CN112050339A - Smoke exhaust system for fire engineering - Google Patents
Smoke exhaust system for fire engineering Download PDFInfo
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- CN112050339A CN112050339A CN202010971957.6A CN202010971957A CN112050339A CN 112050339 A CN112050339 A CN 112050339A CN 202010971957 A CN202010971957 A CN 202010971957A CN 112050339 A CN112050339 A CN 112050339A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/005—Delivery of fire-extinguishing material using nozzles
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/33—Responding to malfunctions or emergencies to fire, excessive heat or smoke
- F24F11/34—Responding to malfunctions or emergencies to fire, excessive heat or smoke by opening air passages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention relates to a smoke exhaust system for fire engineering, which comprises a smoke detection unit, a temperature detection unit, a smoke exhaust unit, a spraying unit, an image acquisition unit and a central control unit. According to the invention, the house is divided into a plurality of detection sites by arranging a plurality of smoke detectors, smoke exhaust pipelines of temperature detectors and sprayers, different areas in the house can be independently protected by independently detecting each site, and the site is independently treated when open fire occurs at a certain site, meanwhile, the central control unit can flexibly adjust the rotating speed of the exhaust fan and the water spraying amount of the sprayers according to the smoke concentration and the temperature in the site where the open fire occurs so as to respectively exhaust smoke and extinguish fire, and the peripheral exhaust fan and the sprayers are started to assist in exhausting smoke and extinguishing fire when the fire is too high, so that the targeted exhaust smoke and extinguishment of different fire are completed, and the fire fighting efficiency of the system is improved.
Description
Technical Field
The invention relates to the technical field of fire protection and smoke exhaust, in particular to a smoke exhaust system for fire engineering.
Background
Along with the increasing shortage of land resources, people are gradually moved into high-rise buildings for residence, loss caused by fire disasters is increased, and the fire disasters have the greatest threat to the lives of people, namely, smoke generated by combustion is not combustion flame, so that fire fighting and smoke exhaust are particularly important; at present, the smoke exhausting effect of the smoke exhausting and preventing system installed in a common building is very limited, especially the smoke exhausting effect is poor when a local fire in the building is in a fire disaster, and the common smoke exhausting system is not provided with an automatic fire extinguishing device, so that the generation of smoke cannot be reduced from the source.
The smoke prevention and exhaust intelligent control system generally comprises a smoke prevention and exhaust intelligent controller, various controlled devices and a sensor, wherein the sensor is used for detecting parameters in the environment, and the controlled devices perform fire control measures such as fire prevention, smoke exhaust and the like in an automatic or manual mode, so that the fire loss and casualties can be reduced to the maximum extent when a fire disaster is reached. The smoke prevention and exhaust intelligent controller receives the fire alarm instruction of the upper level, sends an instruction to the lower level controlled equipment and is linked with the related equipment to operate, feeds back the action state and the physical position of the equipment, and can detect various parameters of the controlled equipment in real time to judge whether the controlled equipment operates normally.
However, at present prevent smoke exhaust system does not have direct information interaction from top to bottom, simultaneously, because current equipment degree of automation is low, lack the overall control and lead to information feedback ability poor, consequently, prevent smoke exhaust system among the prior art also all adopt unified standard of putting out a fire when the condition to the difference, when the local naked light that appears in the house, prevent that all equipment in the smoke exhaust system can control the house and move in order to carry out unified smoke exhaust and put out a fire with unified parameter, thereby can appear that the resource of putting out a fire too much leads to the wasting of resources or the resource of putting out a fire too little, can't accomplish the condition emergence that the fire suppression leads to can't be eliminated, fire-fighting efficiency is low.
Disclosure of Invention
Therefore, the invention provides a smoke exhaust system for fire engineering, which is used for solving the problem of low fire fighting efficiency caused by the fact that the operation parameters of components in the system cannot be adjusted according to different fire behaviors in the prior art.
In order to achieve the above object, the present invention provides a smoke exhaust system for fire fighting engineering, comprising:
the smoke detection unit comprises a plurality of smoke detectors arranged at specified positions of the ceiling of the room and is used for detecting the smoke concentration of corresponding positions in the room;
the temperature detection unit comprises a plurality of temperature detectors arranged in the room and used for detecting the temperature of a specified point in the room;
the smoke exhaust unit comprises a plurality of smoke exhaust pipelines arranged at the appointed position of the ceiling of the room, and each smoke exhaust pipeline is provided with an exhaust fan group;
the spraying unit comprises a plurality of sprayers arranged at specified positions of the ceiling of the room and is used for spraying water into the room when the central control unit judges that fire happens in the room;
the image acquisition unit is arranged at a specified position of the ceiling of the room and is used for acquiring environmental information in the room when the central control unit cannot judge the specific situation in the room;
the central control unit is respectively connected with each smoke detector, each temperature detector, each sprayer, the image acquisition unit and each exhaust fan set and is used for monitoring the inside of a room, and a preset smoke concentration matrix, a preset temperature matrix, a preset smoke exhaust matrix and a preset water spray matrix are prestored in the central control unit; when the system runs, the central control unit judges smoke generating sites in a room according to whether the detection result of each smoke detector exceeds a corresponding preset value or not, controls the exhaust fan sets of the corresponding sites to rotate at a specified rotating speed for smoke discharge and controls the exhaust fan sets around the exhaust fan sets of the sites to rotate at a corresponding rotating speed for auxiliary smoke discharge; the central control unit also can judge the fire site in the room according to whether the detection value of each temperature detector exceeds the corresponding preset value, control the sprayers at the corresponding sites to spray water with the specified water spraying amount so as to extinguish the fire and control the sprayers at the periphery of the sprayers to spray water with the corresponding water spraying amount so as to assist in extinguishing the fire.
Further, the number of the smoke detectors is the same as that of the temperature detectors, and the smoke detectors and the temperature detectors with the same number are used for respectively monitoring the smoke concentration and the temperature of the same position in the room.
Furthermore, the number of the exhaust pipelines and the number of the sprayers are the same as the number of the smoke detectors, the smoke detectors and the sprayers with the same number are arranged at air inlets of the corresponding exhaust pipelines, when the smoke detectors judge that the smoke concentration of monitoring sites of the smoke detectors is higher than a preset value, the central control unit controls the exhaust fan set in the exhaust pipeline where the smoke detectors are located to rotate at a specified rotating speed so as to discharge smoke to the sites, when the temperature detectors with the same number as the smoke detectors judge that the temperature of the sites is higher than the preset value, the central control unit controls the sprayers corresponding to the smoke detectors and located at the air inlets of the same exhaust pipelines to spray water so as to extinguish fire and controls the sprayers around the sprayers to spray water so as to assist in extinguishing fire.
Furthermore, a preset smoke concentration matrix group R0 and a preset rotating speed matrix group W0 are arranged in the central control unit; for the set of preset smoke concentration matrices R0, R0(R1, R2, R3.. Rn), wherein R1 is the first smoke detector preset concentration matrix, R2 is the second smoke detector preset concentration matrix, R3 is the third smoke detector preset concentration matrix, and Rn is the nth smoke detector preset concentration matrix; for the preset rotation speed matrix group W0, W0(W1, W2, W3,. Wn), wherein W1 is a first exhaust fan group rotation speed matrix, W2 is a second exhaust fan group rotation speed matrix, W3 is a third exhaust fan group rotation speed matrix, and Wn is an nth exhaust fan group rotation speed matrix;
when the first smoke detector detects the smoke concentration of a first site where the first smoke detector is located, the central control unit selects an R1 matrix from an R0 matrix group as a smoke concentration detection standard of the site, selects a W1 matrix from a W0 matrix group and uses parameters in the W1 matrix as a regulation standard of a first row fan group in the site;
when the second smoke detector detects the smoke concentration of a second point where the second smoke detector is located, the central control unit selects an R2 matrix from an R0 matrix group as a smoke concentration detection standard of the point, selects a W2 matrix from a W0 matrix group and uses parameters in the W2 matrix as an adjusting standard of a second exhaust fan group in the point;
when the third smoke detector detects the smoke concentration of a third point where the third smoke detector is located, the central control unit selects an R3 matrix from an R0 matrix group as a smoke concentration detection standard of the point, selects a W3 matrix from a W0 matrix group and uses parameters in the W3 matrix as an adjusting standard of a third exhaust fan group in the point;
when the nth smoke detector detects the smoke concentration of the nth site, the central control unit selects an Rn matrix from an R0 matrix group as the smoke concentration detection standard of the site, selects a Wn matrix from a W0 matrix group and uses parameters in the Wn matrix as the regulation standard of an nth exhaust fan group in the site.
Further, for the ith smoke detector, a preset concentration matrix Ri, i is 1, 2, 3,. n, Ri (Ria, Rib, Ric, Rid), where Ria is the first preset concentration for the ith smoke detector, Rib is the second preset concentration for the ith smoke detector, Rib is the third preset concentration for the ith smoke detector, and Rid is the fourth preset concentration for the ith smoke detector, and each preset concentration gradually increases;
for the rotation speed matrix Wi, Wi (Wia, Wib, Wic, Wid, Wi0) of the ith exhaust fan group, wherein Wia is the first preset rotation speed of the ith exhaust fan group, Wib is the second preset rotation speed of the ith exhaust fan group, Wic is the third preset rotation speed of the ith exhaust fan group, Wid is the first preset rotation speed of the ith exhaust fan group, and Wi0 is the preset auxiliary rotation speed of the ith exhaust fan, and for Wia, Wib, Wic and Wid, the preset rotation speed values are gradually increased in sequence, and for the preset auxiliary rotation speed Wi0, Wic is less than Wi0 and is less than Wid;
when the ith smoke detector monitors the smoke concentration of the ith site, the ith smoke detector can detect the smoke concentration Ri of the ith site in real time, when the ith smoke detector detects the Ri value, the smoke detector conveys Ri to the central control unit, and the central control unit compares Ri with each parameter in an Ri matrix:
when ri is less than Ria, the central control unit does not start the ith exhaust fan set;
when ri is more than or equal to Ria and is less than Rib, the central control unit starts the ith exhaust fan set and adjusts the rotating speed of each exhaust fan in the exhaust fan set to Wia;
when Rib is more than or equal to ri and less than Ric, the central control unit starts the ith exhaust fan set and adjusts the rotating speed of each exhaust fan in the exhaust fan set to Wib;
when the Ric is less than or equal to ri and less than Rid, the central control unit starts the ith exhaust fan set and adjusts the rotating speed of each exhaust fan in the exhaust fan set to Wic;
when ri is larger than or equal to Rid, the central control unit starts the ith exhaust fan set, adjusts the rotating speed of each exhaust fan in the exhaust fan set to Wid, adjusts the exhaust fans in the exhaust fan sets adjacent to the ith exhaust fan set to the corresponding rotating speed, and controls the ith sprayer to spray water at the specified water spraying amount according to the temperature value detected by the corresponding ith temperature detector in the ith point;
when the rotation speed of each exhaust fan in the jth exhaust fan group in the jth site adjacent to the ith site is adjusted to Wjd by the central control module, j is 1, 2, 3,. n, and j-i is +/-1, the central control module starts the ith exhaust fan group and adjusts the rotation speed of each exhaust fan in the exhaust fan group to Wi0 so that the ith exhaust fan group performs auxiliary exhaust.
Further, a preset temperature matrix group T0 and a preset water spraying quantity matrix group Q0 are further arranged in the central control unit; for the preset temperature matrix group T0, T0(T1, T2, T3,. Tn), where T1 is the 1 st temperature detector preset temperature matrix, T2 is the 2 nd temperature detector preset temperature matrix, T3 is the 3 rd temperature detector preset temperature matrix, and Tn is the nth temperature detector preset temperature matrix; for the preset water spray amount matrix group Q0, Q0(Q1, Q2, Q3.. Qn), wherein Q1 is the first sprinkler preset water spray amount matrix, Q2 is the second sprinkler preset water spray amount matrix, Q3 is the third sprinkler preset water spray amount matrix, and Qn is the nth sprinkler preset water spray amount matrix;
when the central control unit controls the first temperature detector to detect the temperature of a first site where the first temperature detector is located, the central control unit selects a T1 matrix from a T0 matrix group as a temperature detection standard of the site, selects a Q1 matrix from a Q0 matrix group and uses parameters in the Q1 matrix as a regulation standard of a first sprayer in the site;
when the central control unit controls the second temperature detector to detect the temperature of a second site where the second temperature detector is located, the central control unit selects a T2 matrix from a T0 matrix group as a temperature detection standard of the site, selects a Q2 matrix from a Q0 matrix group and uses parameters in the Q2 matrix as a regulation standard of a second sprayer in the site;
when the central control unit controls the third temperature detector to detect the temperature of a third site where the third temperature detector is located, the central control unit selects a T3 matrix from a T0 matrix group as a temperature detection standard of the site, selects a Q3 matrix from a Q0 matrix group and uses parameters in the Q3 matrix as a regulation standard of a third sprayer in the site;
when the central control unit controls the nth temperature detector to detect the temperature of the nth position, the central control unit selects a Tn matrix from a T0 matrix group as the temperature detection standard of the position, selects a Qn matrix from a Q0 matrix group and uses parameters in the Qn matrix as the regulation standard of the nth sprayer in the position.
Further, for the ith preset temperature matrix Ti, i is 1, 2, 3,. n, Ti (Tia, Tib, Tic, Tid), where Tia is a first preset temperature of the ith temperature detector, Tib is a second preset temperature of the ith temperature detector, Tic is a third preset temperature of the ith temperature detector, Tid is a fourth preset temperature of the ith temperature detector, and each preset temperature value gradually increases in sequence;
the method comprises the steps that a water spraying quantity matrix Qi, Qi (Qia, Qib, Qic, Qid and Qi0) is preset for the ith sprayer, wherein Qia is a first preset water spraying quantity of the ith sprayer, Qib is a second preset water spraying quantity of the ith sprayer, Qic is a third preset water spraying quantity of the ith sprayer, Qid is a fourth preset water spraying quantity of the ith sprayer, Qi0 is a preset auxiliary water spraying quantity of the ith sprayer, for Qia, Qib, Qic and Qid, the preset water spraying quantities are gradually increased in sequence, and for a preset auxiliary water spraying quantity Qi0, Qic < Qi0 < Qid;
when the central control unit controls the ith temperature detector to detect the temperature of the ith position, the ith temperature detector can detect the temperature ti of the ith position in real time, when the ith temperature detector detects the value of ti, the temperature detector transmits ti to the central control unit, and the central control unit compares ti with each parameter in a ti matrix:
when ti is less than Tia, the central control unit judges that the ith point is not on fire and does not start the ith sprayer;
when the Tia is less than or equal to ti and less than the Tib, the central control unit judges that the ith point has open fire and the intensity of the fire is weak, the central control unit starts the ith sprayer and sets the water spraying amount of the sprayer to be Qia;
when Tib is more than or equal to and more than ti is more than Tic, the central control unit judges that the ith point has open fire and the intensity of the fire is low, the central control unit starts the ith sprayer and sets the water spraying amount of the sprayer to Qib;
when Tic is more than or equal to ti and less than Tid, the central control unit judges that the ith point has open fire and the intensity of the fire is in the middle, the central control unit starts the ith sprayer and sets the water spraying amount of the sprayer to Qic;
when Ti is larger than or equal to tid, the central control unit judges that the ith point has open fire and the intensity of fire is high, the central control unit starts the ith sprayer, sets the water spraying amount of the sprayer to Qid and adjusts the water spraying amount of the sprayer adjacent to the ith sprayer to a specified value so as to perform auxiliary fire extinguishing;
when the central control module adjusts the water spraying amount of a j-th sprayer in a j-th site adjacent to the i-th site to Qjd, j is 1, 2, 3,. n, and j-i is +/-1, the central control module starts the i-th sprayer and adjusts the water spraying amount of the i-th sprayer to Qi0 so that the i-th sprayer performs auxiliary fire extinguishing.
Further, a preset feature point matrix S0 and a preset feature quantity D are arranged in the central control unit; for the preset feature point matrix S0, S0(S1, S2, S3,. Sm), wherein S1 is a first preset feature, S2 is a second preset feature, S3 is a third preset feature, and Sm is an mth preset feature;
when the ith smoke detector detects that the smoke concentration ri in the ith site is less than Ria and the ith temperature detector detects that the temperature ti in the ith point is more than or equal to Tia, the central control unit cannot judge the specific situation in the house, the central control unit starts the image acquisition unit at the moment, the image acquisition unit acquires the image information of the ith point and transmits the image information to the central control unit, and the central control unit analyzes the image information to judge whether the ith point is on fire or not;
when the central control unit analyzes the image information, the central control unit establishes an image information feature quantity A, after the establishment is completed, the central control unit sequentially identifies features from the image information and sequentially matches the features with preset features in an S0 matrix, after the retrieval of the central control unit is completed, the quantity M of the features which can be matched with the features of each matrix in the S0 matrix in the image information is counted, at the moment, the central control unit marks A as M and compares A with M:
when A is less than M, the central control unit judges that the ith point is not on fire;
and when A is larger than or equal to M, the central control unit judges that the ith point is on fire, controls the ith temperature detector to detect the actual temperature of the ith point and adjusts the water spraying amount of the ith sprayer according to the detection result.
Furthermore, a filter screen is arranged in each smoke exhaust pipeline for filtering fine particles in smoke.
Furthermore, the system is also provided with an alarm unit which is arranged on the ceiling of the room and connected with the central control unit, and when the central control unit judges that any point in the room is on fire, the central control unit controls the alarm unit to start so as to give out an alarm.
Compared with the prior art, the smoke exhaust system has the advantages that the house is divided into a plurality of detection sites by arranging the smoke detectors, the smoke exhaust pipeline of the temperature detector and the sprayers, different areas in the house can be protected independently by detecting each site independently, and when open fire occurs at a certain site, the site is treated independently.
Further, the number of the smoke detectors is the same as that of the temperature detectors, and the smoke detectors and the temperature detectors with the same number are used for respectively monitoring the smoke concentration and the temperature of the same position in the room. The smoke detector and the temperature detector which correspond to each other are arranged at the same point position, so that independent detection of each point position can be completed, and the fire fighting efficiency of the system is further improved.
Furthermore, the number of the exhaust pipelines and the number of the sprayers are the same as the number of the smoke detectors, the smoke detectors and the sprayers with the same number are arranged at air inlets of the corresponding exhaust pipelines, when the smoke detectors judge that the smoke concentration of monitoring sites of the smoke detectors is higher than a preset value, the central control unit controls the exhaust fan group in the exhaust pipeline where the smoke detectors are located to rotate at a specified rotating speed so as to discharge smoke at the sites, when the temperature detectors with the same number as the smoke detectors judge that the temperature of the sites is higher than the preset value, the central control unit controls the sprayers corresponding to the air inlets of the same exhaust pipelines as the smoke detectors to spray water so as to extinguish fire and controls the sprayers around the sprayers to spray water so as to assist in extinguishing fire; through set up corresponding exhaust pipe and spray thrower at single position, can make the system accomplishes the pertinence to single position and discharges fume and put out a fire, when having reduced fire control resource, has further improved the fire control efficiency of system.
Furthermore, a preset smoke concentration matrix group R0(R1, R2, R3.. Rn) and a preset rotating speed matrix group W0(W1, W2, W3.. Wn) are arranged in the central control unit, and when the nth smoke detector detects the smoke concentration of the nth site, the central control unit selects an Rn matrix from the R0 matrix group as the smoke concentration detection standard of the site, selects a Wn matrix from the W0 matrix group and uses parameters in the Wn matrix as the regulation standard of the nth exhaust fan group in the site; different detection standards are set for the smoke detectors at different point positions, different operation standards are set for the exhaust fans at different point positions, and detection deviation caused by the geographical position problem of different point positions can be effectively eliminated, so that the system can make accurate judgment and treatment aiming at different point positions, and the fire fighting efficiency of the system is further improved.
Furthermore, a concentration matrix Ri, Ri (Ria, Rib, Ric, Rid) is preset for the ith smoke detector, a rotation speed matrix Wi, Wi (Wia, Wib, Wic, Wid, Wi0) for the ith exhaust fan group is used, when the ith smoke detector monitors the smoke concentration of the ith site, the ith smoke detector can detect the smoke concentration Ri of the ith site in real time, when the ith smoke detector detects the Ri value, the smoke detector conveys the Ri to the central control unit, the central control unit compares the Ri with each parameter in the Ri matrix and adjusts the rotation speed of the ith exhaust fan according to the comparison result, and the system can finish the targeted smoke exhaust of the single site by selecting the corresponding rotation speed value according to the detection value of the smoke detector, so that the fire fighting efficiency of the system is further improved.
Furthermore, a preset temperature matrix set T0(T1, T2, T3.. Tn) and a preset water spraying amount matrix set Q0(Q1, Q2, Q3.. Qn) are also arranged in the central control unit, and when the central control unit controls the nth temperature detector to detect the temperature of the nth site, the central control unit selects a Tn matrix from the T0 matrix set as the temperature detection standard of the site, selects a Qn matrix from the Q0 matrix set and uses parameters in the Qn matrix as the adjustment standard of the nth sprayer in the site; different detection standards are set for the temperature detectors at different point positions, different operation standards are set for the sprayers at different point positions, and detection deviation caused by the geographical position problem of different point positions can be effectively eliminated, so that the system can make accurate judgment and processing aiming at different point positions, and the fire fighting efficiency of the system is further improved.
Further, for the ith preset temperature matrix Ti, Ti (Tia, Tib, Tic, Tid), for the ith sprayer, preset water injection quantity matrix Qi, Qi (Qia, Qib, Qic, Qid, Qi0), when the central control unit controls the ith temperature detector to detect the temperature of the ith site, the ith temperature detector may detect the temperature Ti of the ith site in real time, when the ith temperature detector detects the Ti value, the temperature detector transmits Ti to the central control unit, the central control unit compares Ti with each parameter in the Ti matrix and adjusts the water injection quantity of the ith sprayer according to the comparison result, and by selecting the corresponding water injection quantity according to the detection value of the temperature detector, the system can complete the targeted fire extinguishing of a single point, thereby further improving the fire fighting efficiency of the system.
Further, still be equipped with the filter screen in the system, through using the filter screen, can effectively hold back the harmful gas in the flue gas to prevent that harmful gas from leaking outside the house, thereby further improved the fire control efficiency of system.
Furthermore, the system is also provided with an alarm unit which is arranged on the ceiling of the room and connected with the central control unit, when the central control unit judges that any point in the room is on fire, the central control unit controls the alarm unit to start so as to give out an alarm, and related personnel can be timely informed when the room is on fire by arranging the alarm unit, so that the fire point can be rapidly processed, and the fire fighting efficiency of the system is further improved.
Drawings
Fig. 1 is a schematic structural diagram of a smoke exhaust system for fire engineering according to the present invention;
fig. 2 is a block diagram of a smoke exhaust system for fire fighting engineering according to the present invention.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described below with reference to examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Fig. 1 and fig. 2 are schematic structural diagrams and block diagrams of a smoke exhaust system for fire engineering according to the present invention. The invention relates to a smoke exhaust system for fire engineering, which comprises:
the smoke detection unit 1 comprises a plurality of smoke detectors 11 arranged at specified positions on the ceiling of a room and used for detecting the smoke concentration at corresponding positions in the room.
And a temperature detecting unit 2 including a plurality of temperature detectors 21 disposed in the room to detect the temperature of a designated point in the room.
A smoke exhaust unit 3 including a plurality of smoke exhaust ducts 31 provided at predetermined positions on a ceiling of a room, each smoke exhaust duct 31 being provided with a fan group 32; a filter screen 33 is further disposed in each smoke exhaust duct 31 for filtering out fine particles in the smoke.
And a spray unit 4 including a plurality of sprayers 41 provided at predetermined positions on the ceiling of the room to spray water into the room when the central control unit 6 determines that a fire is generated in the room.
And the image acquisition unit 5 is arranged at a specified position of the ceiling of the room and is used for acquiring environmental information in the room when the central control unit 6 cannot judge the specific situation in the house.
The central control unit 6 is respectively connected with each smoke detector 11, each temperature detector 21, each sprayer 41, the image acquisition unit 5 and each exhaust fan group 32, and is used for monitoring the interior of a room, and a preset smoke concentration matrix, a preset temperature matrix, a preset smoke exhaust matrix and a preset water spray matrix are prestored in the central control unit 6; when the system is in operation, the central control unit 6 determines smoke-generating sites in the room according to whether the detection result of each smoke detector 11 exceeds a corresponding preset value, controls the exhaust fan set 32 of the corresponding site to rotate at a specified rotation speed for smoke discharge, and controls the exhaust fan set 32 around the exhaust fan set 32 of the site to rotate at a corresponding rotation speed for auxiliary smoke discharge; the central control unit 6 also determines the fire site in the room according to whether the detected value of each temperature detector 21 exceeds the corresponding preset value, controls the sprinklers 41 at the corresponding site to spray water with a specified amount of sprayed water to extinguish the fire, and controls the sprinklers 41 around the sprinklers 41 to spray water with a corresponding amount of sprayed water to assist in extinguishing the fire.
Specifically, the number of the smoke detectors 11 is the same as that of the temperature detectors 21, and the smoke detectors 11 and the temperature detectors 21 with the same number are used for respectively monitoring the smoke concentration and the temperature at the same position in the room.
Specifically, the number of the exhaust ducts and the number of the sprinklers 41 are the same as the number of the smoke detectors 11, the smoke detectors 11 and the sprinklers 41 with the same number are both arranged at the air inlets of the corresponding exhaust ducts, when the smoke detectors 11 determine that the smoke concentration at the monitoring points is higher than a preset value, the central control unit 6 controls the exhaust fan set 32 in the exhaust duct where the smoke detectors 11 are located to rotate at a specified rotation speed to discharge smoke at the monitoring points, and when the temperature detectors 21 with the same number as the smoke detectors 11 determine that the temperature at the monitoring points is higher than the preset value, the central control unit 6 controls the sprinklers 41 corresponding to the exhaust ducts where the smoke detectors 11 are located to spray water to extinguish fire and controls the sprinklers 41 around the sprinklers 41 to spray water to assist in extinguishing fire.
Referring to fig. 1 and 2, the system of the present invention further includes an alarm unit 7, the alarm unit 7 is disposed on the ceiling of the room and connected to the central control unit 6, and when the central control unit 6 determines that a fire is generated at any point in the room, the central control unit 6 controls the alarm unit 7 to be activated to give an alarm.
With continued reference to fig. 1 and fig. 2, a preset smoke concentration matrix group R0 and a preset rotation speed matrix group W0 are disposed in the central control unit 6 according to the present invention; for the set of preset smoke concentration matrices R0, R0(R1, R2, R3.. Rn), wherein R1 is the first smoke detector 11 preset concentration matrix, R2 is the second smoke detector 11 preset concentration matrix, R3 is the third smoke detector 11 preset concentration matrix, and Rn is the nth smoke detector 11 preset concentration matrix; for the preset rotation speed matrix group W0, W0(W1, W2, W3,. Wn), where W1 is the rotation speed matrix of the first exhaust fan group 32, W2 is the rotation speed matrix of the second exhaust fan group 32, W3 is the rotation speed matrix of the third exhaust fan group 32, and Wn is the rotation speed matrix of the nth exhaust fan group 32.
When the first smoke detector 11 detects the smoke concentration of the first site where the first smoke detector is located, the central control unit 6 selects an R1 matrix from an R0 matrix group as the smoke concentration detection standard of the site, selects a W1 matrix from a W0 matrix group, and uses parameters in the W1 matrix as the adjustment standard of the first row fan group 32 in the site.
When the second smoke detector 11 detects the smoke concentration at the second site, the central control unit 6 selects an R2 matrix from an R0 matrix set as the smoke concentration detection standard of the site, selects a W2 matrix from a W0 matrix set, and uses parameters in the W2 matrix as the adjustment standard of the second exhaust fan set 32 at the site.
When the third smoke detector 11 detects the smoke concentration at the third site, the central control unit 6 selects an R3 matrix from an R0 matrix set as the smoke concentration detection standard of the site, selects a W3 matrix from a W0 matrix set, and uses parameters in the W3 matrix as the adjustment standard of the third exhaust fan set 32 at the site.
When the nth smoke detector 11 detects the smoke concentration of the nth site where the nth smoke detector is located, the central control unit 6 selects an Rn matrix from the R0 matrix set as the smoke concentration detection standard of the site, selects a Wn matrix from the W0 matrix set, and uses parameters in the Wn matrix as the adjustment standard of the nth exhaust fan set 32 in the site.
Specifically, a preset concentration matrix Ri, i is 1, 2, 3,. n, Ri (Ria, Rib, Ric, Rid) is provided for the ith smoke detector 11, where Ria is the first preset concentration of the ith smoke detector 11, Rib is the second preset concentration of the ith smoke detector 11, Rib is the third preset concentration of the ith smoke detector 11, and Rid is the fourth preset concentration of the ith smoke detector 11, and each preset concentration gradually increases.
For the rotation speed matrix Wi, Wi (Wia, Wib, Wic, Wid, Wi0) of the ith exhaust fan group 32, wherein Wia is a first preset rotation speed of the ith exhaust fan group 32, Wib is a second preset rotation speed of the ith exhaust fan group 32, Wic is a third preset rotation speed of the ith exhaust fan group 32, Wid is a first preset rotation speed of the ith exhaust fan group 32, and Wi0 is a preset auxiliary rotation speed of the ith exhaust fan, and for Wia, Wib, Wic and Wid, the preset rotation speed values are gradually increased in sequence, and for the preset auxiliary rotation speed Wi0, Wic is less than Wi0 and is less than Wid.
When the ith smoke detector 11 monitors the smoke concentration at the ith site, the ith smoke detector 11 detects the smoke concentration Ri at the ith site in real time, when the ith smoke detector 11 detects the Ri value, the smoke detector 11 transmits Ri to the central control unit 6, and the central control unit 6 compares Ri with each parameter in the Ri matrix:
when ri < Ria, the central control unit 6 does not activate the ith exhaust fan set 32.
When the Ria is more than or equal to ri and less than Rib, the central control unit 6 starts the ith exhaust fan set 32 and adjusts the rotation speed of each exhaust fan in the exhaust fan set 32 to Wia.
When Rib is more than or equal to ri and less than Ric, the central control unit 6 starts the ith exhaust fan set 32 and adjusts the rotation speed of each exhaust fan in the exhaust fan set 32 to Wib.
When Ric is less than or equal to ri and less than Rid, the central control unit 6 starts the ith exhaust fan set 32 and adjusts the rotation speed of each exhaust fan in the exhaust fan set 32 to Wic.
When ri is greater than or equal to Rid, the central control unit 6 starts the ith exhaust fan set 32, adjusts the rotation speed of each exhaust fan in the exhaust fan set 32 to Wid, adjusts the exhaust fans in the exhaust fan sets 32 adjacent to the ith exhaust fan set 32 to the corresponding rotation speed, and controls the ith sprayer 41 to spray water at the specified water spraying amount according to the temperature value detected in the ith point by the corresponding ith temperature detector 21.
When the rotation speed of each exhaust fan in the jth exhaust fan group 32 in the jth site adjacent to the ith site is adjusted to Wjd by the central control module, j is 1, 2, 3,. n, and j-i is ± 1, the central control module starts the ith exhaust fan group 32 and adjusts the rotation speed of each exhaust fan in the ith exhaust fan group 32 to Wi0, so that the ith exhaust fan group 32 performs auxiliary smoke exhaust.
Specifically, the central control unit 6 is further provided with a preset temperature matrix group T0 and a preset water spraying quantity matrix group Q0; for the preset temperature matrix set T0, T0(T1, T2, T3,. Tn), where T1 is the 1 st temperature detector 21 preset temperature matrix, T2 is the 2 nd temperature detector 21 preset temperature matrix, T3 is the 3 rd temperature detector 21 preset temperature matrix, and Tn is the nth temperature detector 21 preset temperature matrix; for the set of preset water spray rate matrices Q0, Q0(Q1, Q2, Q3.. Qn), wherein Q1 is the preset water spray rate matrix for first sprayer 41, Q2 is the preset water spray rate matrix for second sprayer 41, Q3 is the preset water spray rate matrix for third sprayer 41, and Qn is the preset water spray rate matrix for nth sprayer 41.
When the central control unit 6 controls the first temperature detector 21 to detect the temperature of the first site, the central control unit 6 selects a T1 matrix from a T0 matrix set as the temperature detection standard of the site, selects a Q1 matrix from a Q0 matrix set, and uses the parameters in the Q1 matrix as the adjustment standard of the first sprayer 41 in the site.
When the central control unit 6 controls the second temperature detector 21 to detect the temperature of the second site, the central control unit 6 selects a T2 matrix from a T0 matrix set as the temperature detection standard of the site, selects a Q2 matrix from a Q0 matrix set, and uses the parameters in the Q2 matrix as the adjustment standard of the second sprayer 41 in the site.
When the central control unit 6 controls the third temperature detector 21 to detect the temperature of the third site, the central control unit 6 selects a T3 matrix from a T0 matrix set as the temperature detection standard of the site, selects a Q3 matrix from a Q0 matrix set, and uses the parameters in the Q3 matrix as the adjustment standard of the third sprayer 41 in the site.
When the central control unit 6 controls the nth temperature detector 21 to detect the temperature of the nth point, the central control unit 6 selects a Tn matrix from a T0 matrix set as the temperature detection standard of the nth point, selects a Qn matrix from a Q0 matrix set, and uses parameters in the Qn matrix as the adjustment standard of the nth sprayer 41 in the nth point.
Specifically, for the ith preset temperature matrix Ti, i is 1, 2, 3,. n, Ti (Tia, Tib, Tic, Tid), where Tia is a first preset temperature of the ith temperature detector 21, Tib is a second preset temperature of the ith temperature detector 21, Tic is a third preset temperature of the ith temperature detector 21, and Tid is a fourth preset temperature of the ith temperature detector 21, and the preset temperature values are gradually increased in sequence.
The water spray amount matrix Qi, Qi (Qia, Qib, Qic, Qid, Qi0) is preset for the ith sprayer 41, where Qia is the first preset water spray amount of the ith sprayer 41, Qib is the second preset water spray amount of the ith sprayer 41, Qic is the third preset water spray amount of the ith sprayer 41, Qid is the fourth preset water spray amount of the ith sprayer 41, and Qi0 is the preset auxiliary water spray amount of the ith sprayer 41, and for Qia, Qib, Qic and Qid, the preset water spray amounts gradually increase in sequence, and for the preset auxiliary water spray amount Qi0, Qic < Qi0 < Qid.
When the central control unit 6 controls the ith temperature detector 21 to detect the temperature of the ith position, the ith temperature detector 21 detects the temperature ti of the ith position in real time, when the ith temperature detector 21 detects the value of ti, the temperature detector 21 transmits ti to the central control unit 6, and the central control unit 6 compares ti with each parameter in the ti matrix:
when ti is less than Tia, the central control unit 6 judges that the ith point is not on fire, and does not start the ith sprayer 41;
when the Tia is less than or equal to ti and less than the Tib, the central control unit 6 judges that the ith point has open fire and the intensity of the fire is weak, the central control unit 6 starts the ith sprayer 41 and sets the water spraying amount of the sprayer 41 as Qia.
When Tib is more than or equal to and less than ti and Tic, the central control unit 6 judges that the ith point has open fire and the intensity of the fire is low, the central control unit 6 starts the ith sprayer 41 and sets the water spraying amount of the sprayer 41 to Qib.
When Tic is more than or equal to ti and less than Tid, the central control unit 6 judges that the ith point has open fire and the intensity of the fire is in the middle, the central control unit 6 starts the ith sprayer 41 and sets the water spraying amount of the sprayer 41 to Qic.
When Ti is greater than or equal to tid, the central control unit 6 determines that there is an open fire at the ith site and the intensity of the fire is high, and the central control unit 6 starts the ith sprinkler 41, sets the water spray amount of the sprinkler 41 to Qid, and adjusts the water spray amount of the sprinkler 41 adjacent to the ith sprinkler 41 to a specified value to perform auxiliary fire extinguishing.
When the central control module adjusts the water spray amount of the jth sprayer 41 in the jth site adjacent to the ith site to Qjd, j is 1, 2, 3,. n, and j-i is ± 1, the central control module activates the ith sprayer 41 and adjusts the water spray amount of the ith sprayer 41 to Qi0 so that the ith sprayer 41 performs auxiliary fire extinguishing.
Specifically, the central control unit 6 of the present invention is provided with a preset feature point matrix S0 and a preset feature quantity D; for the preset feature point matrix S0, S0(S1, S2, S3,. Sm), S1 is the first preset feature, S2 is the second preset feature, S3 is the third preset feature, and Sm is the mth preset feature.
When the ith smoke detector 11 detects that the smoke concentration ri in the ith site is less than Ria and the ith temperature detector 21 detects that the temperature ti in the ith site is more than or equal to Tia, the central control unit 6 cannot judge the specific situation in the house, at this time, the central control unit 6 starts the image acquisition unit 5, the image acquisition unit 5 acquires the image information of the ith site and transmits the image information to the central control unit 6, and the central control unit 6 analyzes the image information to judge whether the ith site is on fire or not; .
When the central control unit 6 analyzes the image information, the central control unit 6 establishes an image information feature quantity a, after the establishment is completed, the central control unit 6 sequentially identifies features from the image information and sequentially matches the features with preset features in an S0 matrix, after the retrieval by the central control unit 6 is completed, the quantity M of the features which can be matched with the features of each matrix in the S0 matrix in the image information is counted, at this time, the central control unit 6 records that a is equal to M and compares a with M:
and when A is less than M, the central control unit 6 judges that the ith point is not on fire.
When A is larger than or equal to M, the central control unit 6 judges that the ith point is on fire, the central control unit 6 controls the ith temperature detector 21 to detect the actual temperature of the ith point and adjusts the water spraying amount of the ith sprayer 41 according to the detection result.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a fire engineering is with system of discharging fume which characterized in that includes:
the smoke detection unit comprises a plurality of smoke detectors arranged at specified positions of the ceiling of the room and is used for detecting the smoke concentration of corresponding positions in the room;
the temperature detection unit comprises a plurality of temperature detectors arranged in the room and used for detecting the temperature of a specified point in the room;
the smoke exhaust unit comprises a plurality of smoke exhaust pipelines arranged at the appointed position of the ceiling of the room, and each smoke exhaust pipeline is provided with an exhaust fan group;
the spraying unit comprises a plurality of sprayers arranged at specified positions of the ceiling of the room and is used for spraying water into the room when the central control unit judges that fire happens in the room;
the image acquisition unit is arranged at a specified position of the ceiling of the room and is used for acquiring environmental information in the room when the central control unit cannot judge the specific situation in the room;
the central control unit is respectively connected with each smoke detector, each temperature detector, each sprayer, the image acquisition unit and each exhaust fan set and is used for monitoring the inside of a room, and a preset smoke concentration matrix, a preset temperature matrix, a preset smoke exhaust matrix and a preset water spray matrix are prestored in the central control unit; when the system runs, the central control unit judges smoke generating sites in a room according to whether the detection result of each smoke detector exceeds a corresponding preset value or not, controls the exhaust fan sets of the corresponding sites to rotate at a specified rotating speed for smoke discharge and controls the exhaust fan sets around the exhaust fan sets of the sites to rotate at a corresponding rotating speed for auxiliary smoke discharge; the central control unit also can judge the fire site in the room according to whether the detection value of each temperature detector exceeds the corresponding preset value, control the sprayers at the corresponding sites to spray water with the specified water spraying amount so as to extinguish the fire and control the sprayers at the periphery of the sprayers to spray water with the corresponding water spraying amount so as to assist in extinguishing the fire.
2. A smoke evacuation system for fire fighting projects as claimed in claim 1 wherein the number of smoke detectors is the same as the number of temperature detectors, and the same numbered smoke detectors and temperature detectors are used to monitor smoke concentration and temperature at the same location in a room respectively.
3. The smoke exhaust system for the fire engineering as claimed in claim 2, wherein the number of the exhaust ducts and the number of the sprayers are the same as the number of the smoke detectors, the smoke detectors and the sprayers with the same number are arranged at the air inlets of the corresponding exhaust ducts, when the smoke detector judges that the smoke concentration of the monitoring site is higher than a preset value, the central control unit controls the exhaust fan set in the exhaust pipeline where the smoke detector is located to rotate at a specified rotating speed so as to exhaust smoke at the site, when the temperature detector with the same number as the smoke detector judges that the temperature of the site is higher than a preset value, the central control unit controls the corresponding sprayer which is positioned at the same air inlet of the exhaust pipeline as the smoke detector to spray water so as to extinguish a fire and controls the sprayers at the periphery of the sprayer to spray water so as to assist in extinguishing the fire.
4. The smoke exhaust system for the fire engineering as claimed in claim 3, wherein a preset smoke concentration matrix group R0 and a preset rotation speed matrix group W0 are arranged in the central control unit; for the set of preset smoke concentration matrices R0, R0(R1, R2, R3.. Rn), wherein R1 is the first smoke detector preset concentration matrix, R2 is the second smoke detector preset concentration matrix, R3 is the third smoke detector preset concentration matrix, and Rn is the nth smoke detector preset concentration matrix; for the preset rotation speed matrix group W0, W0(W1, W2, W3,. Wn), wherein W1 is a first exhaust fan group rotation speed matrix, W2 is a second exhaust fan group rotation speed matrix, W3 is a third exhaust fan group rotation speed matrix, and Wn is an nth exhaust fan group rotation speed matrix;
when the first smoke detector detects the smoke concentration of a first site where the first smoke detector is located, the central control unit selects an R1 matrix from an R0 matrix group as a smoke concentration detection standard of the site, selects a W1 matrix from a W0 matrix group and uses parameters in the W1 matrix as a regulation standard of a first row fan group in the site;
when the second smoke detector detects the smoke concentration of a second point where the second smoke detector is located, the central control unit selects an R2 matrix from an R0 matrix group as a smoke concentration detection standard of the point, selects a W2 matrix from a W0 matrix group and uses parameters in the W2 matrix as an adjusting standard of a second exhaust fan group in the point;
when the third smoke detector detects the smoke concentration of a third point where the third smoke detector is located, the central control unit selects an R3 matrix from an R0 matrix group as a smoke concentration detection standard of the point, selects a W3 matrix from a W0 matrix group and uses parameters in the W3 matrix as an adjusting standard of a third exhaust fan group in the point;
when the nth smoke detector detects the smoke concentration of the nth site, the central control unit selects an Rn matrix from an R0 matrix group as the smoke concentration detection standard of the site, selects a Wn matrix from a W0 matrix group and uses parameters in the Wn matrix as the regulation standard of an nth exhaust fan group in the site.
5. The smoke evacuation system for fire fighting project according to claim 4, wherein the predetermined concentration matrix Ri for the ith smoke detector, i is 1, 2, 3,. n, Ri (Ria, Rib, Ric, Rid), wherein Ria is the first predetermined concentration for the ith smoke detector, Rib is the second predetermined concentration for the ith smoke detector, Ric is the third predetermined concentration for the ith smoke detector, and Rid is the fourth predetermined concentration for the ith smoke detector, and each predetermined concentration is gradually increased;
for the rotation speed matrix Wi, Wi (Wia, Wib, Wic, Wid, Wi0) of the ith exhaust fan group, wherein Wia is the first preset rotation speed of the ith exhaust fan group, Wib is the second preset rotation speed of the ith exhaust fan group, Wic is the third preset rotation speed of the ith exhaust fan group, Wid is the first preset rotation speed of the ith exhaust fan group, and Wi0 is the preset auxiliary rotation speed of the ith exhaust fan, and for Wia, Wib, Wic and Wid, the preset rotation speed values are gradually increased in sequence, and for the preset auxiliary rotation speed Wi0, Wic is less than Wi0 and is less than Wid;
when the ith smoke detector monitors the smoke concentration of the ith site, the ith smoke detector can detect the smoke concentration Ri of the ith site in real time, when the ith smoke detector detects the Ri value, the smoke detector conveys Ri to the central control unit, and the central control unit compares Ri with each parameter in an Ri matrix:
when ri is less than Ria, the central control unit does not start the ith exhaust fan set;
when ri is more than or equal to Ria and is less than Rib, the central control unit starts the ith exhaust fan set and adjusts the rotating speed of each exhaust fan in the exhaust fan set to Wia;
when Rib is more than or equal to ri and less than Ric, the central control unit starts the ith exhaust fan set and adjusts the rotating speed of each exhaust fan in the exhaust fan set to Wib;
when the Ric is less than or equal to ri and less than Rid, the central control unit starts the ith exhaust fan set and adjusts the rotating speed of each exhaust fan in the exhaust fan set to Wic;
when ri is larger than or equal to Rid, the central control unit starts the ith exhaust fan set, adjusts the rotating speed of each exhaust fan in the exhaust fan set to Wid, adjusts the exhaust fans in the exhaust fan sets adjacent to the ith exhaust fan set to the corresponding rotating speed, and controls the ith sprayer to spray water at the specified water spraying amount according to the temperature value detected by the corresponding ith temperature detector in the ith point;
when the rotation speed of each exhaust fan in the jth exhaust fan group in the jth site adjacent to the ith site is adjusted to Wjd by the central control module, j is 1, 2, 3,. n, and j-i is +/-1, the central control module starts the ith exhaust fan group and adjusts the rotation speed of each exhaust fan in the exhaust fan group to Wi0 so that the ith exhaust fan group performs auxiliary exhaust.
6. The smoke exhaust system for the fire engineering as claimed in claim 5, wherein a preset temperature matrix group T0 and a preset water spraying amount matrix group Q0 are further arranged in the central control unit; for the preset temperature matrix group T0, T0(T1, T2, T3,. Tn), where T1 is the 1 st temperature detector preset temperature matrix, T2 is the 2 nd temperature detector preset temperature matrix, T3 is the 3 rd temperature detector preset temperature matrix, and Tn is the nth temperature detector preset temperature matrix; for the preset water spray amount matrix group Q0, Q0(Q1, Q2, Q3.. Qn), wherein Q1 is the first sprinkler preset water spray amount matrix, Q2 is the second sprinkler preset water spray amount matrix, Q3 is the third sprinkler preset water spray amount matrix, and Qn is the nth sprinkler preset water spray amount matrix;
when the central control unit controls the first temperature detector to detect the temperature of a first site where the first temperature detector is located, the central control unit selects a T1 matrix from a T0 matrix group as a temperature detection standard of the site, selects a Q1 matrix from a Q0 matrix group and uses parameters in the Q1 matrix as a regulation standard of a first sprayer in the site;
when the central control unit controls the second temperature detector to detect the temperature of a second site where the second temperature detector is located, the central control unit selects a T2 matrix from a T0 matrix group as a temperature detection standard of the site, selects a Q2 matrix from a Q0 matrix group and uses parameters in the Q2 matrix as a regulation standard of a second sprayer in the site;
when the central control unit controls the third temperature detector to detect the temperature of a third site where the third temperature detector is located, the central control unit selects a T3 matrix from a T0 matrix group as a temperature detection standard of the site, selects a Q3 matrix from a Q0 matrix group and uses parameters in the Q3 matrix as a regulation standard of a third sprayer in the site;
when the central control unit controls the nth temperature detector to detect the temperature of the nth position, the central control unit selects a Tn matrix from a T0 matrix group as the temperature detection standard of the position, selects a Qn matrix from a Q0 matrix group and uses parameters in the Qn matrix as the regulation standard of the nth sprayer in the position.
7. The smoke evacuation system for fire fighting engineering according to claim 6, wherein for the ith preset temperature matrix Ti, i is 1, 2, 3.. n, Ti (Tia, Tib, Tic, Tid), where Tia is the ith temperature detector first preset temperature, Tib is the ith temperature detector second preset temperature, Tic is the ith temperature detector third preset temperature, Tid is the ith temperature detector fourth preset temperature, and each preset temperature value is gradually increased in order;
the method comprises the steps that a water spraying quantity matrix Qi, Qi (Qia, Qib, Qic, Qid and Qi0) is preset for the ith sprayer, wherein Qia is a first preset water spraying quantity of the ith sprayer, Qib is a second preset water spraying quantity of the ith sprayer, Qic is a third preset water spraying quantity of the ith sprayer, Qid is a fourth preset water spraying quantity of the ith sprayer, Qi0 is a preset auxiliary water spraying quantity of the ith sprayer, for Qia, Qib, Qic and Qid, the preset water spraying quantities are gradually increased in sequence, and for a preset auxiliary water spraying quantity Qi0, Qic < Qi0 < Qid;
when the central control unit controls the ith temperature detector to detect the temperature of the ith position, the ith temperature detector can detect the temperature ti of the ith position in real time, when the ith temperature detector detects the value of ti, the temperature detector transmits ti to the central control unit, and the central control unit compares ti with each parameter in a ti matrix:
when ti is less than Tia, the central control unit judges that the ith point is not on fire and does not start the ith sprayer;
when the Tia is less than or equal to ti and less than the Tib, the central control unit judges that the ith point has open fire and the intensity of the fire is weak, the central control unit starts the ith sprayer and sets the water spraying amount of the sprayer to be Qia;
when Tib is more than or equal to and more than ti is more than Tic, the central control unit judges that the ith point has open fire and the intensity of the fire is low, the central control unit starts the ith sprayer and sets the water spraying amount of the sprayer to Qib;
when Tic is more than or equal to ti and less than Tid, the central control unit judges that the ith point has open fire and the intensity of the fire is in the middle, the central control unit starts the ith sprayer and sets the water spraying amount of the sprayer to Qic;
when Ti is larger than or equal to tid, the central control unit judges that the ith point has open fire and the intensity of fire is high, the central control unit starts the ith sprayer, sets the water spraying amount of the sprayer to Qid and adjusts the water spraying amount of the sprayer adjacent to the ith sprayer to a specified value so as to perform auxiliary fire extinguishing;
when the central control module adjusts the water spraying amount of a j-th sprayer in a j-th site adjacent to the i-th site to Qjd, j is 1, 2, 3,. n, and j-i is +/-1, the central control module starts the i-th sprayer and adjusts the water spraying amount of the i-th sprayer to Qi0 so that the i-th sprayer performs auxiliary fire extinguishing.
8. The smoke exhaust system for the fire engineering as claimed in claim 7, wherein the central control unit is provided with a preset feature point matrix S0 and a preset feature quantity D; for the preset feature point matrix S0, S0(S1, S2, S3,. Sm), wherein S1 is a first preset feature, S2 is a second preset feature, S3 is a third preset feature, and Sm is an mth preset feature;
when the ith smoke detector detects that the smoke concentration ri in the ith site is less than Ria and the ith temperature detector detects that the temperature ti in the ith point is more than or equal to Tia, the central control unit cannot judge the specific situation in the house, the central control unit starts the image acquisition unit at the moment, the image acquisition unit acquires the image information of the ith point and transmits the image information to the central control unit, and the central control unit analyzes the image information to judge whether the ith point is on fire or not;
when the central control unit analyzes the image information, the central control unit establishes an image information feature quantity A, after the establishment is completed, the central control unit sequentially identifies features from the image information and sequentially matches the features with preset features in an S0 matrix, after the retrieval of the central control unit is completed, the quantity M of the features which can be matched with the features of each matrix in the S0 matrix in the image information is counted, at the moment, the central control unit marks A as M and compares A with M:
when A is less than M, the central control unit judges that the ith point is not on fire;
and when A is larger than or equal to M, the central control unit judges that the ith point is on fire, controls the ith temperature detector to detect the actual temperature of the ith point and adjusts the water spraying amount of the ith sprayer according to the detection result.
9. A smoke evacuation system for fire fighting projects as defined in claim 1 wherein a filter screen is further provided in each smoke evacuation duct for filtering out fine particles in the smoke.
10. The smoke exhaust system for the fire engineering as claimed in claim 1, wherein an alarm unit is further provided in the system, the alarm unit is provided on the ceiling of the room and connected to the central control unit, and when the central control unit determines that a fire is generated at any point in the room, the central control unit controls the alarm unit to be activated to give an alarm.
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| CN202010971957.6A CN112050339B (en) | 2020-09-16 | 2020-09-16 | Smoke exhaust system for fire engineering |
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| CN202010971957.6A CN112050339B (en) | 2020-09-16 | 2020-09-16 | Smoke exhaust system for fire engineering |
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| CN112050339B CN112050339B (en) | 2022-04-26 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112843578A (en) * | 2021-01-13 | 2021-05-28 | 山东源鑫建筑设计有限公司 | Intelligent control system for building fire fighting |
| CN115120920A (en) * | 2022-06-25 | 2022-09-30 | 青岛佳世特尔智创科技有限公司 | Intelligent fire fighting management method and system |
| CN115282529A (en) * | 2022-07-13 | 2022-11-04 | 国网河北省电力有限公司超高压分公司 | Cable temperature monitoring and intelligent ventilation system |
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| CN112050339B (en) | 2022-04-26 |
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