39results about How to "Quick leak detection" patented technology

The present invention concerns a method of quantifying, detecting and localizing leaks or flows of liquid, gasses, or particles, in an oil or gas producing well (230). The method utilizes an acoustic transducer (150) arranged in the well (230). The method comprises steps of: (a) detecting signals (210) using the transducer (150), wherein the signals (210) are generated by acoustic noise from leaks (20) or flow of liquid, gasses, or particles in surroundings of the transducer (150); (b) amplifying the signals (210) to generate corresponding amplified signals for subsequent processing in a processing unit (170) disposed locally to the transducer (150); (c) filtering the amplified signals (210) over several frequency ranges using dynamic filtering for simultaneously detecting in these frequency ranges for better optimizing the signal-to-noise ratio by filtering away background noise in the amplified signals (210), and thereby generating corresponding processed data; and (d) sending the processed data from the processing unit (170) to a unit on the surface for storage and/or viewing of said data. The invention also comprises a corresponding system for implementing the method. The method and system are beneficially adapted for a continuous measurement up and/or down the oil or gas producing well. (230) in a non-stepwise manner.

A leak detection and identification system a Fabry-Perot etalon, an imaging lens, a microbolometer camera, and a computer for spectral and image data post-processing, wherein the data peaks are deconvoluted for use thus avoiding the need for bandpass filters.

The invention discloses a leakage detecting device, comprising a cylinder body and a piston arranged in the cylinder body. A cavity inside the cylinder body is divided into a first cavity and a second cavity which are separated by the piston; a piston rod is arranged on the piston; a plug for blocking a pipeline opening of a workpiece is arranged on an end head extending outside the cylinder body of the piston rod; a first through hole and a second through hole, which are connected with a gas source, are respectively arranged in side walls of the first cavity and the second cavity; the piston rod is formed by a pipe body; and an air inflation channel formed in the pipe body is respectively communicated with a connection pipe and the first cavity/the second cavity. Gas is rapidly filled into the first cavity or the second cavity, which is separated from the air inflation channel, and the piston is pushed by the gas, so as to drive the plug to rapidly block the connection pipe. Meanwhile, the gas is filled into the other cavity, so that the gas is inflated into the workpiece through the air inflation channel, so as to realize the rapid leakage detection of the workpiece.

In a calibration mode, an equilibrium period after pressurized gas is sealed in a device under inspection and a reference tank is divided into two periods; pressure-difference changes ΔP1 and ΔP2 are measured when a first-half equilibrium period of duration T1 elapses and when a second-half equilibrium period of duration T1 elapses, respectively; and a pressure-difference change ΔP3 generated in an inspection period of duration T2 is measured. A pressure-difference change CT2 generated for duration T2 from when a period of time in which the influence of an adiabatic change seems to become sufficiently stable elapses is measured. A drift correction coefficient K is calculated from these measured values using K=(ΔP3−CT2)/(ΔP1−ΔP2), is stored in a storage section, and is used in an inspection mode.

The invention provides a high-pressure clamped sealing gas injection tool being used for the leak detection of a tube column and having the function of trip prevention, which comprises two sets of clamped sealing components and a hollow tube type center column of which both ends are sealed; the two sets of clamped sealing components respectively comprise a sliding sleeve which can be sleeved on the center column in a slide way and a tubing sealer. A hollow cavity is arranged between the sliding sleeves and the center column and is sealed by a sealing ring; two through holes are arranged on the center column corresponding to the hollow cavity, are communicated with a center tube cavity and are communicated with the outside, wherein the through holes are respectively provided with a one-way valve, the disconnection and conduction directions of the one-way valves are opposite, and the conduction direction can be conducted at a set pressure difference, thereby forming a pressurization passage and a pressure relief passage. An input hole passage of a leak detection medium is arranged on a hollow tube wall. The lower end of the center column is also provided with a single-flow passage, and a single-flow valve which is outwards disconnected and inwards conducted is arranged in the single-flow passage. The leak detection tool provided by the invention has simple structure, high detection reliability and simple, convenient and easy site operation and can effectively prevent the potential safety hazard of tool trip during pressure relief after detection.

In one aspect, a hydraulic system including a reservoir, a hydraulic device, a first sensor, a second sensor and a controller is described. The reservoir is connected to the hydraulic device for supplying hydraulic fluid to and from the hydraulic device. The first sensor is adapted for measuring a first volume of the hydraulic fluid in the reservoir. The second sensor is connected to the hydraulic device such that at least one parameter being indicative for a second volume of the hydraulic fluid in the hydraulic device is measurable. The controller is adapted for calculating the second volume of the hydraulic fluid based on the at least one parameter. The controller is adapted for determining a leakage of hydraulic fluid in the hydraulic system based on the first volume and the second volume.

The invention provides an electronic cigarette oil leakage preventing device adopting a light-induced reversible deformation layer. The electronic cigarette oil leakage preventing device comprises a housing (12), a light source accommodation cavity (2) provided with a light source (1) in the inside and provided with a transparent light outlet wall (2-1), a light-induced reversible deformation layer (5) provided with a lighted side surface and a back-lighted side surface, and an elastic layer (6) tightly attached to the back-lighted side surface of the light-induced reversible deformation layer (5), wherein the lighted side surface faces the light source (1), an airflow outlet channel is defined between the lighted side surface of the light-induced reversible deformation layer (5) and the light outlet wall (2-1) and the housing (12), and an air inlet hole (8) and an air outlet hole (3) of the airflow channel are respectively formed in the housing (12), one end of every one of the two holes is fixedly connected with the light outlet wall (2-1) or the housing (12), the other end of every one of the two holes is attached to the lighted side of the light-induced reversible deformation layer (5), and therefore blocking of the airflow channel is formed.

The invention provides a novel pipeline rapid leak detection device capable of releasing colored gas, which comprises a leak detection device body. The leak detection device body comprises a lower boxbody and an upper box body, an upper arc-shaped plate is welded on the upper box body, a lower arc-shaped plate is welded on the lower box body, the upper arc-shaped plate is matched with the lower arc-shaped plate, spray heads are arranged on the outer wall of the upper box body and the outer wall of the lower box body correspondingly, rubber sealing nozzles are installed in the spray heads, connecting plates are welded to the upper box body and the lower box body, fixing frames are welded to the connecting plates, and rotating shafts are installed on the fixing frames. When the rapid pipeline leak detection device capable of releasing the colored gas is used, the tank body filled with the colored gas is matched with the connector through the pipeline, so that the required colored gas isinjected into the box body, and the colored gas in the box body is sprayed out from the interior of the nozzle through the change of internal air pressure in a pipeline leakage state, so that the leakage rate of the colored gas is improved. Therefore, the pipeline can be rapidly detected.

A method of detecting the leak-in of oxygen in an organic electroluminescent device via the extent of photo-degradation of the electroluminescent organic material is described. The photo-degradation of the electroluminescent organic material is induced by the presence of oxygen, and can be detected by comparing the photo luminescence of the material, before and after illumination of the material with light (e.g. form a laser). Photo-degradation due to the presence of oxygen in an encapsulated organic electroluminescent device is evidence for a leak in the device, which leak will result in a shorter lifetime of the device. The invention provides a fast, non-destructive method of inspecting organic electroluminescent devices on leakage, immediately after their production. Leak devices can be identified and discarded, even on-line.

The invention discloses a method for testing the sealing performance of a crimping terminal assembly of a crimping electric connector for a cable network, and the method comprises the following steps:1) filling a water storage device with water, and putting a sealed switching cavity into the water storage device; (2) opening a compressed air pressure reducing valve, wherein it is required that noobvious bubbles leak out of a sealed through connection cavity placed in the water storage tank; 3) inserting the wire end of the crimping assembly to be detected into the mounting hole of the sealing socket on the sealing adapter cavity, and putting the sealed transfer cavity into a water storage device; 4) putting the processed contact pin or jack terminal of the crimping assembly to be detected into a test tube, inverting the opening of the test tube, emptying air in the test tube, fixing the test tube and the test tube fixing tool, and putting the test tube and the test tube fixing tool into a water storage device; 5) opening the compressed air valve again, and adjusting the pressure value of the compressed air outlet; 6) observing the plugging position of the sealing socket and the to-be-detected crimping assembly wire by naked eyes, wherein it is required that no obvious bubbles can be seen; 7) opening a stopwatch to start timing, and checking the sealing performance of the assembly; and 8) closing the compressed air pressure reducing valve, taking out the sealed adapter cavity and the test tube fixing tool from the water storage device, and pulling out the to-be-tested assembly from the sealed socket and the test tube, thereby completing the airtightness test.

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 provides a galvanic pile membrane electrode leakage detection device which is used for detecting leakage of a galvanic pile membrane electrode plate, the galvanic pile membrane electrodeplate is provided with a first chamber and two groups of second chambers, the first chamber comprises an upper chamber and a lower chamber. The device comprises a vacuum box, a clamp, a leakage detection pipeline, a first connecting pipeline, a second connecting pipeline, a valve group, a leakage detector and a vacuum pump for vacuumizing a cavity, the leakage detection pipeline is used for communicating the interior of the vacuum box with one group of the second chamber, the upper chamber and the lower chamber; the second connecting pipeline respectively penetrates through the clamp and is communicated with the lower chamber and the two groups of second chambers; and the valve group comprises a plurality of valves for controlling the connection and disconnection of the first connecting pipeline, the second connecting pipeline and the leakage detection pipeline. The galvanic pile membrane electrode leakage detection device can simultaneously detect the inner micro leakage of a plurality of cavities relative to the plurality of cavities and the outer leakage of the plurality of cavities, and can quickly detect the leakage of the membrane electrode plate.

The invention provides a device and method for accurate leak checking on blast furnace tuyere small sleeves, and belongs to the technical field of blast furnace inspection tools and methods. The device and method are used for leak checking on blast furnace tuyere small sleeves. According to the technical scheme, a water inlet pipe chuck front connecting part is connected with one end of an unfastened water inlet pipe chuck trough front threads, a water inlet pipe chuck rear connecting part is connected with the other end of the unfastened water inlet pipe chuck through rear threads, and a steam trap is installed between the water inlet pipe chuck front connecting part and the water inlet pipe chuck rear connecting part. According to the checking method, the characteristic that the potassium permanganate changes the color after dissolving in water is utilized, which sleeve is leaking water can be determined according to the changes of the color of leaking water, and the results of leak checking are visual and accurate. The device is simple in structure and convenient to operate. The device and the method are the pioneering technologies for checking leak of blast furnace tuyere small sleeves, the problem, which is not effectively solved for a long time, that whether water leak happens cannot be judged is solved with the simple checking device and method, the problem that in the prior art, the sleeve which is leaking cannot be accurately positioned is further solved, and therefore, the device and the method have completely positive practical effect on production.

The invention provides a machining method for a condensation pipe of a condenser. The problems that an existing condensation pipe machining method is complicated and production cost is high can be solved. The method includes the following steps that first, a head is made, and then a stretcher is used for conducting multi-pass stretching on a copper alloy pipe blank; second, straightening is performed, and then a copper alloy pipe is subjected to saw cutting and deburring according to the required length; third, oil stains on the surface of the copper alloy pipe are scrubbed away, and copper cuttings inside the copper alloy pipe are blown down; fourth, annealing is conducted; fifth, internal threads and external fins of the copper alloy pipe are machined with a wire rolling mill and accordingly the condensation pipe can be prepared; sixth, straightening is performed again; seventh, total air tight testing is carried out, qualified products are put into an ultrasonic cleaning machine tobe cleaned and finally are aired or dried, and unqualified products are scraped; and eighth, finished product storage is conducted.