on aluminum tubes and achieve higher precision. Compared with the traditional helium mass spectrometer leak detection method: the cost of the present invention is lower than that of the helium mass spectrometer, and the operation is simple; the present invention can facilitate the use of PH test paper for leak detection, so the process can accurately determine the location of the leak point. Compared with the common method of leak detection by means of compressed air and soapy water, the invention can identify smaller leak points, and helps to provide a more convenient and accurate inspection method for the welding leak detection of aluminum tubes.

The invention relates to a waterproof sealing assembly for a horizontal through-wall pipeline. The waterproof sealing assembly comprises a waterproof casing pipe and a water stop ring, wherein the waterproof casing pipe is arranged outside the through-wall pipeline pipeline in a sleeving mode, an inner check ring is arranged on the inner wall of the waterproof casing pipe, outer check rings are arranged at the two ends of the outer wall of the waterproof casing pipe outwards, inner wall wing plates are arranged at the positions, close to the inner wall surface of a wall, of the outer check rings, outer wall wing plates are arranged at the outer check rings, close to the outer wall surface of the wall, of the waterproof casing pipe, cavities are formed between the inner wall wing plates and the inner check rings on the same side and between the outer wall wing plates and the inner check rings on the same side, and sealing pieces are arranged in the cavities; and a cavity is formed between the inner wall of the waterproof casing pipe between the two inner check rings and the outer wall of the through-wall pipeline, a leakage detecting pipe communicating with the cavity is arranged on the outer wall of the waterproof casing pipe, one end of the leakage detecting pipe is connected with the outer wall of the waterproof casing pipe, and the other end of the leakage detecting pipe is connected with a high-pressure water pump or a grouting pump. In addition, the invention further relates to a leakage detection method of the waterproof sealing assembly. The problems that in the prior art, whether leakage exists in a cavity formed between the waterproof casing pipe and the through-wall pipeline or not cannot be detected, and treatment is inconvenient after leakage occurs can be effectively solved.

The invention provides a leak detection method of an air conditioner indoor unit. One port of a refrigerant pipe of an evaporator of the air conditioner indoor unit is provided with a self-sealing valve, and the other port is provided with a sealing head. The leak detection method comprises a refrigerant leak detection mode. The refrigerant leak detection mode involves injecting a refrigerant into the evaporator through the self-sealing valve and then carrying out leak detection operation on the refrigerant pipe of the evaporator by use of a refrigerant leak detector. According to the invention, the refrigerant is injected into the evaporator and then leak detection is performed on the evaporator by use of the refrigerant leak detector such that correlation devices such as a helium detection vacuum chamber, a helium storage device and the like are omitted, the equipment investment is reduced, operators can perform the leak detection on the evaporator conveniently through the refrigerant leak detector, the evaporator does not have to be placed into the helium detection vacuum chamber for the leak detection, the leak detection process is simplified, and the efficiency is improved.

The invention relates to the technical field of blast furnace smelting, aims to solve the technical problems of complex process and high time cost during leakage detection of a blast furnace cooling wall and provides a blast furnace cooling wall leakage detection device which comprises a blast furnace body, a water supply pipe, a water return pipe, multiple water incoming elbow flowmeters, multiple master water incoming pipes, multiple water outgoing elbow flowmeters and multiple master water outgoing pipes. The water supply pipe is arranged around the blast furnace body at a furnace base of the same, each water incoming elbow flowmeter is connected with one end of a cooling water pipe through one master water incoming pipe, the water return pipe is arranged around the blast furnace body at a furnace top of the same, each water outgoing elbow flowmeter is connected with the other end of the cooling water pipe through one master water outgoing pipe, and the water incoming elbow flowmeters and the water outgoing elbow flowmeters are in one-to-one correspondence. Whether the cooling water pipe on the cooling wall is damaged or not is judged by utilizing flow change of the water incoming elbow flowmeters and the water outgoing elbow flowmeters, so that the leakage detection process is simple and convenient, and quick leakage detection of the blast furnace cooling wall is realized.

The invention discloses a bilge water system and a ship and relates to the technical field of ship bilge water systems. The bilge water system comprises a bilge water pump, a water outlet pipe, a pressure water tank, a first water suction pipe, a suction port valve and a vent valve, wherein the bilge water pump comprises a water suction port and a water outlet, and one end of the water outlet pipeis communicated with the water outlet while the other end is communicated to the outboard of a ship; an outlet of the pressure water tank is communicated with the water outlet pipe; the other end ofthe first water suction pipe is communicated with a sewage well of the ship; the suction port valve is arranged on the first water suction pipe and is close to the sewage well; the vent valve is arranged at the highest point of the first water suction pipe and located between the suction port valve and the water suction port. The bilge water system solves a problem of air storage in the pipeline,shortens the exhaust time, can enable water to be always stored in the system pipeline, enables certain water pressure to be maintained in the pipeline, only enables water to seep out and does not enable air to seep in when a flange on the pipeline is not tightly sealed or loosened, and is convenient to check leakage of the pipeline.

The invention discloses an environment-friendly and energy-saving coking device and a working method thereof. The environment-friendly and energy-saving coking device comprises a coke furnace, an electrical tar precipitator, a tar and ammonia water clarifying tank and a power plant, wherein a drying section, a dry distilling section and a coke quenching section are sequentially arranged inside thecoke furnace from top to bottom; a control valve for controlling one-way flowing of a gas flow and a material is arranged between every two adjacent sections. The environment-friendly and energy-saving coking device is good in sealing performance, simple, convenient to operate and convenient to observe, reduces pollution to the outside to the minimal extent, and is low in equipment cost; througharrangement of a waste gas recycling device on the drying section, the problem of environmental pollution caused by direct discharge of gas released from the drying section of the current coke furnaceis solved, so that the environment friendliness of the environment-friendly and energy-saving coking device is improved; in addition, in the scheme, the ground floating roof-type tar and ammonia water clarifying tank is provided and the tar and ammonia water clarifying tank is arranged on the ground, so that the problems that 90% of the current tar and ammonia water clarifying tanks commonly built underground have leakage problems and the leakage checking difficulty is large are solved; the tar and ammonia water clarifying tank on the ground is reasonable in structural design, and leakage checking and maintenance thereof are easy.

The invention relates to a novel English teaching learning language system comprising a data exchange module connected with a teaching library module electrically. The teaching library module is electrically connected with an operation module; the operation module is electrically connected with a display module; and the display module is electrically connected with a voice module. The teaching library module consists of a knowledge storage module and an examination question storage module. The operation module includes a note module and an evaluation module. The operation module plays knowledge points stored into the teaching library module; the note system can consult key and difficult points and wrong questions to carry out consolidation and leak filling; the data exchange module carries out data interaction with a computer; the teaching library module separates knowledge points from examination questions; the note module is used for new knowledge reviewing and consolidation; and the voice module transforms text information into voice information, so that students can understand and receive knowledge conveniently. Therefore, the system can be operated simply; and on the basis of comprehensive knowledge, learning of students with different English learning levels can be realized.