CN206669976U - Fire-fighting forced draft control system and fire-fighting air-supply instrument - Google Patents

Fire-fighting forced draft control system and fire-fighting air-supply instrument Download PDF

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Publication number
CN206669976U
CN206669976U CN201720429289.8U CN201720429289U CN206669976U CN 206669976 U CN206669976 U CN 206669976U CN 201720429289 U CN201720429289 U CN 201720429289U CN 206669976 U CN206669976 U CN 206669976U
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CN
China
Prior art keywords
pressure difference
forced draft
fire
pressure
relief valve
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Expired - Fee Related
Application number
CN201720429289.8U
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Chinese (zh)
Inventor
聂春艳
李军
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Tianjin Run Dazhongke Instrument Co Ltd
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Tianjin Run Dazhongke Instrument Co Ltd
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Priority to CN201720429289.8U priority Critical patent/CN206669976U/en
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Publication of CN206669976U publication Critical patent/CN206669976U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model, which provides a kind of fire-fighting forced draft control system and fire-fighting air-supply instrument, the system, to be included:Forced draft machine, multiple differential pressure controllers, relief valve control cabinet is bypassed, bypass relief valve and host computer, wherein, forced draft machine is blown by ajutage to the blowing shaft of building;Multiple differential pressure controllers are used for the pressure difference for detecting target area;Bypass relief valve control cabinet is used to analyze the pressure difference of differential pressure controller transmission, to control the running status of bypass relief valve according to analysis result;Host computer is communicated to connect with bypass relief valve control cabinet, and for receiving pressure difference, the floor of failure is judged according to pressure difference.The host computer of the system can judge the floor to go wrong according to pressure difference, and practicality is good, and the technical problem for the floor information that pressure difference goes wrong can not be detected by alleviating existing fire-fighting forced draft control system.

Description

Fire-fighting forced draft control system and fire-fighting air-supply instrument
Technical field
The utility model is related to the technical field of structural fire protection, more particularly, to a kind of fire-fighting forced draft control system and Fire-fighting air-supply instrument.
Background technology
Smoke evacuation control to be taken to conflagration area in high-rise building design so that flue gas caused by fire and heat can Rapid discharge, evacuation and fire suppression in favor of personnel;Meanwhile machinery should be taken to add in the region such as non-fire and fire escape Force feed wind measure, build relative malleation, prevent flue gas and heat from invading, for escape people build a relative nonsmoking section or Without cigarette channel.Explicitly point out in the smoke proof staircase for not possessing natural draught system condition, disappear in the relevant fire specification that country puts into effect Anti- escalator cup or common antechamber should set the facility of independent mechanism contact type sensor.
When fire occurs, these smoke abatement facilities can be that above-mentioned space pressurization is blown, and prevent flue gas and heat from entering, to escape Raw people build a nonsmoking section and without cigarette channels.But if smoke controlling equipment works always, it may appear that staircase, cup Or common antechamber malleation is excessive, the people for causing conflagration area can not open fire exit door and enter nonsmoking section.In order to which cigarette can either be ensured Gas and heat do not invade smoke proof staircase, cup or common antechamber, and and can enough ensures that fire zone people can easily push fire resistant doorsets open Into anti-cigarette district, the overbottom pressure value (i.e. pressure difference) for typically requiring smoke proof staircase is 40Pa to 50Pa or cup, common antechamber Overbottom pressure value be 25Pa to 30Pa.
Existing fire-fighting forced draft control system detects the pressure difference of cup or staircase generally by differential pressure controller Value, pressure difference is analyzed to obtain switch controlling signal, the opening and closing of switch controlling signal control bypass relief valve are real The now cup to building or the effect of stairwell pressurization air-supply and pressure release.
The transmitting procedure of switch controlling signal is not sufficiently stable, and if when the pressure difference of a certain layer goes wrong, Wu Fagen The specific floor to be gone wrong according to switch controlling signal, it is also necessary to excluded, workload is big, and practicality is poor.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of fire-fighting forced draft control system and fire-fighting air-supply Instrument, to alleviate the technology for the specific floor information that existing fire-fighting forced draft control system can not detect that pressure difference goes wrong Problem.
In a first aspect, the utility model embodiment provides a kind of fire-fighting forced draft control system, including:Forced draft Machine, multiple differential pressure controllers, relief valve control cabinet is bypassed, bypass relief valve and host computer, wherein,
The forced draft machine is arranged at the top layer of building, the forced draft machine sending to the building by ajutage Ventilating shaft is blown;
The multiple differential pressure controller is arranged in the target area of each floor of the building, for detecting the target area The pressure difference in domain, wherein, the target area includes the cup of the building and/or the staircase of the building, when the mesh When mark region is the cup, pressure difference value of the pressure difference between the cup and corridor, when the target area is During the staircase, pressure difference value of the pressure difference between the staircase and the cup;
It is described bypass relief valve be arranged on the bypass pipe between the forced draft machine and the blowing shaft, and with it is described Bypass the connection of relief valve control cabinet;
The bypass relief valve control cabinet is arranged at the top layer of the building, and is connected with each differential pressure controller by bus Connect, the pressure difference for being transmitted to the differential pressure controller is analyzed, to control the bypass relief valve according to analysis result Running status;
The host computer communicates to connect with the bypass relief valve control cabinet, for receiving the pressure difference, and according to institute State the floor that pressure difference judges to break down.
With reference in a first aspect, the utility model embodiment provides the first possible embodiment of first aspect, its In, the system also includes:
Forced draft mouth, wherein, the quantity of the forced draft mouth is multiple, and each forced draft mouth is arranged at institute Target area is stated, and is connected by the ajutage with the blowing shaft, the forced draft mouth is used in the blowing shaft Wind be delivered to the target area.
With reference in a first aspect, the utility model embodiment provides second of possible embodiment of first aspect, its In, the system also includes:Cigarette induction device and/or fire-alarm;
The cigarette induction device is connected with the forced draft machine, for sensing the smokescope in the building, when described When smokescope is more than preset concentration, generation controls the signal that the forced draft machine is opened, so that the forced draft machine is opened Open;
The fire-alarm is connected with the forced draft machine, for receiving the fire triggering command of user's transmission, root Fire alarm is carried out according to the fire triggering command, and controls the forced draft machine to open according to the fire triggering command.
With reference in a first aspect, the utility model embodiment provides the third possible embodiment of first aspect, its In, the bus includes RS485 buses.
With reference in a first aspect, the utility model embodiment provides the 4th kind of possible embodiment of first aspect, its In, it is provided with wireless communication module in the bypass relief valve control cabinet;
The bypass relief valve control cabinet can send the pressure difference by the wireless communication module to the host computer Value, so that user monitors pressure difference in the building in real time.
With reference in a first aspect, the utility model embodiment provides the 5th kind of possible embodiment of first aspect, its In, the communication means of the wireless communication module includes at least one of:GPRS communicates, Wifi communications, Bluetooth communication.
With reference in a first aspect, the utility model embodiment provides the 6th kind of possible embodiment of first aspect, its In, the differential pressure controller includes:Pressure differential detection module, pressure differential resetting module, pressure difference comparison module, pressure difference control module and pressure Difference alarming module;
The pressure differential detection module, for detecting the pressure difference of the target area;
The pressure differential resetting module, the setting for receiving user instruct, and according to the default pressure of setting instruction setting Difference;
The pressure difference comparison module is connected with the pressure differential detection module and the pressure differential resetting module respectively, for receiving The pressure difference that the pressure differential detection module detects, and the preset pressure value of the pressure differential resetting module setting is received, and will The pressure difference obtains comparative result compared with the preset pressure value;
The pressure difference control module is connected with the pressure difference comparison module, when the comparative result is that the pressure difference is more than During the preset pressure value, generation controls the alarm signal of the pressure difference alarm module alarm, so that the pressure difference alarm module Alarmed.
With reference in a first aspect, the utility model embodiment provides the 7th kind of possible embodiment of first aspect, its In, the pressure difference alarm module includes audible-visual annunciator.
With reference in a first aspect, the utility model embodiment provides the 8th kind of possible embodiment of first aspect, its In, the differential pressure controller is:Intelligent digital transmitter.
Second aspect, the utility model embodiment additionally provide a kind of fire-fighting air-supply instrument, including:Institute in above-mentioned first aspect The fire-fighting forced draft control system stated.
The utility model embodiment brings following beneficial effect:The utility model embodiment provides a kind of fire-fighting malleation Air supply control system and fire-fighting air-supply instrument, the fire-fighting forced draft control system include:Forced draft machine, multiple pressure difference controls Device, relief valve control cabinet is bypassed, bypass relief valve and host computer, wherein, forced draft machine is arranged at the top layer of building, positive force feed Blower fan is blown by ajutage to the blowing shaft of building;Multiple differential pressure controllers are arranged in the target area of each floor of building, For detecting the pressure difference of target area, wherein, target area includes the cup of building and/or the staircase of building, works as target When region is cup, pressure difference value of the pressure difference between cup and corridor, when target area is staircase, pressure difference is building Pressure difference value between ladder between cup;Bypass relief valve is arranged on the bypass pipe between forced draft machine and blowing shaft, and It is connected with bypass relief valve control cabinet;Bypass relief valve control cabinet is arranged at the top layer of building, and leads to each differential pressure controller Bus connection is crossed, for analyzing the pressure difference that differential pressure controller transmits, to control bypass relief valve according to analysis result Running status;Host computer communicates to connect with bypass relief valve control cabinet, judges for receiving pressure difference, and according to pressure difference The floor of existing failure.
Traditional fire-fighting forced draft control system is to control side by the switch controlling signal of differential pressure controller transmission The opening and closing of relief valve, and then realize to cup or the stairwell pressurization air-supply of building and the effect of pressure release.With tradition Fire-fighting forced draft control system compare, the fire-fighting forced draft control system in the utility model is controlled by multiple pressure differences The pressure difference of target area, is then delivered to bypass pressure release by the pressure difference detected by bus in device detection each floor of building Valve control cabinet, and then bypass relief valve and pressure difference is analyzed, so as to control the running status of bypass relief valve (that is, to open Or close), so that pressure difference can be maintained at certain scope in the target area of building;In addition, bypass relief valve control cabinet Pressure difference can also be delivered in the host computer for communicating with connection, on the one hand monitor the pressure difference of each floor in real time for user Value, on the other hand, host computer can just judge the floor to break down according to pressure difference, and practicality is good, and degree of intelligence is high, delay The technical problem for the specific floor information that pressure difference goes wrong can not be detected by having solved existing fire-fighting forced draft control system.
Other feature and advantage of the present utility model will illustrate in the following description, also, partly from specification In become apparent, or understood by implementing the utility model.The purpose of this utility model and other advantages are illustrating Specifically noted structure is realized and obtained in book, claims and accompanying drawing.
To enable above-mentioned purpose of the present utility model, feature and advantage to become apparent, preferred embodiment cited below particularly, and Accompanying drawing appended by cooperation, is described in detail below.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation for fire-fighting forced draft control system that the utility model embodiment provides;
Fig. 2 is the knot of the fire-fighting forced draft control system when bypass relief valve that the utility model embodiment provides is opened Structure schematic diagram;
Fig. 3 is the knot of the fire-fighting forced draft control system when bypass relief valve that the utility model embodiment provides is closed Structure schematic diagram;
Fig. 4 is the structural representation for the differential pressure controller that the utility model embodiment provides.
Icon:
11- forced draft machines;The how individual differential pressure controllers of 12-;13- bypasses relief valve control cabinet;14- bypasses relief valve;15- Host computer;16- forced draft mouths;17- cigarette induction devices;18- fire-alarms;131- wireless communication modules;121- pressure differential detections Module;122- pressure differential resetting modules;123- pressure difference comparison modules;124- pressure difference control modules;125- pressure difference alarm modules.
Embodiment
To make the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with accompanying drawing to this The technical scheme of utility model is clearly and completely described, it is clear that described embodiment is that the utility model part is real Apply example, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making The every other embodiment obtained under the premise of creative work, belong to the scope of the utility model protection.
For ease of understanding the present embodiment, first to the positive force feed of a kind of fire-fighting disclosed in the utility model embodiment Wind control system describes in detail.
A kind of fire-fighting forced draft control system, with reference to figure 1, including:Forced draft machine 11, multiple differential pressure controllers 12 (including differential pressure controller 12a ..., differential pressure controller 12 (n-1), differential pressure controller 12n), bypass relief valve control cabinet 13 is other Relief valve 14 and host computer 15, wherein,
Forced draft machine is arranged at the top layer of building, and forced draft machine is blown by ajutage to the blowing shaft of building;
Multiple differential pressure controllers are arranged in the target area of each floor of building, for detecting the pressure difference of target area, Wherein, target area includes the cup of building and/or the staircase of building, and when target area is cup, pressure difference is cup Pressure difference value between corridor, when target area is staircase, pressure difference value of the pressure difference between staircase and cup;
Bypass relief valve is arranged on the bypass pipe between forced draft machine and blowing shaft, and with bypassing relief valve control cabinet Connection;
Bypass relief valve control cabinet is arranged at the top layer of building, and is connected with each differential pressure controller by bus, is used for The pressure difference of differential pressure controller transmission is analyzed, to control the running status of bypass relief valve according to analysis result;Wherein, The running status of bypass relief valve includes:The opening of relief valve is bypassed, bypasses the closed mode of relief valve.
Host computer communicates to connect with bypass relief valve control cabinet, judges occur for receiving pressure difference, and according to pressure difference The floor of failure.
In the utility model embodiment, when fire occurs in building, forced draft machine can be by ajutage to building The blowing shaft air-supply of space, and then wind enters the target area of building so that the air pressure increase in target area, thus It can prevent because flue gas caused by fire and heat are entered in target area, be that a nonsmoking section and nothing are built in the escape of people Cigarette channel.
In addition, the air pressure in target area can not be excessive, if pressure is excessive, the people of conflagration area will be unable to beat Fire exit door escape is opened, so, inventor is provided with differential pressure controller in target area, for detecting the pressure difference of target area Value.
Specifically, target area includes the cup of building and/or the staircase of building, when in use, typically in each floor One differential pressure controller of middle setting, the differential pressure controller can be arranged on cup, and (cup here is also included before sharing Room), staircase can also be arranged on, is set according to the needs of user.When using differential pressure controller, it is preferred that be arranged on Apart from 2.5 meters of ground or on the metope of 0.2 meter of ceiling.
The differential pressure controller of each floor is connected by bus with bypass relief valve control cabinet, for being transmitted to differential pressure controller Pressure difference analyzed.
Specifically, if differential pressure controller is arranged at cup, then, the scope of the pressure difference of the cup detected should be 25Pa writes the scope of the pressure difference in bypass relief valve control cabinet as preset pressure value scope between 30Pa, works as side When the pressure difference that relief valve control cabinet analyzes to obtain in cup is more than 30Pa, then the control bypass pressure release of relief valve control cabinet is bypassed Valve is opened, to carry out pressure release;And when the pressure difference that analysis is obtained in cup is less than 25Pa, then bypass the control of relief valve control cabinet Bypass relief valve to close, to be that forced draft machine carries out pressure air blowing to target area.
If differential pressure controller is arranged at staircase, then, the scope of the pressure difference of the staircase detected should be 40Pa equally writes the scope of the pressure difference in bypass relief valve control cabinet as preset pressure value scope between 50Pa. And then bypass the pressure difference that relief valve control cabinet is illustrated differential pressure controller and analyze, wherein, the process of analysis is retouched with above-mentioned The process stated is identical, is no longer repeated herein.
In the utility model embodiment, in order to cause the personnel of distal end also to monitor the situation in building, The bypass relief valve control cabinet of inventor's design can communicate to connect with host computer, and it is defeated that host computer receives bypass relief valve control cabinet After the pressure difference sent, on the one hand it is monitored for distal end personnel;On the other hand, host computer can judge pressure difference according to pressure difference The specific floor information to go wrong.So, distal end personnel are facilitated to take counter-measure to corresponding floor.
Traditional fire-fighting forced draft control system is to control side by the switch controlling signal of differential pressure controller transmission The opening and closing of relief valve, and then realize to cup or the stairwell pressurization air-supply of building and the effect of pressure release.With tradition Fire-fighting forced draft control system compare, the fire-fighting forced draft control system in the utility model is controlled by multiple pressure differences The pressure difference of target area, is then delivered to bypass pressure release by the pressure difference detected by bus in device detection each floor of building Valve control cabinet, and then bypass relief valve and pressure difference is analyzed, so as to control the running status of bypass relief valve (that is, to open Or close), so that pressure difference can be maintained at certain scope in the target area of building;In addition, bypass relief valve control cabinet Pressure difference can also be delivered in the host computer for communicating with connection, on the one hand monitor the pressure difference of each floor in real time for user Value, on the other hand, host computer can just judge the floor to break down according to pressure difference, and practicality is good, and degree of intelligence is high, delay The technical problem for the specific floor information that pressure difference goes wrong can not be detected by having solved existing fire-fighting forced draft control system.
The above has carried out overall description to fire-fighting forced draft control system, controls system to fire-fighting forced draft below System describes in detail.
Further, referring to figs. 2 and 3 Fig. 2 is the knot of fire-fighting forced draft control system when bypass relief valve is opened Structure schematic diagram.Fig. 3 is the structural representation of fire-fighting forced draft control system when bypass relief valve is closed.
Fire-fighting forced draft control system also includes:
Forced draft mouth 16, wherein, the quantity of forced draft mouth is multiple, and each forced draft mouth is arranged at target area Domain, and be connected by ajutage with blowing shaft, forced draft mouth is used to the wind in blowing shaft being delivered to target area.
The structure of forced draft mouth is varied, and the forced draft mouth in the utility model embodiment is power-operated shutter malleation Air outlet, but the utility model embodiment is not particularly limited to it.
Further, fire-fighting forced draft control system also includes:Cigarette induction device 17 and/or fire-alarm 18;
Cigarette induction device is connected with forced draft machine, for sensing the smokescope in building, is preset when smokescope is more than During concentration, the signal of generation control forced draft machine unlatching, so that forced draft machine is opened;
Fire-alarm is connected with forced draft machine, for receiving the fire triggering command of user's transmission, is touched according to fire Send instructions and carry out fire alarm, and control forced draft machine to open according to fire triggering command.
In order that the system obtained entirely is more intelligent, inventor is provided with cigarette sense in fire-fighting forced draft control system Device and/or fire-alarm.
Cigarette induction device is connected with forced draft machine, can sense the smokescope in building, is preset when smokescope is more than During concentration, control forced draft machine is opened.
If break down in view of cigarette induction device or react insensitive, the phenomenon that fire is failed to report may be produced, is The generation of the phenomenon can be reduced, inventor thinks that fire-alarm can also be set in systems, and fire occurs in building Afterwards, user can trigger fire-alarm, and fire-alarm receives the fire triggering command that user sends and alarmed, and energy It is enough to control forced draft machine to open according to fire triggering command.Such redundancy, which is set, more to be insured, when avoiding occurring fire, leakage Report the generation of phenomenon.
In addition, such scheme is a preferable scheme, user can only set cigarette induction device or fire in systems Alarm, the utility model embodiment are not particularly limited to it.
Further, differential pressure controller is connected with bypass relief valve control cabinet bus, and the bus includes RS485 buses.
When carrying out the transmission of data using RS485 buses, more stable, long transmission distance, contain in the data of transmission The address code related to specific floor is contained in the pressure difference of address code, i.e. differential pressure controller transmission, so, host computer is with regard to energy Enough floors for judging to break down according to pressure difference.
Further, referring to figs. 2 and 3 being provided with wireless communication module 131 in bypass relief valve control cabinet 13;
Pressure difference can be sent by wireless communication module to host computer by bypassing relief valve control cabinet, so that user supervises in real time Survey pressure difference in building.Wherein, host computer includes computer and/or mobile phone.
Further, the communication means of wireless communication module includes at least one of:GPRS communicates, Wifi communications, blue Tooth communicates.
Further, with reference to figure 4, differential pressure controller includes:Pressure differential detection module 121, pressure differential resetting module 122, pressure difference Comparison module 123, pressure difference control module 124 and pressure difference alarm module 125;
Pressure differential detection module, for detecting the pressure difference of target area;
Pressure differential resetting module, the setting for receiving user instruct, and instruct setting preset pressure value according to setting;
Pressure difference comparison module is connected with pressure differential detection module and pressure differential resetting module respectively, for receiving pressure differential detection module The pressure difference detected, and the preset pressure value of pressure differential resetting module setting is received, and pressure difference and preset pressure value are entered Row compares, and obtains comparative result;
Pressure difference control module is connected with pressure difference comparison module, raw when comparative result is that pressure difference is more than preset pressure value Into the alarm signal of control pressure difference alarm module alarm, so that pressure difference alarm module is alarmed.
When pressure difference goes wrong in the floor of building, by host computer distal end, personnel can obtain specific information, be Also the Field Force of building can be reminded, differential pressure controller is designed to that a pressure difference with warning function controls by inventor Device.The differential pressure controller is:Intelligent digital transmitter.Specifically, when differential pressure controller is arranged at cup, pressure difference can be passed through Setting module sets the preset pressure value of cup, and the preset pressure value can be 25Pa to any one value between 30Pa, press Poor detection module detects the pressure difference of cup in real time, and the pressure difference is delivered into pressure difference comparison module, and pressure difference comparison module will The pressure difference that pressure differential detection module detects is compared with preset pressure value, when pressure difference is more than preset pressure value, control Pressure difference alarm module is alarmed.Wherein, pressure difference alarm module includes audible-visual annunciator.
When differential pressure controller is arranged at staircase, the process of alarm is similar with said process, simply preset pressure value (40Pa to any one value between 50Pa) is changed, and is no longer repeated herein.
The utility model embodiment additionally provides a kind of fire-fighting air-supply instrument, and fire-fighting air-supply instrument uses the positive force feed of above-mentioned fire-fighting Wind control system.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description With the specific work process of device, the corresponding process in preceding method embodiment is may be referred to, will not be repeated here.
In addition, in the description of the utility model embodiment, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly be connected Connect;Can be mechanical connection or electrical connection;Can be joined directly together, can also be indirectly connected by intermediary, can To be the connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition Concrete meaning in the utility model.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
Finally it should be noted that:Embodiment described above, only specific embodiment of the present utility model, to illustrate this The technical scheme of utility model, rather than its limitations, the scope of protection of the utility model is not limited thereto, although with reference to foregoing The utility model is described in detail embodiment, it will be understood by those within the art that:It is any to be familiar with this skill For the technical staff in art field in the technical scope that the utility model discloses, it still can be to the skill described in previous embodiment Art scheme is modified or can readily occurred in change, or carries out equivalent substitution to which part technical characteristic;And these modifications, Change is replaced, and the essence of appropriate technical solution is departed from the spirit and model of the utility model embodiment technical scheme Enclose, should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model described should be wanted with right The protection domain asked is defined.

Claims (10)

  1. A kind of 1. fire-fighting forced draft control system, it is characterised in that including:Forced draft machine, multiple differential pressure controllers, bypass Relief valve control cabinet, relief valve and host computer are bypassed, wherein,
    The forced draft machine is arranged at the top layer of building, blowing shaft of the forced draft machine by ajutage to the building Air-supply;
    The multiple differential pressure controller is arranged in the target area of each floor of the building, for detecting the target area Pressure difference, wherein, the target area includes the cup of the building and/or the staircase of the building, when the target area When domain is the cup, pressure difference value of the pressure difference between the cup and corridor, when the target area is described During staircase, pressure difference value of the pressure difference between the staircase and the cup;
    It is described bypass relief valve be arranged on the bypass pipe between the forced draft machine and the blowing shaft, and with the bypass Relief valve control cabinet connects;
    The bypass relief valve control cabinet is arranged at the top layer of the building, and is connected with each differential pressure controller by bus, Pressure difference for being transmitted to the differential pressure controller is analyzed, with the fortune according to the analysis result control bypass relief valve Row state;
    The host computer communicates to connect with the bypass relief valve control cabinet, for receiving the pressure difference, and according to the pressure Difference judges the floor to break down.
  2. 2. system according to claim 1, it is characterised in that the system also includes:
    Forced draft mouth, wherein, the quantity of the forced draft mouth is multiple, and each forced draft mouth is arranged at the mesh Region is marked, and is connected by the ajutage with the blowing shaft, the forced draft mouth is used for the wind in the blowing shaft It is delivered to the target area.
  3. 3. system according to claim 1, it is characterised in that the system also includes:Cigarette induction device and/or fire alarm Device;
    The cigarette induction device is connected with the forced draft machine, for sensing the smokescope in the building, when the smog When concentration is more than preset concentration, generation controls the signal that the forced draft machine is opened, so that the forced draft machine is opened;
    The fire-alarm is connected with the forced draft machine, for receiving the fire triggering command of user's transmission, according to institute State fire triggering command and carry out fire alarm, and control the forced draft machine to open according to the fire triggering command.
  4. 4. system according to claim 1, it is characterised in that the bus includes RS485 buses.
  5. 5. system according to claim 1, it is characterised in that be provided with radio communication in the bypass relief valve control cabinet Module;
    The bypass relief valve control cabinet can send the pressure difference by the wireless communication module to the host computer, with User is set to monitor pressure difference in the building in real time.
  6. 6. system according to claim 5, it is characterised in that the communication means of the wireless communication module is included below extremely It is one of few:GPRS communicates, Wifi communications, Bluetooth communication.
  7. 7. system according to claim 1, it is characterised in that the differential pressure controller includes:Pressure differential detection module, pressure difference Setting module, pressure difference comparison module, pressure difference control module and pressure difference alarm module;
    The pressure differential detection module, for detecting the pressure difference of the target area;
    The pressure differential resetting module, the setting for receiving user instruct, and according to the setting instruction setting preset pressure value;
    The pressure difference comparison module is connected with the pressure differential detection module and the pressure differential resetting module respectively, described for receiving The pressure difference that pressure differential detection module detects, and the preset pressure value of the pressure differential resetting module setting is received, and by described in Pressure difference obtains comparative result compared with the preset pressure value;
    The pressure difference control module is connected with the pressure difference comparison module, when the comparative result is described in the pressure difference is more than During preset pressure value, generation controls the alarm signal of the pressure difference alarm module alarm, so that the pressure difference alarm module is carried out Alarm.
  8. 8. system according to claim 7, it is characterised in that the pressure difference alarm module includes audible-visual annunciator.
  9. 9. system according to claim 1, it is characterised in that the differential pressure controller is:Intelligent digital transmitter.
  10. The instrument 10. a kind of fire-fighting is blown, it is characterised in that the fire-fighting air-supply instrument is using any one of the claims 1 to 9 institute The fire-fighting forced draft control system stated.
CN201720429289.8U 2017-04-21 2017-04-21 Fire-fighting forced draft control system and fire-fighting air-supply instrument Expired - Fee Related CN206669976U (en)

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CN201720429289.8U CN206669976U (en) 2017-04-21 2017-04-21 Fire-fighting forced draft control system and fire-fighting air-supply instrument

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112684821A (en) * 2021-02-03 2021-04-20 贵庭数字科技(天津)有限公司 Building fire-fighting emergency evacuation system using LoRa wireless communication module
CN113124540A (en) * 2019-12-31 2021-07-16 湖南集森节能环保科技有限公司 Smoke-proof intelligent control system with automatic inspection function
CN113589852A (en) * 2021-07-02 2021-11-02 深圳中广核工程设计有限公司 Floor smoke prevention control method
CN113847669A (en) * 2021-10-29 2021-12-28 南京长江都市建筑设计股份有限公司 Double-fan pressurized air supply system and working method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113124540A (en) * 2019-12-31 2021-07-16 湖南集森节能环保科技有限公司 Smoke-proof intelligent control system with automatic inspection function
CN112684821A (en) * 2021-02-03 2021-04-20 贵庭数字科技(天津)有限公司 Building fire-fighting emergency evacuation system using LoRa wireless communication module
CN112684821B (en) * 2021-02-03 2023-05-16 贵庭数字科技(天津)有限公司 Building fire emergency evacuation system using LoRa wireless communication module
CN113589852A (en) * 2021-07-02 2021-11-02 深圳中广核工程设计有限公司 Floor smoke prevention control method
CN113847669A (en) * 2021-10-29 2021-12-28 南京长江都市建筑设计股份有限公司 Double-fan pressurized air supply system and working method

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