358 results about "Flame detector" patented technology

The invention discloses a building engineering construction site intelligent green spraying dust falling device which comprises an electric trolley, the top of the electric trolley is connected with a base, a supporting plate is installed at the top of the base, a first gear motor used for driving the supporting plate to rotate is fixedly installed on the outer wall of the base, and an air duct is installed at the top of the supporting plate in an angle-adjustable mode. A plurality of atomizing nozzles are hinged to the inner wall of the air outlet end of the air duct through hinge seats, the atomizing nozzles communicate with the annular water supply pipe, a driving mechanism is installed on the outer wall of the air outlet end of the air duct, the atomizing nozzles are in transmission connection with the driving mechanism, and the driving mechanism drives the atomizing nozzles to converge or diverge relative to the axis of the air duct; intelligent control system equipment is arranged on the electric trolley, and the intelligent control system equipment is configured to complete movement control over the electric trolley, orientation control over the air duct and orientation control over all the atomization nozzles on the basis of dust raising monitoring equipment arranged on a construction site and monitoring information collected by a flame detector.

The invention relates to the field of chemical incineration, in particular to a waste gas heat value self-adaptive combined combustor which comprises an ignition device, a flame detector, a sight glass, a hearth, a waste gas pipeline, a waste gas combustion-supporting pipeline, a main gas pipeline and a main gas combustion-supporting pipeline. Different types of waste gas can enter the hearth through the waste gas pipeline, the waste gas can effectively flow to the hearth under the action of the waste gas combustion-supporting pipeline, main gas can be better and fully combusted through the arrangement of the main gas pipeline and the main gas combustion-supporting pipeline, meanwhile, the ignition device, the flame detector and the sight glass are matched, and the combustion efficiency is improved. The high-concentration waste gas combustion-supporting device has the advantages that in the chemical incineration process, when the heat value of the waste gas is low, the waste gas can be sprayed into the hearth, when the heat value of the waste gas is high, combustion-supporting air and the high-concentration waste gas can be rapidly mixed, and meanwhile the effect of stabilizing waste gas flames can be achieved.

The invention discloses a flame simulator applied to a flame detector, the flame simulator comprises a shell, a reflective cup, a light source board, a light-transmitting board, a first temperature detection device, a power supply device and a controller; the reflective cup is located inside the shell; the reflective cup comprises a cup body, and a cup bottom and a cup mouth located on opposite sides of the cup body; a light-through hole is provided on the cup bottom; a light-emitting surface of the light source board is located in the light-through hole and faces the cup mouth side; the light-transmitting board is located on the side of the cup mouth away from the cup bottom; the first temperature detection device is located on the side surface of the light source board away from the reflective cup; the first temperature detector is used to obtain a first temperature of the light source board; the power supply device is located on the side of the light source board away from the reflective cup; the controller is located on the side of the light source board away from the reflective cup; the controller is electrically connected to the power supply device, the first temperature detection device and the light source board respectively, and the controller is used to control the light-emitting frequency of the light beam emitted by the light source board according to the first temperature, so as to improve the light beam intensity stability of the simulated flame provided by the flame simulator.

The invention relates to a flame detector based on a high curie point relaxor ferroelectric single crystal. The flame detector comprises a shell, a bottom plate, a shell cover, a PCB group, a main control module and an infrared sensor, the bottom plate and the shell cover are installed at the two ends of the shell respectively, the PCB set is arranged in the shell and is of a multi-layer structure, the main control module and the infrared sensor are connected with each other and are fixed to the PCB set respectively, and the optical lens is installed on the shell cover; the infrared sensor is a relaxor ferroelectric single crystal pyroelectric sensor, the chemical composition of the relaxor ferroelectric single crystal of the infrared sensor is (1-x-y) Pb (In1 / 2Nb1 / 2) O < 3-y > Pb (Mg1 / 3Nb2 / 3) O < 3-x > bTiO < 3-z > Mn, x is equal to 0.20-0.40, y is equal to 0.18-0.60, and z is equal to 0.003-0.03. Compared with the prior art, the system has the advantages of high anti-interference capability, long detection distance and the like.

The utility model provides a fire alarm monitoring device. The fire alarm monitoring device comprises a main body mechanism and a protection mechanism, the main body mechanism comprises a mounting shell, a temperature-sensing flame detector and a smoke-sensing flame detector, the temperature-sensing flame detector is mounted on one side of the mounting shell, the smoke-sensing flame detector is mounted on one side of the interior of the mounting shell, a mounting groove is integrally formed in one side of the mounting shell, and an alarm is mounted on one side of the interior of the mounting shell; the protection mechanism comprises a protection shell, the protection shell is in threaded connection with the mounting shell through a mounting groove, and dust screens are distributed and mounted on one side of the protection shell at equal intervals; according to the utility model, the protective shell is matched with the light shield and the dustproof net to protect the temperature-sensitive flame detector and the smoke-sensitive flame detector, and the dustproof net prevents dust from being in contact with the detection end of the smoke-sensitive flame detector to influence the smoke-sensitive sensitivity; the light shield prevents the environment light source from irradiating the probe of the temperature-sensitive flame detector to cause misjudgment of the temperature-sensitive flame detector.

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 utility model relates to the technical field of metal smelting efficient combustion equipment, in particular to a pure oxygen combustor which comprises a three-way distribution valve and further comprises an upper fixing plate, a mounting block and a lower fixing plate, the mounting block is arranged at the bottom of the upper fixing plate, and the lower fixing plate is embedded in the mounting block and is parallel to the upper fixing plate; the top of the upper fixing plate is fixedly provided with a natural gas cover, the top of the natural gas cover is communicated with a natural gas pipeline, the bottom of the upper fixing plate is provided with a plurality of natural gas branch pipes communicated with the natural gas cover, and the lower parts of the natural gas branch pipes are fixedly connected with the lower fixing plate; a pure oxygen pipeline is fixedly arranged on the upper fixed plate, and the lower part of the pure oxygen pipeline is fixedly connected with the fixed plate; an ignition gun pipeline, a flame detection pipeline and a flame detection standby pipeline are further fixedly arranged on the upper fixing plate. According to the utility model, the fuel entering the smelting furnace can be effectively combusted uniformly and fully, and meanwhile, the heating is more uniform.

The invention relates to a flame detector, which comprises a shell, a flame sensor, a circuit board and a power supply assembly, and is characterized in that the shell is used for being connected with a boiler; the flame sensor is located in the shell and used for generating an electric signal according to the flame condition in the boiler. The circuit board is installed at the end, away from the flame sensor, in the shell and electrically connected with the flame sensor. The power supply assembly comprises a photovoltaic cell panel, the photovoltaic cell panel is installed at the end, away from the flame sensor, in the shell, the circuit board and the flame sensor are both electrically connected with the photovoltaic cell panel, and a light inlet is formed in the side, close to the flame sensor, of the shell. The detector has the advantages that when external power failure occurs or an external power supply breaks down, the photovoltaic cell panel supplies power to the flame sensor and the circuit board, so that the detector can still work normally when the external power supply breaks down, and the reliability of the detector 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.

The utility model relates to the technical field of intelligent early warning and automatic fire extinguishing, and discloses a fire early warning and automatic fire extinguishing system for an electric vehicle charging shed. And an early-warning fire extinguishing assembly is arranged below the cross beam and comprises a medicament cabinet, a controller, an area box and an audible and visual alarm. The medicament cabinet is connected with a medicament main pipe which is connected with a spraying main pipe; and a stable, smog and cable type temperature sensing and flame detector is arranged at the bottom of the cross beam. The arranged early warning and fire extinguishing assembly can comprehensively monitor fire hidden dangers in the charging shed, and multi-dimensional and high-precision monitoring of the fire is achieved through multiple detection means such as a temperature detector, a smoke detector, a cable type temperature sensing detector and a flame detector. The detectors not only can quickly find fire at the initial stage of a fire, but also can transmit fire information to the controller in real time through the signal feedback main line, so that the accuracy and timeliness of fire early warning are ensured.

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 utility model relates to the technical field of instrument detection, in particular to a flame detector capable of displaying the detection range of an instrument, which comprises an instrument body, and a sensor array used for receiving flame signals is arranged in the instrument body. The instrument body is provided with a laser scribing mechanism, and the laser scribing mechanism comprises a turntable positioning seat, a turntable, an angle seat, a first laser pen and a second laser pen; the angle seat is provided with a central hole corresponding to an instrument detection center and a scribing hole corresponding to an instrument detection edge, the first laser pen is arranged in the central hole, and the second laser pen is arranged in the scribing hole; compared with the mode that a flame detecting instrument adopted in the traditional technology can only estimate the detection range during working, laser hinting scribing operation is added, the instrument detection range is clearer and more visible, the operation difficulty of on-site construction personnel is lowered, the on-site operation safety of the construction personnel is greatly improved, and therefore the flame detecting instrument has excellent practicability.

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 present invention relates to the field of fire detection technology, and specifically to a positioning system for the location of a fire based on flame detection, which can quickly realize the positioning of a fire area, divide a parking area into a plurality of square fire monitoring and protection areas, and each fire monitoring and protection area is respectively installed with flame detectors with a detection angle of 90 degrees at the four corners to form a flame detector array. When a fire point appears in a fire monitoring and protection area, at least three flame detectors in the flame detector array of the fire monitoring and protection area respond, and at most two flame detectors in the flame detector arrays of other protection and monitoring and protection areas respond. The position of the flame detector array is determined according to the number of flame detector responses, thereby determining the position of the fire monitoring and protection area where the fire point is located.

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 discloses a gas delivery device for waste gas treatment, which comprises a protection component, the protection component comprises a pipe body, a fixing frame is arranged on the outer wall of the top of the pipe body, a water storage tank is mounted at the top of the fixing frame, a supplement port is connected to the top of the water storage tank, a delivery pump is connected to the bottom of the water storage tank, and a connecting pipe is connected to the bottom of the delivery pump. One end of the connecting pipe is connected into the pipe body, a spraying frame is installed at the end of the connecting pipe, a flame detector is installed on the outer wall of the top of the pipe body, a detection head of the flame detector is connected into the pipe body, and a supporting assembly used for adjusting and supporting is arranged on one side of the pipe body and comprises a base. A hydraulic lifting rod is fixedly arranged on the outer wall of the top of the base through bolts, a rotating motor is installed at the top end of the hydraulic lifting rod, a rotating shaft is connected to the top end of the rotating motor, a pipe support is installed at the top end of the rotating shaft, and the position of the pipe support is matched with the pipe body.

The invention discloses a cleaning device for an offshore flame detector, and belongs to the technical field of fire detection. The cleaning device for the offshore flame detector comprises a cleaning frame, a fixing frame is in threaded connection with the interior of the cleaning frame, a motor is in threaded connection with the interior of the fixing frame, an insertion pipe is welded to the output end of the motor, a spring telescopic rod is in threaded connection with the interior of the insertion pipe, and a supporting plate is welded to the telescopic end of the spring telescopic rod; a first sponge block is connected to the supporting plate in a glued mode, a first belt wheel is welded to the output end of the motor, and a through opening is formed in the top of the cleaning frame and located above the top of the first belt wheel. The problems that in the prior art, a cleaning structure is lacked, a large amount of water is left on the surface of the flame detector under the influence of sea wind and seawater, seawater is corrosive, if the water on the surface of the flame detector is not cleaned in time, the flame detector is damaged, the sensitivity of the flame detector is influenced, and the flame detector is damaged are effectively solved. And the problems of false alarm and missing alarm are solved.

The utility model relates to the technical field of cellulose production, in particular to a combustion suppression system for a cotton powder conveying pipeline, which comprises a flame detector, a nitrogen injection component, an isolating valve and a controller, the nitrogen injection component comprises a nitrogen source and a nitrogen injection electromagnetic valve, and the nitrogen source is connected with the nitrogen injection electromagnetic valve through a nitrogen pipeline. The flame detector monitors the interior of the conveying pipeline in real time and monitors whether flames appear in the conveying pipeline or not, when flames appear in the conveying pipeline, the flame detector can capture flame signals within 5S and transmit the signals to the controller, the signals are analyzed and processed by the controller and then control the partition valve and the nitrogen injection electromagnetic valve to work, and the nitrogen injection electromagnetic valve is controlled to work. The partition valve quickly partitions the conveying pipeline, so that the nitrogen injection assembly injects nitrogen into the conveying pipeline, the nitrogen can restrain combustion of powder in the conveying pipeline, accidents are effectively handled in the germination stage, the use safety of the cotton powder conveying pipeline is improved, and the probability of accidents is reduced.

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.