CN208606334U - Fire-fighting positive pressure blast system with air pressure detection device - Google Patents
Fire-fighting positive pressure blast system with air pressure detection device Download PDFInfo
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- CN208606334U CN208606334U CN201820907450.2U CN201820907450U CN208606334U CN 208606334 U CN208606334 U CN 208606334U CN 201820907450 U CN201820907450 U CN 201820907450U CN 208606334 U CN208606334 U CN 208606334U
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Abstract
The utility model discloses a kind of fire-fighting positive pressure blast systems with air pressure detection device, multiple air outlets of each floor cup and/or staircase are built including being set to, the air outlet is connected to by air hose with air supply device, and the air supply device includes the forced draught blower connecting with the air hose, air inlet, the bypass pipe being arranged in parallel with the forced draught blower, the electronic relief valve being set in the bypass pipe；The system further includes air pressure detection device, the air pressure detection device includes that the multiple air pressure probes being arranged on the cup and/or staircase and corridor for building each floor, each air pressure probe are electrically connected microprocessor by data line, the microprocessor is electrically connected controller, and the controller is electrically connected electronic pressure-relief valve.The supply air system of the utility model, structure is simple, and air pressure probe is convenient for more ground multiple spot redundant measurement, can more accurately obtain pressure value, keeps wind pressure control in passageway for fire apparatus sensitive reliable.
Description
Technical field
The utility model belongs to structural fire protection technical field, is related to a kind of positive force feed of the fire-fighting with air pressure detection device
Wind system.
Background technique
In high-rise building design, the relevant fire specification that country puts into effect is explicitly pointed out, and is not having natural draught system condition
Smoke proof staircase, independent mechanism contact type sensor facility should be arranged in cup or common antechamber between Fire lift, to fire area
Smoke evacuation control is taken, so that flue gas and heat that fire generates are discharged rapidly, evacuation and fire suppression in favor of personnel；Together
When, in the regions such as non-fire and fire escape, mechanism contact type sensor measure is taken, opposite positive pressure is built, prevents flue gas and heat
Intrusion builds an opposite nonsmoking section or without cigarette channel for the people of escape.
If smoke controlling equipment works always, it may appear that staircase, cup or common antechamber positive pressure are excessive, cause fire zone
The people in domain can not open fire exit door and enter nonsmoking section.In order to guarantee that flue gas and heat do not invade smoke proof staircase, cup
Or common antechamber, and can guarantee that fire zone people can easily push fire resistant doorsets open and enter nonsmoking section, generally require smoke proof staircase or
Person's cup, common antechamber and the air pressure difference in corridor are maintained at reasonable section.
Such as Fig. 1, existing fire-fighting forced draft control system passes through air pressure generally by air pressure difference controller 15
Gap sensor 14 detects the pressure difference between cup and/or staircase 1 and corridor 2, is analyzed pressure difference to obtain switch control
Signal processed, and switch control signal is sent to controller 7, then the opening and closing of relief valve 64 are bypassed by the control of controller 7,
It realizes to the cup and/or 1 pressure air blowing of staircase of building and pressure release.But it during measuring air pressure difference value, needs
It is punched on cup and/or staircase 1 and the partition wall in corridor 2, wall coil 13 was allowed to pass through, in favor of the measurement of air pressure difference sensor 14
Air pressure difference, and punch on the wall and will affect metope beauty and increase civil engineering cost, while pressure difference signal is unstable, it influences correct
Judgement.As Fig. 2 analyzes air velocity transducer by Wind-speed controller 16 there are also one is air velocity transducer 12 is arranged in air hose 8
12 detection signal, obtains switch control signal, and sends switch control signal to controller 7, then controls side by controller 7
The opening and closing of relief valve 64 are realized to the cup and/or 1 pressure air blowing of staircase of building and pressure release；Due in air hose 8
Wind speed is unstable, and test error is very big, bypass 64 malfunction of relief valve often occurs.
Utility model content
For the fire-fighting forced draft control system of the prior art described in background technique, when measuring air pressure difference, pressure difference
Sensor needs punch on the partition wall in cup and/or staircase and corridor, influence metope beauty and air velocity transducer test
The big deficiency of error, the utility model provide a kind of fire-fighting positive pressure blast system with air pressure detection device, system benefit
It with air pressure probe, does not need to punch on partition wall, the wind of corridor air pressure and cup and/or staircase can be detected
Pressure difference, to control the opening and closing of bypass relief valve.
The utility model is achieved by the following technical solution, and is providing a kind of fire-fighting with air pressure detection device just
Force feed wind system, the air outlet of each floor cup and/or staircase is built including being set to, and the air outlet passes through air hose and send
Wind apparatus connection, the air supply device include the forced draught blower connecting with the air hose, air inlet and the forced draught blower
The bypass pipe being arranged in parallel, the electronic relief valve being set in the bypass pipe；It further include air pressure detection device, the sky
Air pressure force checking device includes the air pressure sensing being arranged on the cup and/or staircase and corridor for building each floor
Device, the microprocessor being electrically connected with each air pressure probe, the microprocessor are electrically connected controller, and the controller is electrically connected
Electronic pressure-relief valve.
: there is ignition point, fire alarm in the course of work of the utility model, and alarm system controls forced draught blower starting,
Cold air is sent by air hose to fire floor and neighbouring floor, and damper of blowing is opened, in fire floor and phase up and down
Air pressure probe on the cup and/or staircase of adjacent floors and corridor tests air pressure, will pressure signal everywhere
Microprocessor is reached, microprocessor compares the cup and/or stair of fire floor and neighbouring floor by accurately calculating
Between air pressure difference with this layer of corridor, if difference is higher than the threshold value of setting, microprocessor issues signal to controller,
Controller opens electronic relief valve, lowers the wind pressure of cup and/or staircase, protects the wind pressure of cup and/or staircase always
The definite value that keeps steady is maintained at design allowed band to control cup positive pressure value, avoids superpressure excess from blowing, can either guarantee flue gas
It does not invade smoke proof staircase, cup or common antechamber with heat, and can guarantee that fire zone people can easily push corridor fire resistant doorsets open
Into nonsmoking section.The supply air system of the utility model, structure is simple, easy for installation, and air pressure probe is convenient for more ground
Multiple spot redundant measurement can more accurately obtain pressure value, keep wind pressure control in passageway for fire apparatus sensitive reliable.
Further, the microprocessor is PLC or microcomputer.
Further, the system further include: cigarette induction device and/or fire alarm installation, it is described
Cigarette induction device is connect with the forced draught blower, for incuding smokescope in the corridor, when the smog is dense
Degree generates when being greater than setting concentration controls the signal that the forced draught blower is opened, and opens the forced draught blower；It is described
Fire-alarm is connect with the forced draught blower, for receiving the fire triggering command of user's transmission, is touched according to the fire
Send instructions and carry out fire alarm, and the forced draught blower is controlled according to the fire triggering command and is opened.
Further, the data line includes RS485 bus.
The beneficial effects of the utility model do not need to beat wall eye like that differential pressure pickup, pass through wall coil, pressure sensing
The electric wire of device, which can be walked, builds existing connecting groove, and pressure sensor test signal is accurate, stablizes, because air pressure probe exists
Structure and the high sensitivity using above simpler than air pressure difference sensor, air pressure difference is compared by microprocessor,
It is more accurate than the control system with differential pressure pickup, also stablize than the control system with air velocity transducer.Using the utility model band
The fire-fighting positive pressure blast system of pressure-detecting device, structure is simple, easy for installation, and it is more that air pressure probe is convenient for more ground
Point redundant measurement, can more accurately obtain pressure value, keep its tested wind pressure accurate, to keep wind pressure control in passageway for fire apparatus sensitive
Reliably.
Detailed description of the invention
The fire-fighting positive pressure blast system schematic diagram with differential pressure pickup of Fig. 1 prior art；
The fire-fighting positive pressure blast system schematic diagram with air velocity transducer of Fig. 2 prior art；
The fire-fighting positive pressure blast system schematic diagram with air pressure detection device of Fig. 3 the utility model；
In figure: 1, cup and/or staircase, 2, corridor, 3, fire resistant doorsets, 4, ventilating shaft, 5, air outlet, 6, air supply device, 7,
Controller, 8, air hose, 9, air pressure detection device, 10, data line, 12, air velocity transducer, 13, mistake wall coil, 14, air pressure
Gap sensor, 15, air pressure difference controller, 16, Wind-speed controller, 61, air inlet, 62, forced draught blower, 63, bypass pipe,
64, electronic relief valve, 91 air pressure probes, 92 microprocessors.
Specific embodiment:
The characteristics of to illustrate the utility model, the utility model is described in further detail with reference to the accompanying drawings and examples.
Query graph 3, a kind of fire-fighting positive pressure blast system with air pressure detection device, including before building each floor
The air outlet 5 of room and/or staircase 1, the air outlet 5 are connected to by air hose 8 with air supply device 6, and the air supply device 6 includes
The forced draught blower 62 that is connect with the air hose 8, air inlet 61, the bypass pipe 63 being arranged in parallel with the forced draught blower 62,
Electronic relief valve 64 in the bypass pipe 63 further includes air pressure detection device 9, the air pressure detection device
9 include the air pressure probe 91 being arranged on the cup and/or staircase 1 and corridor 2 for building each floor, with it is described each
The microprocessor 92 that air pressure probe 91 is electrically connected, the microprocessor 92 are electrically connected controller 7, and the controller 7 is electrically connected electricity
Dynamic pressure-relief valve 64.The supply air system of the present embodiment, structure is simple, easy for installation, and air pressure probe 15 is convenient for more ground
Multiple spot redundant measurement can more accurately obtain air pressure value, to keep wind pressure control in passageway for fire apparatus sensitive reliable.
In the present embodiment, the microprocessor 92 is microcomputer.
The fire-fighting forced draft system system with air pressure detection device of the present embodiment further include: cigarette induction device 16 and/
Or fire alarm installation 17, the cigarette induction device 16 are connect with the forced draught blower 62, for incuding smog in the corridor 2
Concentration generates the signal for controlling the forced draught blower 62 and opening when the smokescope is greater than setting concentration, has made described
Forced draught blower 62 is opened；The fire-alarm 17 is connect with the forced draught blower 62, for receiving the fire of user's transmission
Calamity triggering command carries out fire alarm according to the fire triggering command, and adds according to fire triggering command control is described
Force feed blower 62 is opened.
Data line 10 described in the present embodiment includes RS485 bus.
: there is ignition point, fire alarm in the course of work of the utility model embodiment, and alarm system controls forced draught blower
62 startings, cold air are sent by air hose 8 to fire floor and neighbouring floor, and 5 air door of air outlet is opened, in fire floor
And neighbouring floor cup and/or staircase 1 and air pressure probe 91 on corridor 2 test air pressure, will
Pressure signal reaches microprocessor 92 everywhere, and microprocessor 92 compares fire floor and neighbouring building by accurately calculating
The cup of layer and/or the air pressure difference of staircase 1 and this layer of corridor 2, if difference is higher than the threshold value of setting, micro process
Device 92 issues signal to controller 7, and controller 7 opens electronic relief valve 64, lowers the wind pressure of cup and/or staircase 1, before making
The wind pressure of room and/or staircase 1 remains stationary value and is maintained at design allowed band to control 2 positive pressure value of cup, avoids
The air-supply of superpressure excess, can either guarantee that flue gas and heat do not invade smoke proof staircase, cup or common antechamber, and can guarantee fire
Area people can easily push corridor fire resistant doorsets 3 open into nonsmoking section.
The beneficial effect of the utility model embodiment does not need to beat wall eye like that differential pressure pickup, by wall coil 13,
The data line 10 of air pressure probe, which can be walked, builds existing connecting groove, and air pressure probe test signal is accurate, stablizes,
Because air pressure probe 91 passes through micro- place in structure and the high sensitivity using above simpler than air pressure difference sensor 14
Reason device 92 compares air pressure difference, more accurate than the control system with differential pressure pickup, also than the control with air velocity transducer
System is stablized；Fire-fighting positive pressure blast system using the utility model with pressure-detecting device, structure is simple, easy for installation, empty
Air pressure force snesor is convenient for more ground multiple spot redundant measurement, can more accurately obtain pressure value, keep its tested wind pressure accurate,
To keep wind pressure control in passageway for fire apparatus sensitive reliable.
Certainly, above description is also not limited to the example above, and technical characteristic of the utility model without description can lead to
It crosses or realizes that details are not described herein using the prior art；Above embodiments and attached drawing are merely to illustrate the technology of the utility model
Scheme is not limitations of the present invention, and the utility model is described in detail referring to preferred embodiment, this
Field it is to be appreciated by one skilled in the art that those skilled in the art institute in the essential scope of the utility model
The variations, modifications, additions or substitutions made without departure from the objective of the utility model, want by the right that also should belong to the utility model
Seek protection scope.
Claims (3)
1. a kind of fire-fighting positive pressure blast system with air pressure detection device, it is characterised in that: including being set to each building of building
Multiple air outlets of layer cup and/or staircase, the air outlet are connected to by air hose with air supply device, the air supply device packet
It includes the forced draught blower connecting with the air hose, air inlet, the bypass pipe being arranged in parallel with the forced draught blower, be set to institute
State the electronic relief valve in bypass pipe；The system further includes air pressure detection device, and the air pressure detection device includes
Multiple air pressure probes for being arranged on the cup and/or staircase and corridor for building each floor, each air pressure
Force snesor is electrically connected microprocessor by data line, and the microprocessor is electrically connected controller, and the controller is electrically connected electronic release
Valve.
2. the fire-fighting positive pressure blast system according to claim 1 with air pressure detection device, it is characterised in that: described
Microprocessor is PLC or microcomputer.
3. the fire-fighting positive pressure blast system according to claim 1 with air pressure detection device, it is characterised in that: described
Data line includes RS485 bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820907450.2U CN208606334U (en) | 2018-06-12 | 2018-06-12 | Fire-fighting positive pressure blast system with air pressure detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820907450.2U CN208606334U (en) | 2018-06-12 | 2018-06-12 | Fire-fighting positive pressure blast system with air pressure detection device |
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| CN208606334U true CN208606334U (en) | 2019-03-15 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812083A (en) * | 2019-03-25 | 2019-05-28 | 中铁建设集团有限公司 | Intelligent fire-proofing Smoke prevention emergency guarantee communication base station |
| CN109839878A (en) * | 2019-03-04 | 2019-06-04 | 江苏荣夏安全科技有限公司 | Fire-fighting emergent evacuates overbottom pressure monitoring method and system |
| CN110440389A (en) * | 2019-08-15 | 2019-11-12 | 重庆众夏科技有限公司 | A kind of fire-fighting emergent evacuation overbottom pressure monitoring method and system |
| CN112303780A (en) * | 2020-11-05 | 2021-02-02 | 镇江市欧菱电气自动化系统设备有限公司 | Excess pressure controller with automatic closing alarm function |
| 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 |
-
2018
- 2018-06-12 CN CN201820907450.2U patent/CN208606334U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109839878A (en) * | 2019-03-04 | 2019-06-04 | 江苏荣夏安全科技有限公司 | Fire-fighting emergent evacuates overbottom pressure monitoring method and system |
| CN109812083A (en) * | 2019-03-25 | 2019-05-28 | 中铁建设集团有限公司 | Intelligent fire-proofing Smoke prevention emergency guarantee communication base station |
| CN109812083B (en) * | 2019-03-25 | 2024-03-19 | 中铁建设集团有限公司 | Intelligent fireproof smoke-proof emergency guarantee communication base station |
| CN110440389A (en) * | 2019-08-15 | 2019-11-12 | 重庆众夏科技有限公司 | A kind of fire-fighting emergent evacuation overbottom pressure monitoring method and system |
| CN112303780A (en) * | 2020-11-05 | 2021-02-02 | 镇江市欧菱电气自动化系统设备有限公司 | Excess pressure controller with automatic closing alarm function |
| 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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