40 results about "Leak detector" patented technology

1. Name of the product in this design: Infrared Leak Detector. 2. Purpose of this design: For detecting refrigerant leaks. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The utility model relates to a multichannel leakage detector simulation device. The simulation device comprises a channel selection module, a state switching module and a plurality of leakage detector simulation units. The channel selection module comprises a plurality of selection ends, each selection end is connected with one leakage detector simulation unit, and a common end of the channel selection module is connected with one end of the state switching module. The channel selection module is used for gating one of all the leakage detector simulation units. And each leakage detector simulation unit is a simulation measurement channel. And the state switching module is used for selecting a leakage mode or a non-leakage mode for the gated leakage detector simulation unit. The leakage detector simulation unit is used for simulating and generating output signals similar to those of a leakage detector in a nuclear power unit in different working modes. According to the utility model, high-efficiency multi-channel testing can be realized through modular design, the testing efficiency is improved, the reliability is high, and the maintenance and manufacturing cost is low.

1. The name of the design product: smoke leak detector (SD101). 2. The use of the design product: detecting automobile pipeline leakage. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: front view.

This invention belongs to the technical field of fast reactor installation, commissioning, operation, and routine maintenance, specifically relating to a local alarm device for a distributed sodium leak detector. A switch, power supply, alarm light, display screen, buzzer, and resistance display control meter are connected in series between two wires. The power supply and alarm light are grounded. After startup, tweezers at the end of the wires are used to clamp the two metal wires after the ceramic insulated terminal of the sodium leak detector to begin measurement. If a value is displayed, it indicates a short circuit in the sodium leak wire, and the location of the short circuit is determined. This invention quickly locates the fault point of the sodium leak wire, reducing the time and labor required for disassembling insulation during maintenance.

1. The name of the design product: helium mass spectrometer leak detector. 2. The use of the design product: for sealed objects, leak point positioning and quantitative detection instrument. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective drawing.

This invention discloses a helium leak detection system and method for supercapacitors. The system includes a sealed leak detection chamber, a vacuum pumping unit, a helium supply and recovery unit, and a helium mass spectrometer leak detector. The hollow sealed leak detection chamber is used to hold the capacitor to be tested. The sealed leak detection chamber is connected to the vacuum pumping unit, the helium supply and recovery unit, and the helium mass spectrometer leak detector. The vacuum pumping unit is used to perform a vacuum pumping operation inside the sealed leak detection chamber. The helium supply and recovery unit is used to fill the sealed leak detection chamber with a mixture of helium and nitrogen gas, and to recover and store the helium in the mixture. The helium mass spectrometer leak detector is used to detect the change in helium concentration in the sealed leak detection chamber in real time and convert the detected helium concentration signal into leak rate data. This invention is scientifically designed, has high detection accuracy, and can accurately detect the sealing performance of capacitors, determine whether there is a leakage problem, improve detection efficiency, and reduce detection costs.

This utility model belongs to the technical field of helium detection testing devices, and particularly relates to a helium detection testing device suitable for water-cooled systems. It includes a vacuum tank and a vacuum cover. An electron beam generator and a helium nucleus leak detector are respectively mounted on the vacuum cover. The vacuum tank also includes a storage tank and a storage cover. The storage tank has an injection port, and the storage cover has an outlet port. The vacuum tank has a docking mechanism for connecting the outlet port and the electron beam generator. The docking mechanism includes a rotating sleeve with a driven gear fixedly mounted on it. The vacuum tank also has a driving gear driven by a rotary motor. This helium detection testing device for water-cooled systems, through the gear transmission structure driven by a rotary motor, combined with the guiding action of the sliding guide rail and the guide ring groove, enables multi-directional rotation of the storage tank and the storage cover, precisely adjusting the docking position of the outlet port and the electron beam generator, significantly improving the docking accuracy.

The application discloses a leak rate prediction method of a leak detector based on function fitting and correlation analysis, relates to the technical field of helium mass spectrum leak detectors, and comprises the following steps: collecting a sequence of leak rates corresponding to a leak hole and time, and performing function fitting processing on the sequence of leak rates and time to obtain a leak rate attenuation characteristic model; collecting a real-time data fitting model corresponding to the leak hole, and performing correlation analysis on the real-time data fitting model and the leak rate attenuation characteristic model corresponding to the real-time data fitting model to determine a correlation analysis result; and finally, predicting the leak rate of the leak hole based on the correlation analysis result to determine a leak rate prediction result, so that the determination time can be greatly shortened within any leak rate range, and the leak detection efficiency is greatly improved.

This invention relates to the field of CFRP leakage detection technology, specifically to an in-situ CFRP leakage rate testing system under extreme thermo-coupling environments. The system comprises an extreme temperature environment simulation and mechanical loading subsystem, consisting of an environmental chamber and a mechanical loading unit; an in-situ helium mass spectrometry leakage detection subsystem, used to construct an independent helium chamber on one side of the sample; a molecular pump and a backing pump connected via stainless steel tubing on the other side of the sample; leakage detection using a helium mass spectrometer leak detector; and a multi-channel synchronous data acquisition and control subsystem, used for unified triggering of acquisition channels and software time correction; and for controlling environmental temperature, strain loading, real-time acquisition of leakage signals, and unified timeline display of multi-channel data. This invention improves the realism of environmental simulation, the continuity of detection, and the integrity of data correlation in CFRP leakage detection.

This invention discloses a dual-station helium detection device, relating to the field of helium detection technology. It includes two detection units, a leak detector, and a vacuum pump. Both detection units are connected to the leak detector and the vacuum pump. Each detection unit includes a first vacuum chamber, a second vacuum chamber, and a lifting mechanism. Compared to current dual-station helium detection devices, this invention features a first isolation component and a second isolation component. Through the cooperation of the first and second isolation components, the detection chamber within the detection unit is dynamically divided into a first working area and a second working area. When the workpiece to be tested in the first working area undergoes helium sampling detection, the vacuum pump can simultaneously purge residual gas from the second working area, avoiding the drawback of traditional equipment requiring additional time to purge residual gas after detection. The first and second isolation components have dynamic adjustment functions, thereby improving the utilization rate of the detection space and the adaptability of the equipment to various operating conditions.

The utility model relates to water -cooled engine cylinder cover leak detection technical field discloses a kind of water -cooled engine modularization cylinder cover automatic leak detection mechanism, including frame, the top of the frame is fixedly installed with leak detector electrical cabinet, the top of the frame is fixedly installed with compacting cylinder, the output end of the compacting cylinder is passed to the inside of frame and fixedly installed with lifting plate. In the utility model, engine cylinder cover is conveyed to equipment inside by the conveying roller group on the surface of frame, then compacting cylinder drives lifting plate and discharging rack to slide and fit engine cylinder cover top, to realize preliminary positioning, while the plugging mechanism and air intake mechanism on the bottom of lifting plate can be started leak detector electrical cabinet after the butt joint engine cylinder cover cavity;Compressed air enters the waterway of engine cylinder cover by air intake mechanism, system automatically judges whether qualified, reach the effect of substantially improving leak detection efficiency, reduce artificial labor intensity and artificial error.

This utility model discloses a digital cylinder leak detector, belonging to the technical field of automotive testing equipment. The leak detector includes a main metal body, a pressure regulating valve, an air hose, a digital pressure gauge, and a pressure relief valve. The digital pressure gauge features an LED digital tube, multi-color LED light strip, and a progress bar, which can calculate and display the percentage and status of cylinder pressure leakage based on pressure changes. Different color segments of the progress bar correspond to different leakage ratio ranges. The pressure regulating valve has an adjustment range of 0-150 PSI, and the pressure relief valve is preset to open at 120 PSI. The air hose connects to an extension tube and a testing connector via a quick connector, and is equipped with a detachable adapter to adapt to different spark plug hole sizes. The connecting components are fitted with O-ring seals on the external threads to ensure a seal, and the outer surface of the main metal body has an anti-slip structure. Compared with existing technologies, it has advantages such as intuitive display, strong adaptability, comprehensive safety protection, and convenient operation, effectively improving the efficiency and accuracy of cylinder testing.

1. The name of the design product: smoke leak detector. 2. The use of the design product: for detecting the leakage of the inlet and exhaust pipes of the automobile engine. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: front view.

The present application relates to the technical field of leakage detection, and discloses a positive pressure suction gun leakage rate detection method, device, equipment, medium and product, comprising: obtaining a measured positive pressure standard leakage rate obtained by detecting a positive pressure standard leak hole by a helium mass spectrometer leak detector and a background leakage rate obtained by detecting ambient air; determining a correction coefficient of the helium mass spectrometer leak detector according to the measured positive pressure standard leakage rate, the background leakage rate and a standard leakage rate of the positive pressure standard leak hole; obtaining a measured leakage rate of a system to be detected, which is obtained by detecting the leakage rate of the system to be detected by the helium mass spectrometer leak detector; and calibrating the measured leakage rate by using the correction coefficient and the background leakage rate to obtain a calibrated leakage rate of the system to be detected. The present application obtains the correction coefficient of the helium mass spectrometer leak detector by obtaining the measured positive pressure standard leakage rate and the background leakage rate, and calibrates the measurement value of the system to be detected by the helium mass spectrometer leak detector according to the correction coefficient, so that the calibrated leakage rate of the system to be detected with quantitative judgment value is obtained.

The application discloses a high-frequency assembly airtight tool, and relates to the technical field of high-frequency assembly detection. In the application, an airtight tool upper die is connected to the output end of a vertical driving part; an airtight tool lower die is arranged at a leak detection opening of a helium mass spectrum leak detector; an airtight test hole is in communication with the leak detection opening of the helium mass spectrum leak detector; two airtight assemblies are symmetrically and elastically arranged on a cutting position assembly; and the inner cavities of the airtight assemblies are used for tightly placing high-frequency assemblies. When the airtight assemblies are in close cooperation with lower sealing grooves, the airtight tool upper die is in close cooperation with upper sealing grooves, and the airtight tool upper die is connected to a helium gas output opening of the helium mass spectrum leak detector through a helium gas hose. The application is vacuumized through the leak detection opening of the helium mass spectrum leak detector, and a certain amount of helium gas is input into the inner cavity of the upper die cover through the helium gas output opening of the helium mass spectrum leak detector and the helium gas hose. If the helium gas in the inner cavity of the upper die cover is sucked into the inner part of the helium mass spectrum leak detector under negative pressure, the helium mass spectrum leak detector will give an alarm, which indicates that the high-frequency assembly is unqualified in airtightness.

This utility model discloses a liquid-cooled block airtightness testing device, comprising: a test chamber block having a cavity, an exhaust pipe connected to the test chamber block, and a leak detector connected to the exhaust pipe; the bottom of the test chamber block is provided with a mating interface for docking and installation with the liquid-cooled block under test, the mating interface communicating with the cavity, and the exhaust pipe communicating with the cavity; a first sealing ring is also provided between the mating interface and the first detection surface of the liquid-cooled block under test, and the liquid-cooled block under test is aligned and connected to the mating interface. This utility model's liquid-cooled block airtightness testing device adopts an offline testing method, which can quickly and conveniently test the sealing performance of the liquid-cooled block and the heating block mounting base, and its operation is simple, convenient, time-saving, and labor-saving.

The application discloses an online double-station helium detection equipment for electric compressors, comprising a rack, a conveying backflow module, a double-station vacuum test box module, a leak detector and a gas circuit unit are arranged on the rack. The conveying backflow module comprises an inlet upflow conveying line, a feeding conveying line, a first detection transfer line, a second detection transfer line, a discharging upflow conveying line and an L-shaped tray backflow conveying line, and a jacking transfer mechanism, a proximity switch and a blocking cylinder are arranged on each conveying line. The double-station vacuum test box module comprises a first vacuum test box and a second vacuum test box, and is connected with a vacuum pump and a pressure stabilizing pump respectively. The jacking transfer mechanism can jack up the tray to be in sealing connection with the vacuum test box, and the leak detector is connected with the inside of the test box. The application realizes double-station parallel online helium detection and tray automatic circulation backflow of the electric compressor, has high detection efficiency, good automation degree and compact structure, and is suitable for batch production lines.

The present disclosure relates to a probe assembly of a gas leakage detector and the gas leakage detector, the gas leakage detector is used for positioning a gas leakage point of a gas pipeline, the probe assembly comprises a detection tube with a collection channel, an acoustic-electric converter and a mounting cavity for accommodating the acoustic-electric converter, wherein a caliber of a collection end of the collection channel is not greater than a caliber of an exit end of the collection channel, and the acoustic-electric converter is arranged at the exit end of the collection channel. By setting the caliber of the collection end not greater than the caliber of the exit end, the gas leakage sound waves of the gas leakage point within the range defined by the caliber of the collection end can be allowed to enter the detection tube and be collected by the acoustic-electric converter, the interference of environmental noise is reduced, and the positioning accuracy of the gas leakage point of the gas pipeline is improved.

This utility model provides a concealed switch box for easy installation of gas valves, belonging to the field of gas pipeline switch technology. It includes connecting mechanisms at both ends of the concealed switch box, a valve body assembly communicating with the connecting mechanisms inside the concealed switch box, a rotary switch on the operating surface of the concealed switch box, symmetrically arranged locking components on the side of the concealed switch box away from the rotary switch, a sealing plate vertically erected in the center of the concealed switch box with an opening in the center, a sealing ring on the side of the opening facing the rotary switch, a connecting plate at the bottom of the sealing plate, and a leak detector on the side of the connecting plate away from the rotary switch. This utility model isolates the concealed switch box into two areas through the sealing frame and sealing plate, thereby reducing the diffusion range of a leak occurring at the connecting mechanism, allowing the leak detector to quickly detect whether a leak has occurred, and promptly cutting off the main switch when a leak occurs, thus improving the safety performance of the device.

The application relates to the technical field of vacuum leak detection, and discloses a signal transmission circuit and a helium mass spectrum leak detector. The signal transmission circuit comprises an amplifier board, a mantissa amplification circuit, an index amplification circuit, a signal conditioning circuit and an analog-digital acquisition board; the mantissa amplification circuit is connected with a DAC output port of the amplifier board, which is used for outputting a mantissa signal corresponding to mantissa data of to-be-transmitted data; the index amplification circuit is connected with a general input-output port of the amplifier board, which is used for outputting an index signal corresponding to index data of the to-be-transmitted data; the mantissa amplification circuit and the index amplification circuit are connected with the signal conditioning circuit; and the signal conditioning circuit is connected with an input end of the analog-digital acquisition board. In this way, the influence of interference on signal transmission in the helium mass spectrum leak detector is reduced.

The utility model relates to the technical field of safety valve detection, and discloses an intelligent pressure gauge safety valve detection device comprising a detection box, the left side in the detection box is provided with a connection chamber, the bottom end of the right side in the connection chamber is provided with a first connection pipe, and the top end of the right side in the connection chamber is provided with a second connection pipe. The first connecting pipe and the second connecting pipe are each provided with an adjusting valve and a connecting flange, and two sets of detection rings are arranged in the connecting cavity. According to the intelligent pressure gauge safety valve detection device, whether trace gas exists or not can be accurately detected through the electronic leak detector, meanwhile, once leaked gas exists, the gas enters the second detection cavity along the exhaust pipe and enters soapy water, the detection efficiency and accuracy are improved through a dual detection structure, and the detection efficiency is improved. And the soapy water in the second detection chamber can judge the displacement of the safety valve according to the generation rate of the bubbles, so that the problem of poor detection effect is solved.

A leak detection method (100) comprising: - a learning step (101) during which at least one reference measurement signal representative of the flow or concentration of tracer gas in a reference test object (A) or in an environment surrounding a reference test object (A) is measured during at least one leak test cycle (C), - a plurality of successive test steps (102) during which a measurement profile representative of the flow or concentration of tracer gas is measured using the leak detector (1) during at least one leak test cycle (C) and compared with the reference profile to provide, based on the result of the comparison, a similarity indicator allowing the presence of an anomaly to be deduced. Figure 1

The utility model discloses a kind of hydrogen leak detection mechanism and the generator fixed cold water system containing the mechanism, it is related to generator fixed cold water system technical field, including leak detector component and adjusting support, the rear side lower end of leak detector component is movably connected and installed with fixed frame component, the adjusting support is connected and installed in the one end of adjusting support away from fixed frame component.This hydrogen leak detection mechanism and the generator fixed cold water system containing the mechanism, by the movability of the structure of adjusting support, can provide the effect of double-section up-down folding adjustment in vertical direction for the whole device, while cooperating with the structural movability of adjusting support, axial rotation in horizontal direction can be realized, to ensure that leak detector component can have good structural adjustability, to realize the stable structure installation Also can have sufficient adjustability to facilitate operation, on the other hand, structural split use can be realized, to cope with different installation environment.

This utility model discloses a structure for an ion source drive board of a gas leak detector, relating to the field of gas leak detection technology. It solves the problems of excessive size and difficult maintenance associated with existing single-layer circuit board designs for ion source drive boards in gas leak detectors. The solution mainly includes: a stacked upper circuit board and a lower circuit board, connected by an inter-board connector for electrical and signal connections; large components are mounted on the upper circuit board; and control components are mounted on the lower circuit board. The stacked design using the inter-board connector improves space utilization, effectively reduces the size requirements of the ion source drive board, and facilitates maintenance and replacement.

This application discloses a leak detection fixture for hermetic-sealed encapsulated circuits and its usage method. The leak detection fixture includes at least one leak detection tray and one leak detection basket. The leak detection tray has vent holes and fixing holes at its bottom for supporting the circuit and allowing gas flow. The leak detection basket has a multi-layer tray structure and a detachable movable side beam as a limiting structure, capable of accommodating multiple leak detection trays simultaneously. The usage method is as follows: place the circuit into the leak detection tray, then sequentially place it on each layer of the leak detection basket and insert the movable side beam for fixation; place the entire leak detection basket into a pressure vessel for pressurization; after pressurization, remove the entire leak detection basket, and then remove each leak detection tray individually and place them into a helium mass spectrometer leak detector for leak rate detection. This application can fully utilize the vertical space of the pressure vessel, increase the number of circuits that can be pressurized at one time, achieve rapid batch leak detection, reduce the risk of appearance damage caused by repeated single-circuit handling, and significantly improve leak detection efficiency and product yield.

1. Name of the product in this design: Combustible Gas Leak Detector (Wall-mounted for confined spaces and underground). 2. Application of this design: For wall-mounted IoT sensing of confined spaces and underground combustible gas leakage monitoring. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The application provides a full-automatic differential pressure helium detection machine, and belongs to the field of air tightness detection devices. The machine comprises a rack, a differential pressure detection mechanism, a helium detection mechanism and a material conveying mechanism. The differential pressure detection mechanism comprises a detection pipeline. One end of the detection pipeline is connected to the interface of a product, and the other end of the detection pipeline is connected to an air charging device. A differential pressure instrument is connected to the detection pipeline. The helium detection mechanism comprises a sealed box, a helium leak detector and a helium detection pipeline. The sealed box is used for placing a product. The helium leak detector is arranged in the sealed box. One end of the helium detection pipeline extends into the sealed box and is connected to the interface of the product. The other end of the helium detection pipeline is connected to a helium charging device. The material conveying mechanism is used for driving the product to move to the differential pressure detection mechanism or the helium detection mechanism for detection. In the application, the differential pressure detection mechanism can screen out defective products with large leakage in advance. These defective products do not need to be detected for micro-leakage, so that the detection efficiency can be improved and the cost can be saved.