CN108572673A - A kind of pressure difference TT＆C system with analog output - Google Patents
A kind of pressure difference TT＆C system with analog output Download PDFInfo
- Publication number
- CN108572673A CN108572673A CN201810769932.0A CN201810769932A CN108572673A CN 108572673 A CN108572673 A CN 108572673A CN 201810769932 A CN201810769932 A CN 201810769932A CN 108572673 A CN108572673 A CN 108572673A
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- pressure
- air
- pressure difference
- control cabinet
- valve control
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- 238000007664 blowing Methods 0.000 claims abstract description 25
- 238000009434 installation Methods 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims description 16
- 238000005034 decoration Methods 0.000 claims description 9
- 239000004973 liquid crystal related substance Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 206010034703 Perseveration Diseases 0.000 abstract description 2
- 230000006978 adaptation Effects 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract description 2
- 239000000779 smoke Substances 0.000 description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010835 comparative analysis Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009970 fire resistant effect Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/20—Control of fluid pressure characterised by the use of electric means
- G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
- G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
- G05D16/2026—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means with a plurality of throttling means
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
Abstract
The present invention relates to a kind of pressure difference TT＆C system with analog output, including pressure air blowing device, pressure difference controller, air-valve control cabinet, pressure relief device, pressure difference controller is connect with air-valve control cabinet one end, the other end of air-valve control cabinet is connect with pressure relief device, pressure difference controller is mounted on cup, aisle, air-valve control cabinet also connect with fire-fighting power supply and is the power supply of pressure difference measure and control device, the present invention can be dedicated for the accurate measurement and control of the positive pressure blast system positive pressure value of civil buildings building cup or staircase, ensure that cup is more than 30 pa pressure releases with respect to the overbottom pressure value in aisle, stop pressure release less than 25 pas, it is failure to actuate between 25 30 pas；Staircase is more than 50 pa pressure releases with respect to aisle overbottom pressure value, is less than 40 pas and stops pressure release, is failure to actuate between 40 50 pas.It avoids and diverts that industrial pressure switching accuracy is not high, and actuator is in certain point perseveration or the drawbacks of be failure to actuate.Meanwhile being designed beautifully, it is easy for installation, combined achievable tracheae and wiring secretly to bury with pre-buried 86 magazine of standard, with modern architecture perfect adaptation.
Description
Technical field
The present invention relates to the Pressure monitoring technical field of the fire-fighting positive pressure blast system of building trade more particularly to a kind of bands
The pressure difference TT＆C system of analog output.
Background technology
It is well known that when fire occurs, most of casualties is not as fire, but flue gas, with combustible
Burning generate a large amount of high-temperature flue gas, containing a large amount of imperfect combustion poisonous and harmful substances in flue gas, pass through the breathing of people
In road suction body, the life security of personnel is caused to seriously threaten.
In order to effectively inhibit fire spreading, flue gas be prevented to spread.The air outlet outlet air of positive pressure blast system can make staircase
And fire-fighting cup forms positive pressure, blocking harmful flue gas enters the fire escape of people, GB50016-2006《Fire protection design of building is advised
Model》It is proposed specification：The overbottom pressure value of the mechanic pressure blow system should be 40-50Pa in smoke proof staircase；Cup, common antechamber should be
25-30Pa；《Build Smoke prevention smoke ejector technical specification》Equally smoke proof staircase and elevator cup overbottom pressure value are clearly advised
Model：Mechanism contact type sensor should meet the pressure of aisle → cup → staircase in incremental distribution, and overbottom pressure value should be met the following requirements：
1, cup, common antechamber, the room before the fire hydrant elevator, closing refuge story（Between）Pressure difference between aisle should be 25-30Pa;
2, the pressure difference between smoke proof staircase, Smoke prevention elevator and aisle should be 40-50Pa.
If when positive pressure blast system air output and uncontrollable air supply time, normal escape route is possible to can be because of before
Room positive pressure is excessive, the serious consequence for causing fire resistant doorsets that can not open.
Presently, there are several modes for maintaining fire-fighting cups or staircase in particular pressure differential range：
1. controlling pressure air blowing positive pressure value using by-passing valve.It is the method precision highest, easy for installation, beautiful, but never one
The product of money profession realizes this function.Some units are copied mechanically and applied indiscriminately with industrial mechanical pressure sensors and are built with civilian
It builds, error is high, and cannot achieve cup or staircase compared with the pressure difference in aisle, brings severe compromise.
2. controlling pressure air blowing positive pressure value using frequency conversion fan.The method by《Civil buildings design specification》It is no
Certainly the control loop of --- -- fire-fighting equipment must not use variable-frequency governor as control loop.
3. using the positive pressure value of excess pressure valve control cup/staircase.Excess pressure valve is mechanical structure, and precision is not high, constructs
Difficulty greatly, unsightly, is easily got rusty.
Invention content
It is an object of the invention to solve drawbacks described above of the existing technology, it is proposed that a kind of pressure with analog output
Poor TT＆C system, the air pressure for monitoring smoke proof staircase, cup, common antechamber in real time, and instruction is sent out according to monitor value.
The present invention is realized using technical solution below：A kind of pressure difference TT＆C system with analog output, including
Pressure air blowing device, pressure difference controller, air-valve control cabinet, pressure relief device, the pressure difference controller and the air-valve control cabinet one
End connection, the other end of the air-valve control cabinet are connect with the pressure relief device, and the pressure difference controller is mounted on cup, walks
Road, the pressure difference controller is equipped with the first air pressure detection port, the second air pressure detects port, and air pressure acquisition pipe connects second gas
Pressure detection port, the air pressure acquisition pipe end install decoration panel, and the first air pressure of the pressure difference controller detects in port
It sets, the air-valve control cabinet also connect with fire-fighting power supply and is the pressure difference controller power supply.
Further, the air-valve control cabinet exports DC12V voltages pressure difference controller, the pressure difference controller is given to pass through letter
Number line is connected with air-valve control cabinet.
Further, the pressure air blowing device includes forced draught blower, pressure air blowing air duct, pressure air blowing mouth, described
Forced draught blower be arranged on pressure air blowing air duct top, the pressure air blowing mouth is located on the cup, and it is described before
Room is additionally provided with normally closed fire exit door.
Further, the pressure relief device includes by-passing valve and bypass pipe, and the air-valve control cabinet links with by-passing valve, institute
It is electronic split multi-clack control valve to state by-passing valve.
Further, the pressure difference controller is at least one group with the parallel way access air-valve control cabinet, the wind
Valve control cabinet on-site power acquisition simultaneously links with the by-passing valve.
Air-valve control cabinet cancel in air box it is anti-electric, fire occur when system start, forced draught blower by pressurization give
Either fire-fighting cup or common antechamber pressurize to cup for wind air duct, pressure air blowing mouth.Pressure difference controller read simultaneously low pressure and
High-pressure side barometric information, real-time comparative analysis, when draught head is more than or is less than setting value, pressure difference controller feeds back signal
Feed valve control cabinet, air-valve control cabinet are connected with by-passing valve and control the open and close of by-passing valve, and system decompression after unlatching closes
After closing will stop pressure release come achieve the purpose that cup either staircase pressure difference in 25-30 40-50 pas.
Further, the pressure difference controller is at least one group with the parallel way access air-valve control cabinet, the wind
Valve control cabinet on-site power acquisition simultaneously links with the by-passing valve.
The further pressure difference controller includes shell, and internal circuit board, decoration panel, the shell includes upper casing
Body, lower housing, the internal circuit board are arranged in the shell, and the shell sets the first air pressure acquisition hole；The in-built electrical
MCU chip is set on the plate of road, and differential pressure pickup is also set in the internal circuit board, the first air pressure is equipped at the top of the differential pressure pick-up
Port, the second air pressure detection port are detected, the first air pressure detection mouth passes through the first air pressure acquisition hole and detects air pressure；Described
Two air pressure detection mouths are connect by hose with air pressure acquisition pipe, and the decoration panel sets the second air pressure acquisition hole.
Further, it is additionally provided with relay in the internal circuit board, MCU chip, liquid crystal display, connecting terminal, refers to
Show that lamp, the internal circuit board are connected by the connecting terminal with the shell external world.
Further, integrated A/D converter is set in the MCU chip, by the collected signal of pressure difference controller and base
Conversion show that pressure difference, MCU carry out programming in logic control, compared with given threshold atmospheric pressure value after quasi- voltage value is compared
Compared with by judging the relationship of pressure difference and threshold value, to send out control signal.
Further, the indicator light includes power supply indicator, pressure release indicator light.
Further, the shell back is additionally provided with reserved metallic support embedded hole.
The method have the advantages that：
The present invention can be dedicated for the accurate measurement of the positive pressure blast system positive pressure value of civil buildings building cup or staircase
With control.Pressure difference controller precision in the present invention is high, and stability is good, will not crash or restart when air pressure changes repeatedly.Ensure
Cup is more than 30 pa pressure releases with respect to the overbottom pressure value in aisle, is less than 25 pas and stops pressure release, is failure to actuate between 25-30 pas；Staircase phase
50 pa pressure releases are more than to the overbottom pressure value in aisle, is less than 40 pas and stops pressure release, be failure to actuate between 40-50 pas.Avoid peculation industry
Not high with pressure switch precision, actuator is in certain point perseveration or the drawbacks of be failure to actuate.Meanwhile being designed beautifully, installation side
Just, achievable tracheae and wiring is combined secretly to bury with pre-buried 86 magazine of standard, with modern architecture perfect adaptation.
Description of the drawings
Fig. 1 is overall structure of the present invention.
Fig. 2 is the upper shell structural schematic diagram of pressure difference controller.
Fig. 3 is the lower housing structural schematic diagram of pressure difference controller.
Fig. 4 is pressure difference controller circuit board figure reverse structure schematic.
Specific implementation mode
1-4 is described further invention below in conjunction with the accompanying drawings.
As shown in Figure 1, Figure 3：A kind of pressure difference TT＆C system with analog output, including pressure air blowing device, pressure difference are surveyed
Device 21, air-valve control cabinet 3, pressure relief device are controlled, the pressure difference controller 21 is equipped with the first air pressure acquisition hole 214, the second air pressure is adopted
Collection hole detection low pressure and high pressure side data, the pressure difference controller 21 are connect with described 3 one end of air-valve control cabinet, the air-valve control
The other end of case 3 processed is connect with the pressure relief device, and the pressure difference controller 21 is mounted on cup 5, aisle 6, and the pressure difference is surveyed
It controls device 21 and is equipped with the first air pressure acquisition hole 214, the pressure difference controller 21 is additionally provided with the first air pressure detection mouth a or the second air pressure
Mouth b is detected, the air pressure acquisition pipe 22 meets the first air pressure detection mouth a of pressure difference controller 21 or the second air pressure detects mouth b to walking
Decoration panel 23 is installed in road 6, cup 5,22 end of air pressure acquisition pipe, and the decoration panel 23 is equipped with the second air pressure acquisition
Hole, the air-valve control cabinet 3 also connect with fire-fighting power supply and export DC12V voltages to the pressure difference controller 21；The pressure release
Device includes by-passing valve 41 and bypass pipe 42, and the air-valve control cabinet 3 links with by-passing valve 41.
The pressure air blowing device 1 includes forced draught blower 11, pressure air blowing air duct 12, pressure air blowing mouth 13, described to add
Force feed wind turbine 11 is arranged on 12 top of pressure air blowing air duct, and the pressure air blowing mouth 13 is located on the cup 5, and institute
It states cup 5 and is additionally provided with normally closed fire exit door 14.
Air-valve control cabinet 3 is cancelled anti-electric in air box, and system starts when fire occurs, and forced draught blower 11 passes through pressurization
Supply air duct 12, pressure air blowing mouth 13 give cup either fire-fighting cup or common antechamber pressurization.Pressure difference controller 21 is read simultaneously
Take low pressure and high-pressure side barometric information, real-time comparative analysis, when draught head is more than or when less than setting value, pressure difference controller 21
By signal feedback feed valve control cabinet 3, air-valve control cabinet 3 is connected with by-passing valve 41 and controls the open and close of by-passing valve, opens
Rear system decompression is opened, reaches cup either mesh of the staircase pressure difference in 25-30 40-50 pas by pressure release is stopped after closing
, filled arrows indicate that normal air-supply Airflow moves direction in figure, and modest arrow indicates that by-passing valve opens air-flow direction.
As shown in Figure 2, Figure 4 shows：Pressure difference controller 21 includes shell 211, internal circuit board 212, decoration panel 23, the shell
Body is equipped with the first air pressure acquisition hole 214, and the shell includes upper shell, lower housing, and the upper shell is equipped with display screen
218, power supply indicator 219, pressure release indicator light 220 are equipped with；219 bright expression pressure difference controller power supply of power supply indicator is normal, lets out
The bright signal for indicating differential pressure controller and having issued pressure release of pressure indicator light 220,211 back of the shell is additionally provided with reserved metallic support
Embedded hole.
The internal circuit board 212 is arranged in the shell 211, and the shell 211 sets the first air pressure acquisition hole 214；
MCU chip is set in the internal circuit board 212, differential pressure pickup 215 is also set in the internal circuit board 212, and the differential pressure passes
215 top of sensor is equipped with the first air pressure detection mouth 216, the second air pressure detection mouth 217, and the first air pressure detection mouth 216 passes through
Detect air pressure in the first air pressure acquisition hole 214；The second air pressure detection mouth 217 and the first air pressure detection mouth a or the second air pressure are examined
It surveys mouth b to connect by air pressure acquisition pipe 22, detects aisle air pressure.
The course of work：
When fire occurs, forced draught blower 11 starts, and the pressure air blowing mouth 13 fire bed and adjacent fire bed most two layers connects
It is opened to cigarette sense signal, by-passing valve 41 is closed, and forced draught blower 11 gives fire bed and most by pressure air blowing road 12
More two layers cups 5 that adjacent fire bed are blown.5 air pressure of cup is increased, and is blocked the entrance of harmful smoke, is created fire fighter
With the safe transit space of escape personnel.But the air pressure of cup 5 cannot be excessive, it is excessive will influence fire resistant doorsets 14 or other
It is normally-open.Pressure difference controller 21 starts with forced draught blower 11 and is started, and monitors the draught head in aisle 6 and cup 5 in real time,
When 5 air pressure of cup is more than 30 pa than 6 air pressure of aisle, air-valve control cabinet 3, the linkage by-passing valve of air-valve control cabinet 3 are delivered a signal to
41 open pressure release, and the air pressure of cup 5 reduces；When 5 air pressure of cup is less than 25 pa than 6 air pressure of aisle, pressure difference controller 21 transmits
Signal feed valve control cabinet 3, the linkage by-passing valve 41 of air-valve control cabinet 3 close and stop pressure release, and 5 air pressure of cup is increased.Work as cup
When air pressure is between 25-30 pas, pressure difference controller 21 does not send out any instruction, and by-passing valve 41 is failure to actuate.
Claims (10)
1. a kind of pressure difference TT＆C system with analog output, including pressure air blowing device, pressure difference controller, air-valve control cabinet,
Pressure relief device, the pressure difference controller are connect with air-valve control cabinet one end, the other end of the air-valve control cabinet with it is described
Pressure relief device connects, and the pressure difference controller is mounted on cup, aisle, and the pressure difference controller is equipped with the first air pressure test side
Mouth, the second air pressure detect port, and air pressure acquisition pipe connects the second air pressure detection port, the air pressure acquisition pipe end installation dress
First air pressure of decoration panel, the pressure difference controller detects built in port, and the air-valve control cabinet is also connect simultaneously with fire-fighting power supply
It powers for the pressure difference controller.
2. the pressure difference TT＆C system with analog output according to claim 1, it is characterised in that：The air-valve control cabinet is defeated
Going out DC12V voltages gives pressure difference controller, the pressure difference controller to be connected with air-valve control cabinet by signal wire.
3. the pressure difference TT＆C system with analog output according to claim 1, it is characterised in that：The pressure air blowing device
Including forced draught blower, pressure air blowing air duct, pressure air blowing mouth, the forced draught blower is arranged in the pressure air blowing air duct top
End, the pressure air blowing mouth is located on the cup, and the cup is additionally provided with normally closed fire exit door.
4. the pressure difference TT＆C system with analog output according to claim 1, it is characterised in that：The pressure relief device includes
By-passing valve and bypass pipe, the air-valve control cabinet link with by-passing valve, and the by-passing valve is electronic split multi-clack control valve.
5. the pressure difference TT＆C system with analog output according to claim 1, it is characterised in that：The pressure difference controller is extremely
It is less one group and the air-valve control cabinet is accessed with parallel way, the air-valve control cabinet on-site power acquisition simultaneously joins with the by-passing valve
It is dynamic.
6. the pressure difference TT＆C system with analog output according to claim 1, it is characterised in that：The pressure difference controller packet
Shell, internal circuit board, decoration panel are included, the shell includes upper shell, lower housing, and the internal circuit board is arranged described
In shell, the shell sets the first air pressure acquisition hole；MCU chip is set in the internal circuit board, is gone back in the internal circuit board
If differential pressure pickup, the differential pressure pick-up top is equipped with the first air pressure detection port, the second air pressure detects port, described first
Air pressure detects port and detects air pressure by the first air pressure acquisition hole；The second air pressure detection mouth passes through hose and air pressure acquisition pipe
Connection, the decoration panel set the second air pressure acquisition hole.
7. the pressure difference TT＆C system with analog output according to claim 6, it is characterised in that：In the internal circuit board
It is additionally provided with relay, MCU chip, liquid crystal display, connecting terminal, indicator light, the internal circuit board passes through the terminals
It is sub to be connected with the shell external world.
8. the pressure difference TT＆C system with analog output according to claim 7, it is characterised in that：It is set in the MCU chip
Integrated A/D converter converts after being compared the collected signal of pressure difference controller with reference voltage value and obtains pressure difference,
MCU carries out programming in logic control, is compared with given threshold atmospheric pressure value, by judging the relationship of pressure difference and threshold value, to send out
Go out to control signal.
9. the pressure difference TT＆C system with analog output according to claim 8, it is characterised in that：The indicator light includes electricity
Source indicator light, pressure release indicator light.
10. the pressure difference TT＆C system with analog output according to claim 1, it is characterised in that：The shell back is also
Equipped with reserved metallic support embedded hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810769932.0A CN108572673A (en) | 2018-07-13 | 2018-07-13 | A kind of pressure difference TT＆C system with analog output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810769932.0A CN108572673A (en) | 2018-07-13 | 2018-07-13 | A kind of pressure difference TT＆C system with analog output |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108572673A true CN108572673A (en) | 2018-09-25 |
Family
ID=63571606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810769932.0A Pending CN108572673A (en) | 2018-07-13 | 2018-07-13 | A kind of pressure difference TT＆C system with analog output |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108572673A (en) |
Cited By (4)
| 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 |
| 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 |
| 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 |
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| CN105240983A (en) * | 2015-11-09 | 2016-01-13 | 苏州鸣森控制系统有限公司 | Positive pressure air supply system and control method |
| CN206235845U (en) * | 2016-11-23 | 2017-06-09 | 大象建筑设计有限公司 | A kind of new pressure difference electric control system |
| CN107102656A (en) * | 2017-04-28 | 2017-08-29 | 佛山众传感仪器有限公司 | Differential pressure controller, the apparatus and system of belt switch amount output |
| CN206710908U (en) * | 2017-04-28 | 2017-12-05 | 佛山一众传感仪器有限公司 | Forced draft differential pressure controller |
| CN206710843U (en) * | 2017-04-28 | 2017-12-05 | 佛山一众传感仪器有限公司 | The pressure difference control system of belt switch amount output |
| CN208444213U (en) * | 2018-07-13 | 2019-01-29 | 青岛蓝锐电子科技有限公司 | A kind of pressure difference TT&C system with analog output |
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| CN202328674U (en) * | 2011-11-02 | 2012-07-11 | 唐山市规划建筑设计研究院 | Air supply system for building fire protection |
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Cited By (4)
| 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 |
| 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 |
| 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 |
| 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 |
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