Air-breathing smoke-sensing fire detector for high-speed airflow environment of data center

Abstract

The utility model discloses a data center high-speed airflow environment air-breathing type smoke-sensing fire hazard detector, which relates to the field of smoke-sensing fire hazard detectors and comprises a sampling unit module, a detector module, an airflow adjusting module and a fire extinguishing linkage module. The data acquisition unit is electrically connected with the data processor through a wire, the data acquisition unit and the data processor are electrically connected with the central controller through a wire, and antistatic PVC (polyvinyl chloride) pipelines are adopted, are arranged at the top of the cabinet and under the raised floor and are provided with a plurality of sampling holes; according to the utility model, the performance index of the air-breathing smoke-sensing fire detector in a high-speed airflow environment of a data center is comprehensively improved by optimizing a detection technology, airflow control and an intelligent algorithm, micron-sized particles are captured through the high-efficiency particle air filter, and the concentration is detected through the scattering effect of smoke particles on an LED (Light Emitting Diode).

Description

TECHNICAL FIELD

[0001] The utility model relates to a smoke fire detector field, concretely is a data center high -speed airflow environment suction type smoke fire detector. BACKGROUND

[0002] The smoke detector is also called smoke fire detector, smoke detector, smoke detector, smoke detector and smoke sensor, the base of the smoke detector has four conductor pieces, the piece has a terminal, the base is not set and is positioned card, and the direction of the detector alarm confirmation lamp is adjusted conveniently. The detector bus in the wiring pipe is connected to the two terminals on the diagonal, and the other pair of conductor pieces is used for auxiliary fixing the detector.

[0003] The conventional suction type smoke detector has the following deficiencies in the data center, the high-speed airflow is easily disturbed, the airflow generated by the data center air conditioning system is usually 5-10m / s, the smoke concentration is diluted, the detection is delayed, the false alarm rate is high, the dust and static electricity interference easily trigger false alarm, the maintenance is complex, the conventional filter system is easily blocked, and frequent cleaning is needed.

[0004] Therefore, the technical personnel in the prior art provide a data center high-speed airflow environment suction type smoke fire detector to solve the problems in the background art. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a data center high-speed airflow environment suction type smoke fire detector to solve the problems of the conventional suction type smoke detector in the data center, such as the high-speed airflow being easily disturbed, the airflow generated by the data center air conditioning system being usually 5-10m / s, the smoke concentration being diluted, the detection being delayed, the false alarm rate being high, the dust and static electricity interference easily triggering false alarm, the maintenance being complex, the conventional filter system being easily blocked, and frequent cleaning being needed.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A data center high-speed airflow environment suction type smoke fire detector, comprising a sampling unit module, a detector module, an airflow adjusting module and a fire extinguishing linkage module,

[0008] The sampling unit module is internally provided with a data collector, a data processor and a central controller, the data collector and the data processor are electrically connected through wires, and the data collector and the data processor are electrically connected with the central controller through wires, an antistatic PVC pipe is adopted, and wires are uniformly arranged on the top of the cabinet and under the elevated floor, and a plurality of sampling holes are formed.

[0009] The detector module is internally provided with an LED scattering sensor, and the detection sensitivity of the LED scattering sensor can be adjusted in a range of 0.0001%-20% obs / m.

[0010] The air flow adjusting module is internally provided with an eddy damper and a dynamic flow controller, and the air flow adjusting module is provided with a proportion adjusting valve which is built in the spiral flow guide structure.

[0011] The fire extinguishing linkage module is internally provided with a control unit, a fire alarm signal detection unit, an FAS host and a linkage fire extinguishing device, the control unit is built in a smoke identification algorithm, the control unit is internally provided with a multi-protocol communication, the control unit communication is integrated into a data center BMS, and the FAS host is internally provided with a dynamic alarm threshold.

[0012] As a preferred embodiment of the utility model: in the detector module, the detection unit module includes a high-sensitivity LED scattering sensor and a multi-stage filtering system module.

[0013] As a preferred embodiment of the utility model: in the air flow adjusting module, the sampling air flow velocity of the eddy damper is stable in a range of 0.5-2 m / s, and the eddy damper is built in stainless steel spiral blades.

[0014] As a preferred embodiment of the utility model: in the sampling unit module, the inner diameter of the anti-static PVC pipeline can be selected as 6 mm, the sampling hole interval can be selected as 1.5 m, and the hole diameter can be selected as 2 mm.

[0015] As a preferred embodiment of the utility model: in the fire extinguishing linkage module, the calculation method of the dynamic alarm threshold is: dynamic alarm threshold = reference value x air flow correction coefficient.

[0016] As a preferred embodiment of the utility model: in the fire extinguishing linkage module, the smoke detection response time of the fire alarm signal detection unit is less than 30 seconds, and the false alarm rate is less than 0.1% / year.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] The utility model relates to a kind of data center high-speed airflow environment suction type smoke fire detector, vortex damping and dynamic flow control technology combination, targeted solution high-speed airflow problem, support AI-driven interference filtering, false alarm rate reduces 80%, reduce the downtime loss of data center due to false alarm, through optimization detection technology, airflow control and intelligent algorithm, the performance index of suction type smoke fire detector in data center high-speed airflow environment is comprehensively improved, with significant practical value and market prospect, by efficient particle air filter, for capturing micron grade particulate matter, detect concentration by the scattering effect of smoke particles to LED. BRIEF DESCRIPTION OF DRAWINGS

[0019] Other features, objects and advantages of the utility model will become more apparent through reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0020] Figure 1 It is a kind of data center high-speed airflow environment suction type smoke fire detector's detector overall structure schematic diagram;

[0021] Figure 2 It is the working principle diagram of airflow regulating module in a kind of data center high-speed airflow environment suction type smoke fire detector;

[0022] Figure 3 It is the structure schematic diagram of the working principle of proportion regulating valve in a kind of data center high-speed airflow environment suction type smoke fire detector;

[0023] Figure 4 It is the structure schematic diagram of system logic block diagram in a kind of data center high-speed airflow environment suction type smoke fire detector. DETAILED DESCRIPTION

[0024] Please refer to Figures 1-4 The utility model embodiment, a kind of data center high-speed airflow environment suction type smoke fire detector, including sampling unit module, detector module, airflow regulating module and fire extinguishing linkage module,

[0025] Sampling unit module: data collector, data processor and central controller are equipped in sampling unit module, and data collector and data processor are electrically connected by wire between, data collector and data processor and central controller are electrically connected by wire between, adopt antistatic PVC pipeline, wire is evenly distributed in cabinet top and overhead floor, and is equipped with several sampling holes;

[0026] The detector module is internally provided with an LED scattering sensor, and the detection sensitivity of the LED scattering sensor is adjustable in a range of 0.0001%-20% obs / m. The detection unit module comprises a sampling port, a filtering module, a detection unit module, a control unit module and an air suction pump. The detector module is internally provided with a spiral flow guide structure and a tapered cavity tangential air inlet. A three-stage filtering system is adopted, i.e. primary efficiency, HEPA and electrostatic adsorption, to filter dust and impurities. The laser scattering sensor dynamically adjusts the sensitivity to adapt to different airflow velocities.

[0027] The airflow adjustment module is internally provided with a vortex damper and a dynamic flow controller. The airflow adjustment module is provided with a proportioning valve which is built in the spiral flow guide structure. The proportioning valve reduces the airflow velocity through the spiral flow guide structure. The dynamic flow controller adjusts the power of the sampling pump in real time according to the airflow velocity.

[0028] The fire extinguishing linkage module is internally provided with a control unit, a fire alarm signal detection unit, an FAS host and a linkage fire extinguishing device. The control unit is internally provided with a smoke identification algorithm. The control unit is internally provided with a multi-protocol communication. The control unit communication is integrated into a data center BMS. The FAS host is internally provided with a dynamic alarm threshold. The smoke identification algorithm based on machine learning distinguishes between real fire alarms and interference signals. The multi-protocol communication supports Modbus, BACnet and TCP / IP, which facilitates integration into a data center BMS system.

[0029] The vortex damper and the dynamic flow control technology are combined to solve the problem of high-speed airflow. The AI-driven interference filtering reduces the false alarm rate by 80% and reduces the downtime loss of the data center caused by false alarms.

[0030] In the detector module, the detection unit module comprises a high-sensitivity LED scattering sensor and a multi-stage filtering system module. In the airflow adjustment module, the sampling airflow velocity of the vortex damper is stable in a range of 0.5-2 m / s. The vortex damper is internally provided with stainless steel spiral blades. In the sampling unit module, the anti-static PVC pipeline has an inner diameter of 6 mm. The sampling hole interval is 1.5 m. The hole diameter is 2 mm. In the fire extinguishing linkage module, the calculation method of the dynamic alarm threshold is: dynamic alarm threshold = reference value x airflow correction coefficient. In the fire extinguishing linkage module, the smoke detection response time of the fire alarm signal detection unit is less than 30 seconds, and the false alarm rate is less than 0.1% / year.

[0031] Through optimization of detection technology, airflow control and intelligent algorithm, the performance indicators of the air suction type smoke fire detector in the data center high-speed airflow environment are comprehensively improved. It has significant practical value and market prospect. Through the high-efficiency particle air filter, micron-level particulate matter is captured. The concentration is detected through the scattering effect of smoke particles on the LED.

[0032] The working principle of the utility model is: sampling unit module, detector module, airflow adjustment module and fire extinguishing linkage module,

[0033] The sampling unit module is internally provided with a data collector, a data processor and a central controller, the data collector and the data processor are electrically connected through wires, the data collector and the data processor are electrically connected with the central controller through wires, an antistatic PVC pipeline is adopted, wires are uniformly arranged on the top of the cabinet and under the overhead floor, and a plurality of sampling holes are arranged.

[0034] The detector module is internally provided with an LED scattering sensor, the detection sensitivity of the LED scattering sensor is adjustable in the range of 0.0001%-20% obs / m, the detection unit module comprises a sampling port, a filtering module, a detection unit module, a control unit module and a suction pump, the detector module is internally provided with a spiral flow guide structure tapered cavity tangential air inlet; a three-stage filtering system is adopted, namely, primary efficiency, HEPA and electrostatic adsorption, dust and impurities are filtered, the sensitivity of the laser scattering sensor is dynamically adjusted, and different airflow velocities are adapted. In the detector module, the detection unit module comprises a high-sensitivity LED scattering sensor and a multi-stage filtering system module. The spiral flow guide structure tapered cavity tangential air inlet injects fluid tangentially to form a cyclone, the spiral track increases the friction path, the viscous dissipation effect reduces the kinetic energy, the kinetic energy is converted into heat energy, the self-adaptive damping adjustment zero mechanical transmission component multi-stage energy dissipation high-temperature resistant design, during the working cycle, high-pressure airflow forms forced vortex through the tangential inlet, the spiral flow channel inner wall surface friction consumes energy, the core area generates a reverse pressure gradient, speed attenuation is realized through the turbulent mixing process, and stable output is realized through the rectification section.

[0035] The airflow adjustment module is internally provided with a vortex damper and a dynamic flow controller, the airflow adjustment module is provided with a proportioning valve, and the proportioning valve is built in the spiral flow guide structure; the proportioning valve: the spiral flow guide structure is used to reduce the airflow velocity, the dynamic flow controller is used for adjusting the sampling pump power in real time according to the airflow velocity. In the airflow adjustment module, the sampling airflow velocity of the vortex damper is stable in the range of 0.5-2 m / s, and the vortex damper is internally provided with a stainless steel spiral blade.

[0036] The fire extinguishing linkage module is internally provided with a control unit, a fire alarm signal detection unit, an FAS host and a linkage fire extinguishing device, the control unit is internally provided with a smoke identification algorithm, the control unit is internally provided with multi-protocol communication, the control unit is communicated and integrated into a data center BMS, and the FAS host is internally provided with a dynamic alarm threshold. The smoke identification algorithm based on machine learning distinguishes real fire alarms and interference signals, supports multi-protocol communication Modbus, BACnet and TCP / IP, and is convenient for integration into a data center BMS system. In the fire extinguishing linkage module, the dynamic alarm threshold is calculated in the following manner: dynamic alarm threshold = reference value x air flow correction coefficient. In the fire extinguishing linkage module, the smoke detection response time of the fire alarm signal detection unit is less than 30 seconds, and the false alarm rate is less than 0.1% / year.

[0037] The vortex damping and dynamic flow control technology are combined to solve the high-speed airflow problem, AI-driven interference filtering is supported, the false alarm rate is reduced by 80%, and the downtime loss of a data center caused by false alarms is reduced. Through optimization of detection technology, air flow control and intelligent algorithm, the performance index of the air-aspirating smoke fire detector in the high-speed airflow environment of the data center is comprehensively improved, and the air-aspirating smoke fire detector has remarkable practical value and market prospect. Through the high-efficiency particle air filter, micron-level particulate matters are captured, and the concentration is detected through the scattering effect of smoke particles on the LED.

[0038] The above describes only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A high-speed airflow environment aspirating smoke detector for data centers, comprising a sampling unit module, a detector module, an airflow regulation module, and a fire suppression linkage module, characterized in that: Sampling Unit Module: The sampling unit module contains a data acquisition unit, a data processor, and a central controller. The data acquisition unit and the data processor are electrically connected by wires, and the data acquisition unit and the data processor are electrically connected to the central controller by wires. Anti-static PVC pipes are used, and the wiring is all located at the top of the cabinet and under the raised floor. Several sampling holes are provided. Detector module: The detector module is equipped with an LED scattering sensor, and the detection sensitivity of the LED scattering sensor is adjustable in the range of 0.0001%-20%obs / m. The detection unit module includes a sampling port, a filter module, a detection unit module, a control unit module, and an air pump. The detector module is equipped with a spiral guide structure tapered cavity tangential air inlet. Airflow regulation module: The airflow regulation module is equipped with a vortex damper and a dynamic flow controller. The airflow regulation module is equipped with a proportional regulating valve, which is built into the spiral guide structure. Fire extinguishing linkage module: The fire extinguishing linkage module is equipped with a control unit, a fire alarm signal detection unit, a FAS host and linkage fire extinguishing equipment. The control unit has a built-in smoke recognition algorithm and multi-protocol communication. The control unit communication is integrated into a data center BMS. The FAS host has dynamic alarm thresholds.

2. The data center high-speed airflow environment aspirating smoke detector according to claim 1, characterized in that, The detector module includes a high-sensitivity LED scattering sensor and a multi-stage filtering system module.

3. The data center high-speed airflow environment aspirating smoke detector according to claim 1, characterized in that, In the airflow regulation module, the sampling airflow velocity of the eddy current damper is stable in the range of 0.5-2m / s, and the eddy current damper has built-in stainless steel spiral blades.

4. The data center high-speed airflow environment aspirating smoke detector according to claim 1, characterized in that, In the sampling unit module, the inner diameter of the antistatic PVC pipe can be selected as 6mm, the sampling hole spacing can be selected as 1.5m, and the hole diameter can be selected as 2mm.

5. A data center high-speed airflow environment aspirating smoke detector according to claim 1, characterized in that, In the fire extinguishing linkage module, the dynamic alarm threshold is calculated as follows: Dynamic alarm threshold = baseline value × airflow correction coefficient.

6. A data center high-speed airflow environment aspirating smoke detector according to claim 1, characterized in that, In the fire extinguishing linkage module, the smoke detection response time of the fire alarm signal detection unit is less than 30 seconds, and the false alarm rate is less than 0.1% / year.

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