196 results about "Flame detector" patented technology

The invention discloses an infrared and ultraviolet flame detector with multiple safety redundancy and an anti-explosion control method, and relates to the technical field of flame detection, and the anti-explosion control method comprises the steps: S1, obtaining the multi-source fire data of a target object through a signal obtaining module; s2, analyzing the multi-source fire data through a dynamic coupling adjustment module; s3, performing time domain association verification on the first monitoring data through a time domain continuity verification module, and generating second monitoring data; and S4, the grading execution module sends an alarm signal according to the second monitoring data and adopts grading execution processing. Through ultraviolet polarization degree and dielectric constant dual-threshold triggering, interference of the metal reflective layer is stripped, so that the smoldering detection rate of a covered scene is increased from less than or equal to 60% to more than or equal to 95%; and moreover, the smoldering authenticity is subjected to cross validation through the bidirectional verification module, so that the problem of missing report of a traditional flame detector caused by a covering effect of'reflective interference 'on'smoldering monitoring' is avoided.

A flame detection system is disclosed. The flame detection system includes: an image capture unit configured to capture an image of a field of view (FOV); a flame detector configured to capture a first set of spectral band data and a second set of spectral band data; and a processor configured to classify the one or more images and the first set of spectral band data, assign a weight to each of the second set of spectral band data, receive a flame count for each of the second set of spectral band data, determine a weighted count for each of the flame counts, and determine a weighted count for each of the flame counts. A number of weighted counts exceeding its respective threshold is determined, and a flame is determined to be present within the FOV when the number is greater than or equal to a number threshold, and a flame is determined to be absent within the FOV when the number is less than the number threshold.

The invention relates to the technical field of infrared flame detectors, and particularly discloses a flame recognition method based on multiband infrared signal fusion. The method comprises the steps that S1, a main detection channel periodically obtains real-time main infrared signals, and three reference channels periodically obtain real-time reference infrared signals; s2, when the peak value of the real-time main infrared signal is larger than a fire behavior threshold value, spectral analysis is conducted on the real-time main infrared signal, the peak value main frequency is extracted, and the peak value main frequency is the frequency corresponding to the frequency band with the maximum power spectral density; s3, judging whether the peak main frequency is in an early warning frequency interval or not, if so, performing spectral analysis on the three real-time reference infrared signals acquired by the three reference channels, and extracting the peak main frequency of each real-time reference infrared signal; and S4, judging whether the peak main frequency of at least one real-time reference infrared signal is in the early warning frequency interval or not, and if so, judging that a fire occurs. According to the method, flame identification of scenes such as kitchens using artificial fire sources can be realized.

The invention belongs to the technical field of power equipment, and discloses an internal fire prevention and spontaneous combustion prevention integrated energy-saving power distribution control cabinet which comprises a power distribution cabinet, a sealing door and ventilation openings formed in the power distribution cabinet at equal intervals, and further comprises a pressure box installed at the top of a cavity of the power distribution cabinet and used for storing carbon dioxide, and an infrared flame detector and a visual sensor are fixedly mounted at the bottom of the pressure box. According to the scheme, when the infrared flame detector and the visual sensor are used for detecting that electric appliance elements in the power distribution cabinet are in fire, the electromagnet is powered off, the inner plate is pushed to move outwards under the action of pressure in the pressure box and the flow guide plate, and carbon dioxide sinks in the power distribution cabinet under the guidance of the inclined plane; and the carbon dioxide is adopted to replace a dry powder extinguishing agent, so that the protection effect of the device on electrical components in the power distribution cabinet is improved.

The invention discloses a gas turbine flame detector installation device and a light path determination method and system, and relates to the technical field of gas turbine safety monitoring and combustion diagnosis. The mounting device is connected with a combustion pressure cylinder and a flame tube through a displacement compensation assembly with a floating sealing structure, and can automatically absorb the thermal expansion difference between the combustion pressure cylinder and the flame tube and limit vibration disengagement so as to provide long-term stable support for a light guide tube; the invention relates to a light path determination method, which comprises the following steps: analyzing a combustion grading strategy, simulating and positioning a radiation core, primarily selecting a light path by taking a maximum coverage area as a criterion, carrying out dynamic space interference check, and finally outputting an accurate mounting position coordinate. The light path design method solves the dual technical problems that an experience-dependent light path design method is not accurate in the arrangement of the flame detector of the heavy-duty gas turbine, and the installation structure is damaged or the light path deviates easily due to thermal deformation.

The application belongs to the field of flame detector structure design, and particularly relates to a variable-diameter probe structure of an aviation high-temperature-resistant ion flame detector. The structure comprises a cooling air inlet pipe (1) which comprises a large-diameter section (11), a small-diameter section (12) and a variable-diameter section (13) between the large-diameter section (11) and the small-diameter section (12), wherein the variable-diameter section (13) is provided with cooling air inlet holes (14); a probe head (2) is arranged at the end of the small-diameter section (12) of the cooling air inlet pipe (1), the probe head (2) is a hollow cone structure, the apex of the cone is provided with a spherical surface, and a plurality of small holes (21) are arranged on the probe head (2). The application improves the cooling effect of the cooling air flow on the probe of the ion flame detector, reduces the ablation influence of the hot air flow on the probe of the ion flame detector, and further improves the high-temperature resistance of the ion flame detector.

This invention provides a smoke detection device for data centers. Due to the numerous lines in a data center, some lines or equipment may overheat and short-circuit, potentially generating smoke and igniting a fire. Therefore, it is crucial to detect smoke in the data center promptly and take timely protective measures. This smoke detection device for data centers includes a main body with an air outlet at the top and an air inlet at the bottom. The interior of the main body is divided into three annular channels: an outer channel, a middle channel, and an inner channel. Smoke sensors and gas sensors are installed sequentially from the outside to the inside of the outer and inner channels. The middle channel contains only a smoke sensor. Openings are provided between the outer and inner channels and the middle channel. Several circular openings are provided at the outlets of the outer and inner channels, each equipped with an electrically controlled valve. A flame detector is installed at the center of the bottom of the main body, and a main control device is installed at the center of the interior of the main body. This invention, through its multi-path detection structure and the use of various detectors, enables more accurate smoke detection.

A disposable forest fire detector, which mainly comprises a detection apparatus and a signal transceiving apparatus, wherein the detection apparatus comprises a trigger apparatus, a sound-producing apparatus, and an energy storage apparatus, the trigger apparatus being connected to the energy storage apparatus, and a sound-producing cavity being connected to the energy storage apparatus, and the trigger apparatus being used for triggering the energy storage apparatus to release energy that enables the sound-producing apparatus to operate. By means of using the detector, it is only necessary to widely cover a forest with sound-producing apparatuses for fire detection. After receiving signals, the signal transceiving apparatuses send the signals to a remote terminal of, for example, a fire command center, such that the detection of an entire fire can be completed. The sound-producing apparatus of the fire detector is small, light-weight, low-cost and environmentally friendly, and there is no need to deploy expensive smoke detectors or flame detectors.

The invention provides a new energy vehicle charging position fire blocking device which comprises a control box, an automatic spraying mechanism and a plurality of blocking mechanisms. The blocking mechanism comprises a partition box, a power motor, a wire wheel, a guide wheel, a pull rope, a sliding rail and a plurality of sliding blocks, the power motor and the wire wheel are located in the partition box, the sliding rail extends into the partition box, the wire wheel is connected with the power motor, the guide wheel is rotationally arranged on the sliding rail, the pull rope is connected with the wire wheel, the guide wheel and the sliding blocks, and the sliding blocks are arranged on the sliding rail and are in threaded connection with a supporting rod; fireproof cloth is arranged on every two adjacent supporting rods; the blocking mechanism is arranged on a longitudinal parking space line of the charging position, an ultraviolet flame detector is arranged on the partition box, two infrared detectors are arranged at each of the two ends of the charging position, the automatic spraying mechanism is arranged on the charging position, and the control box is electrically connected with the ultraviolet flame detector, the infrared detectors, the automatic spraying mechanism and the power motor. According to the method, the new energy vehicle on fire can be treated in time, and the caused economic loss is reduced.

The utility model discloses a mining wireless flame sensor convenient to mount and dismount, which comprises a shell, a circuit board and two detectors, the circuit board and the detectors are mounted in the shell, and the two detectors are respectively an infrared flame detector and an ultraviolet flame detector; the shell is mainly composed of a rear cover, a barrel and a front cover, the barrel is arranged between the front cover and the rear cover, one end of the barrel is detachably connected with the front cover, and the other end of the barrel is detachably connected with the rear cover; the circuit board is fixedly installed on the rear cover through a plurality of supporting columns and arranged in the barrel, the infrared flame detector and the ultraviolet flame detector are fixedly installed at the end, facing the front cover, of the circuit board, and a detection window corresponding to the infrared flame detector and the ultraviolet flame detector is arranged in the middle of the front cover. The shell of the sensor is composed of three parts, the circuit board is fixedly installed on the rear cover through the supporting column, the overall structure is simple, and installation and disassembly are convenient.

The invention discloses a double-detector linkage automatic fire extinguishing control method and system for an outdoor charging place, and belongs to the technical field of fire safety. The system comprises a water source supply unit, a detection alarm unit, a control execution unit and a fire extinguishing spraying unit. A dual detection mechanism of the temperature sensing detector and the flame detector is adopted, only when the two detectors give an alarm at the same time, the input and output module judges that a fire behavior is real, and signals are synchronously distributed to the automatic control switch, the fire control room and the charging control cabinet. The system provides an automatic, remote and manual three-start mode to ensure the reliability; the charging control cabinet automatically cuts off a power supply to prevent electric shock after receiving the signal; the anti-freezing design that an underground cement pool is combined with an overflow valve emptying pipeline is adopted, and normal operation can be achieved in the environment of minus 35 DEG C. According to the invention, the risk of false alarm of a single detector is thoroughly eliminated, the response time does not exceed 30 seconds, and the technical problems of low fire detection accuracy, poor winter adaptability and lack of power linkage protection in an outdoor charging place are effectively solved.

The utility model relates to an explosion-proof flame monitor, which aims at solving the technical problems that the existing explosion-proof flame detector needs to be always kept immovable when being fixed with a mounting frame through a bolt, one hand of a worker is occupied, and the mounting is troublesome, and comprises a U-shaped frame and a flame monitor body, the flame monitor comprises a U-shaped frame and a flame monitor body. A butt joint block is arranged at the top of a shell of the flame monitor body and connected with the front end of the U-shaped frame through a positioning structure. The positioning structure comprises an inserting block and a fixing block; the insertion block is fixedly arranged on the top side of the butt joint block; the fixed block is fixedly arranged at the front end of the U-shaped frame; the inserting block is inserted and matched with an inserting groove formed in the bottom side of the fixing block; the flame monitor fixing device has the advantages that when the flame monitor body is installed and positioned, the flame monitor body is preliminarily positioned through butt joint of the insertion block and the fixing block, and the flame monitor body is fixed with the follow-up part.

The utility model provides a new energy automobile is with fire safety house, including the fire safety house for setting in parking stall, its characteristics are: the fire safety house one end's vehicle import and export place sets the gate that can open and close, the top of fire safety house body sets the water tank, and the water tank has the water inlet. The sidewall interval of fire safety house body is the sink, or sets up the separate sink in the inside or the outside of fire safety house body sidewall, and the water outlet of water tank connects the top of sink, and the bottom of sink is linked with the water flow export that sets up in the sidewall bottom of fire safety house, and sets up the drain that can open and close on the bottom surface of fire safety house. The upper portion or the bottom surface in the fire safety house body sets up the flame detector or / and temperature sensor, and the fire safety house body configuration controller, and the flame detector or / and temperature sensor are connected with controller. Can discover new energy automobile fire in time, and rapidly give new energy automobile cooling, and isolate with surrounding environment, prevent fire spreading, reduce property loss.

The application discloses a mobile fire detection system and method, and belongs to the technical field of fire detection. The system realizes over-distance accurate positioning and sub-pixel level precision. Through a unique "polynomial fitting + extreme value calculation" algorithm, the system can perform three times curve fitting on the signals of 2-3 detection units covered by the fire source imaging, and can analyze the sub-pixel level center coordinates by derivation. In combination with a preset coordinate mapping table, the fire source positioning precision can be improved to within 0.3 meters at a distance of 150 meters, and the specific tunnel post number and lane position can be accurately output, so that the limitation of the traditional detector that can only give an area alarm is completely changed. In terms of adaptability to complex environments, the application not only solves three major pain points of the traditional flame detector, i.e., positioning loss, weak anti-vibration and high false alarm rate, but also provides a complete set of high-reliability, intelligent and practical fire monitoring and emergency command tools for tunnel safety.

1. The name of the design product: composite flame detector (infrared / ultraviolet). 2. The use of the design product: used in semiconductor equipment such as atomic layer deposition (ALD) and wet cleaning, by detecting the special wavelength of ultraviolet and infrared radiation emitted by the flame, and identifying the flickering frequency of the flame characteristics, to detect the flame. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

The invention discloses a fire detection method and system applying an infrared flame detector, and relates to the technical field of intelligent sensors. The detection method comprises the following steps: deploying a multi-mode collaborative sensing node network in a target area, and transmitting multi-source sensing data in real time; starting a compensation mode in an over-limit area of the carbon dioxide concentration, and judging whether an initial alarm signal is generated or not; when an initial alarm signal is received, synchronously acquiring multi-source sensing data in the same acquisition period, and triggering a secondary judgment mechanism; the technical key points are as follows: the operation of the scheme not only ensures that the fire extinguishing system is not mistakenly triggered due to CO2 thermoluminescence under a complex thermal working condition so as to ensure the continuity of production, but also greatly retains the response capability to real burst flames under the condition of not sacrificing the safety, so that the whole scheme can adapt to extreme working scenes.

The utility model provides a kind of modularization flame detection module based on pyroelectric principle, to solve the technical problems that existing flame detector cannot modularization design, structure is more complex, production and after-sales debugging are complicated.The utility model includes circuit board, and single-chip microcontroller, external output interface and at least two sensors are equipped on circuit board, and at least two sensors are connected with single-chip microcontroller respectively through a signal processing circuit, and external output interface is connected with single-chip microcontroller.The utility model modularization design and concentrate in a small size circuit board to the core circuit, separate component modularization, facilitate production test, save a lot of time for the production of complete machine, improve production efficiency;Modularization design makes production process more standardized and flow, reduces uncertainty and complexity in production;Shorten production cycle, improve efficiency, also save a lot of time for the research and development of complete machine;With specific function and interface, different specifications of product can be built.

The utility model discloses a device for monitoring natural gas combustion of a metallurgical furnace. The device comprises a flame detector, a flame detector fire observation mirror, a flame detector protection mirror, a flame detector outer tube and a cooling device, one end of the flame detector outer tube is in threaded connection with the flame detector; the flame detector fire observation mirror is located in the flame detector outer tube and connected with the flame detector. The cooling device is arranged outside the flame detector outer tube; the flame detector protection glass is located in the flame detector outer tube and located on the front side of the flame detector fire observation glass. Negative pressure fluctuation and dust can be isolated through the flame detector protection mirror and the flame detector outer tube, the flame detector fire observation mirror and the flame detector are protected against damage, the temperature of the flame detector and the flame detector outer tube can be effectively reduced through the cooling device, damage caused by high temperature is prevented, and the service life of the flame detector is prolonged. And the safety and reliability of the whole monitoring system are improved, so that the operation efficiency and the production benefit of the kiln are improved.

The invention provides an anti-adhesion regeneration roller for asphalt recovery and a control method thereof, and the anti-adhesion regeneration roller comprises a base, a roller body is rotatably mounted on the base, and the roller body is divided into a plurality of heating areas along the axial direction; the multiple combustion assemblies are arranged at intervals in the axial direction of the barrel body and correspond to the heating areas one to one in position; the combustion assembly comprises a combustion cover arranged on the outer wall of the barrel in a sleeving mode, a combustion nozzle arranged at the bottom of the combustion cover, an opening degree adjusting valve arranged on a connecting pipeline of the combustion nozzle and the fuel supply equipment, a barrel wall temperature measuring device and a flame detector. The regeneration roller provided by the invention realizes uniform and stable control of the temperature of the roller wall through the axial partition design and independent and accurate adjustment of fuel supply to each area, so that the adhesion of high-mixing-amount RAP is effectively prevented, and the heat exchange efficiency and the production continuity are remarkably improved.

A flame detector including: a plurality of detectors; a plurality of filters; a plurality of non-imaging optical concentrators having an entrance arranged to receive light incident on the flame detector and an exit arranged to deliver the light to a coupled detector. A first of the plurality of filters transmits light of a first wavelength range to a first of the detectors, and a second of the plurality of filters transmits light of a second wavelength range to a second of the detectors, wherein the second wavelength range is different from the first wavelength range.

The utility model relates to a flame detector purging device, which is structurally characterized in that a flame detector is mounted in an outer protective cover, the detection end of the flame detector is aligned to the combustion flame direction of a boiler, the outer protective cover comprises a top cover and a stainless steel shell which are mutually connected, and a detection hole is formed in the side surface of the stainless steel shell and corresponds to the detection end of the flame detector; the top cover is provided with an air pipe connector and a flame detector connector, the flame detector is installed in the stainless steel shell through the flame detector connector, the air pipe connector is connected with one end of a purging air pipe, and the other end of the purging air pipe is externally connected with a micro air pump. The electric eyeshade has the advantages that the structural design is simple and reasonable, a common electric eyeshade in the prior art is designed into the electric eyeshade with the air purging function, and the electric eyeshade is externally connected with the micro air pump for purging, so that condensation can be effectively avoided, good light transmission of the flame detector in the flame detection direction can be ensured, and the problem that the boiler flame detector is interfered by condensate water or dust can be solved; and the boiler operation stability is improved.

The utility model provides an intelligent optical fiber line monitoring system. The intelligent optical fiber line monitoring system comprises an environment monitoring module, an optical fiber line monitoring module, a test module and an upper computer, the environment monitoring module comprises a temperature sensor, a humidity sensor, a wind power sensor, a rainfall sensor, a flame detector, a radar sensor and a first processor, and the monitoring module comprises an optical power monitoring module and an optical switch switching module; the test module is used for measuring a fault line to obtain a fault position; and the upper computer generates a detection result by collecting, storing and processing the detection result data. The optical fiber monitoring and early warning system completes real-time monitoring and early warning of optical fibers, has the advantages of low cost, stability, reliability, good expansibility, fast alarm speed, simple operation and convenient maintenance, improves the management quality of optical fiber communication quality monitoring, reduces the workload of optical fiber communication maintenance personnel, and ensures the safe and efficient operation of an optical fiber communication network.

This invention discloses a stable combustion control system based on a multi-dimensional furnace combustion measurement method, specifically relating to the field of furnace combustion measurement. This includes multi-dimensional sensor data acquisition, feature parameter quantification and extraction, combustion stability modeling, intelligent graded stable combustion control, iterative optimization of control effect, and dynamic evaluation of combustion state. Multi-dimensional sensor data acquisition involves synchronously acquiring data through an array of sensors. Feature parameter quantification and extraction involves preprocessing the acquired data to extract key feature parameters. Combustion stability modeling involves constructing a quantitative evaluation model of the combustion stability index based on the key feature parameters. Intelligent graded stable combustion control involves triggering a three-stage direct injection response mechanism for the fuel gun based on the combustion stability index, combined with an adaptive energy matching algorithm to dynamically adjust the stable combustion energy injection. This invention, through a multi-dimensional sensor array and feature extraction algorithm, achieves advanced identification of early combustion deterioration, solving the problem of lag in single flame detector monitoring.

The utility model relates to flame detector test technical field, concretely is a kind of flame detector testing device, including workbench and gas tank, the workbench is equipped with detection box, the detection box is equipped with sealing mechanism, ventilation mechanism, lighting mechanism, detector assembly mechanism and camera mechanism, the bottom of the workbench is equipped with support mechanism and drive motor, the inside bottom of the detection box is equipped with mounting groove, the mounting groove is equipped with bearing seat, the bearing seat is equipped with adjusting disc, the adjusting disc is equipped with burner, this structure is rotated by drive motor output end and drives adjusting disc, with the effect of bearing seat, adjusting disc can be stably rotated, to flexibly adjust the angle position of burner in detection box, lighting mechanism can conveniently simulate different light scenes, the performance of flame detector under complex light environment is comprehensively tested, and the accuracy of detection result is further improved.

1. Name of the product in this design: Flame Detector. 2. Purpose of this design: For use in flame detectors to detect flames. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model relates to the technical field of probe protection supports, in particular to a tunnel flame detector probe protection support which comprises a bottom plate, a fixing block, a U-shaped frame and a protection assembly. When the flame detector probe protection device is used, the protection support formed by connecting the bottom plate, the fixing block, the U-shaped frame and the protection assembly covers the flame detector probe, so that the probe is located in the protection range of the support, the detector probe is protected, and the probe is prevented from being damaged due to direct external impact; when the U-shaped frame deforms due to collision, the U-shaped frame can be conveniently disassembled and replaced, the whole protection support does not need to be replaced, the service life of the support is prolonged, the protection support is simple in structure and convenient and fast to install, and through the protection assemblies arranged at the corners of the two sides of the U-shaped frame, the support is buffered and protected, and meanwhile the protection effect is improved. The bracket is prevented from causing great damage to an object, and the bracket has better practicability.

The application relates to the technical field of pulse flame detectors, and discloses a double-channel pulse flame detector which comprises a base, a clamping block is fixedly arranged at the upper end of the base, a heating assembly is movably arranged at the upper end of the base, the clamping block is clamped and fixed at the upper end of the heating assembly, a tail gas outlet part is fixedly arranged at the upper end of the heating assembly, the heating assembly comprises a bottom assembly, a rotating assembly and a top assembly, and the bottom assembly is clamped and fixed in the upper end groove of the base. The double-channel pulse flame detector structure with intermittent combustion is provided, the pulse flame with a certain frequency, the unique combustion chamber design and the unique ignition design make the detector have the effect of not being extinguished, the problem of the background noise of the continuously combusting flame is solved, the quenching effect is reduced as much as possible, the multi-element detection and the double-channel output structure are arranged, the selective detection of elements is realized, and the S / P, S / C or any two element signals can be simultaneously output.

The utility model discloses a testing device for detecting the performance of a flame detector by open fire, which relates to the field of flame detectors and comprises an open fire detector, a flame projector is mounted at the bottom of the open fire detector, a fire inlet pipeline is arranged in the open fire detector and is positioned at the top of the flame projector, and the flame detector is provided with a flame outlet. A combustion bin is arranged in the open fire detector, a fire collecting hole is formed in the top of the combustion bin, the end of the fire collecting hole is connected with a fire outlet pipeline, and a fire discharging hole is formed in the top of the open fire detector. According to the flame detector, the problem that the jetting direction of flames jetted by detection equipment of an existing flame detector is prone to being changed, and danger is caused to detection personnel is solved, the flames jetted by a flamethrower enter the combustion bin through the fire inlet pipeline, then the flames flow into the fire outlet pipeline through the fire gathering holes in the top, and the fire outlet pipeline is arranged to be in a circular ring shape; therefore, the path length of the flame flowing out of the fire outlet pipeline is increased, and the flame sprayed out of the fire discharging holes is reduced.

The invention relates to the technical field of gas turbine safety, in particular to a detector with a cooling device and a flame recognition method of the detector. The invention provides a detector with a cooling device, which comprises an outer shell, an inner shell arranged in the outer shell and a flame detector arranged in the inner shell, and an interlayer is formed between the outer shell and the inner shell; the air pipe joint extends into the inner shell from the outer part of the outer shell, the inner shell is provided with a ventilation hole, and the silencer extends into the interlayer from the outer part of the outer shell; the positions, facing the flame detector probe, of the outer shell and the inner shell are each provided with an installation hole, and light-transmitting mirror faces are arranged on the installation holes. And flame monitoring is realized through a flame identification method, and generation of false alarms is reduced. The technical problem that in the prior art, flame monitoring reliability is not high is solved.

An alignment device for use with a flame detector having a field of view includes a body, a visualization system in connection with the body and including a light source positioned at a fixed position relative to the body, and an optics system including one or more optical elements which interact with a beam of light from the light source to project a pattern of light indicative of an area of the field of view of the flame detector for a determined distance from the flame detector. The indicated area of the field of view is larger than an area of a projection of the beam of light from the light source. The alignment device further includes a connector in connection with the body to place the alignment device in removable connection with the flame detector.