CN207990874U - Pressure difference control device for building smoke control system - Google Patents
Pressure difference control device for building smoke control system Download PDFInfo
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- CN207990874U CN207990874U CN201820052401.5U CN201820052401U CN207990874U CN 207990874 U CN207990874 U CN 207990874U CN 201820052401 U CN201820052401 U CN 201820052401U CN 207990874 U CN207990874 U CN 207990874U
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Abstract
The utility model provides a kind of pressure difference control device for building smoke control system, and pressure difference control device includes pressure air blowing supervisor, at least two pressure air blowing branch pipes, electronic bypass pressure relief valve, differential pressure pickup and controller；One end of pressure air blowing branch pipe is connected with pressure air blowing supervisor's perforation connection, the other end with Smoke prevention position perforation in building；Each pressure air blowing branch pipe is equipped with electronic bypass pressure relief valve；Differential pressure pickup setting is corresponded under construction in Smoke prevention position；The controller is used to receive the air pressure difference data in the Smoke prevention position that the differential pressure pickup is sent, and controls the open and close of the electronic bypass pressure relief valve.The utility model overcomes defect existing for existing electronic bypass pressure relief valve differential pressure control technique, while realizing in the case where excess pressure valve is not applicable, carries out pressure difference control to the Smoke prevention position, meets the requirement of NFA specification.
Description
Technical field
The utility model is related to build Smoke prevention control technology field, more particularly to a kind of pressure difference for building smoke control system
Control device.
Background technology
Currently, according to the requirement of NFA specification, the cup between staircase cup, Fire lift is needed in architectural engineering
Or common antechamber and the Smoke preventions such as smoke proof staircase and enclosed stairwell position carry out Smoke Control.Due to architectural plane and stand
The limitation in face, and the considering for factors such as safety when building is more than certain altitude, these positions generally can not use certainly
The Smoke prevention form so discharged fume needs that the mechanic pressure blow system is arranged.Now, as the development of Form of Architecture, height, function is more
Sample, the mechanic pressure blow system are widely used in all kinds of buildings as the smoke abatement facility in fire-fighting system, the especially high-rise people
With in building.NFA code requirement, in the case where the evacuation fire resistant doorsets of extra exit are closed, the mechanic pressure blow system
Must assure that the pressure value of smoke proof staircase and enclosed stairwell is 40Pa-50Pa, between smoke proof staircase cup, Fire lift before
Room or common antechamber pressure value are 25Pa-30Pa；When egress door is opened, the wind speed by door opening is 0.7m/s-1.2m/s.When
When fire resistant doorsets are closed, it is ensured that the computational methods for the pressurized supply air rate that Smoke prevention position relevant pressure value meets code requirement are known as gap
Method；When fire resistant doorsets are opened, it is ensured that the computational methods that critical air velocity meets the pressurized supply air rate of NFA code requirement are known as
Critical air velocity method；The higher value for taking two kinds of computational methods takes calculated value and table compared with tabular value as defined in NFA specification
The higher value of value, as design pressurized supply air rate.The pressurized supply air rate usually calculated by critical air velocity method is more than based on the method for gap
The pressurized supply air rate of calculation.Under the premise of meeting critical air velocity, when the fire resistant doorsets of extra exit are closed, effectively let out if not taking
Pressure measure is provided with cup or common antechamber, Yi Jifang between the smoke proof staircase cup of the mechanic pressure blow system, Fire lift
The pressure of cigarette staircase and enclosed stairwell will occur more than the phenomenon that NFA specification limit value.
In engineering, cup or common antechamber and Smoke prevention between smoke proof staircase cup, Fire lift are typically now used
The combination that mechanical excess pressure valve and fire resisting damper are installed on the partition wall at the Smoke preventions such as staircase and enclosed stairwell position is let out except more
Remaining air quantity, it is ensured that superpressure phenomenon does not occur for pressurized portion, while meeting fire protection requirement.But in actual design and construction and installation
Cheng Zhong faces following problem：1) it when excess pressure valve is when furred ceiling top is installed, needs that manhole is arranged on furred ceiling.To ensure to surpass
The air quantity of pressure is let out to aisle rather than furred ceiling, and manhole need to be designed to louvered or grating type.Manhole is vertical in furred ceiling
The electromechanical pipeline that view field must not have the maintenance of any influence excess pressure valve and normally open and close.For aisle, narrow and electromechanical pipeline exists
In the furred ceiling of aisle there is problem in the project of intensive arrangement, excess pressure valve by this arrangement.2) when excess pressure valve is when furred ceiling lower part is installed, when
Excess pressure valve specification is larger, and when furred ceiling clear height is smaller, and the unlatching of excess pressure valve will influence safety evacuation, cause to evacuate
Personnel are injured because colliding the valve plate of excess pressure valve in journey.3) for built-in more demanding place, the setting of excess pressure valve often shadow
Ring the beauty of interior decoration.4) it is to let out except extra air quantity, staircase needs that multiple excess pressure valves are arranged, and smoke proof staircase cup disappears
Every layer of anti-escalator cup or common antechamber are required to setting excess pressure valve.Meanwhile to meet fire protection requirement, each excess pressure valve is both needed to
A fire resisting damper is configured, initial cost is larger.5) part fire-fighting examines department, before between smoke proof staircase cup, Fire lift
On the partition wall of room or common antechamber and staircase other than fire resistant doorsets, separately open up door, window, hole way, do not approve.
Another tradition pressure difference control device is that an electricity controlled by differential pressure pickup is arranged on pressure air blowing supervisor
Dynamic bypass pressure relief valve come realize between smoke proof staircase cup, Fire lift cup or common antechamber and smoke proof staircase and
The pressure difference at the Smoke preventions such as enclosed stairwell position controls.Wherein, when only carrying out pressure air blowing to a stair, or to smoke prevention staircase
Between cup or common antechamber carry out pressure air blowing and only open 1 layer of pressure air blowing air port when catching fire between cup, Fire lift system,
The differential pressure pickup that the device may be used controls the action of electronic bypass pressure relief valve and is sent to meet the pressurization at above-mentioned Smoke prevention position
Air quantity and differential pressure requirements.But above and below ground staircase is shared and shares pressure air blowing between pressurization air supply system, cantilever stair
System and while catching fire, open simultaneously 2 layers (NFA code requirement, 20 layers of system burden ＜) or 3 layers of (NFA specification
It is required that system burden >=20 layer) smoke proof staircase cup, between Fire lift the pressure air blowing air port of cup or common antechamber plus
Force feed wind system cannot meet requirement using the device, because electronic bypass pressure relief valve simultaneously can only be according to reception
The position air pressure difference data action that the differential pressure pickup at the Smoke prevention position arrived measures, meets the pressure difference at the Smoke prevention position
Control requires, and if when also there is pressure difference demand for control at another Smoke prevention position at this time, electronic bypass pressure relief valve will be cannot get
Adjusting control.Such as：When the 2nd layer of common antechamber fire resistant doorsets are opened and the 3rd layer of common antechamber fire resistant doorsets are closed, to ensure the 2nd
The critical air velocity of layer common antechamber needs the 2nd layer of differential pressure pickup to control electronic bypass pressure relief valve and is moved toward the stroke closed
Make, and the 3rd layer of common antechamber Men Yinwei unlatching will appear superpressure phenomenon, and the 3rd layer of differential pressure pickup is needed to control electronic bypass
Pressure relief valve is toward the stroke action opened, and electronic bypass pressure relief valve can only act simultaneously according to a signal, meets the 2nd
It will cannot meet the 3rd layer of requirement while the requirement of layer, vice versa, and pressure difference control system controls mistake because attending to one thing and lose sight of another
Effect.
Utility model content
The technical problems to be solved in the utility model is to overcome existing pressure difference control system to pass through in pressure air blowing
One electronic bypass pressure relief valve by differential pressure pickup control is set on supervisor to realize smoke proof staircase cup, Fire lift
Between cup or the pressure difference at the Smoke preventions such as common antechamber and smoke proof staircase and enclosed stairwell position control, due to electronic bypass
The Smoke prevention position air pressure difference data that pressure relief valve can only be measured according to the differential pressure pickup at the Smoke prevention position received
Action, the pressure difference control for meeting the Smoke prevention position require, and if when also there is pressure difference demand for control at another Smoke prevention position at this time, will
It cannot get the adjusting control of electronic bypass pressure relief valve, to easily bring the defect for attending to one thing and lose sight of another and controlling failure, this practicality new
Type is designed to provide a kind of pressure difference control device for building smoke control system.
The utility model is to solve above-mentioned technical problem by following technical proposals：
The utility model provides a kind of pressure difference control device for building smoke control system, and the pressure difference control device includes
Pressure air blowing supervisor, at least two pressure air blowing branch pipes, electronic bypass pressure relief valve, differential pressure pickup and controller；
Each Smoke prevention position corresponds to a pressure air blowing branch pipe, one end of the pressure air blowing branch pipe respectively in building
It is responsible for perforation connection with the pressure air blowing, the other end is connected with the corresponding Smoke prevention position perforation；
Each pressure air blowing branch pipe is equipped with the electronic bypass pressure relief valve, for control the Smoke prevention position with
Air pressure difference between adjacent aisle region；
Differential pressure pickup setting is under construction in the Smoke prevention position, for obtain the Smoke prevention position with it is adjacent walk
Air pressure difference data between road region；
The electronic bypass pressure relief valve and the differential pressure pickup are electrically connected with the controller respectively；
The controller is used to receive the air pressure difference data in the Smoke prevention position that the differential pressure pickup is sent, and
The open and close of the electronic bypass pressure relief valve are controlled according to the air pressure difference data.
Preferably, the Smoke prevention position includes cup or common antechamber between smoke proof staircase cup, Fire lift；
Cup or the common antechamber pair between the smoke proof staircase cup, the Fire lift of contiguous floors in building
Answer the different pressure air blowing branch pipes.
Preferably, the Smoke prevention position includes smoke proof staircase or enclosed stairwell；
The different smoke proof staircases or the enclosed stairwell correspond to the different pressure air blowing branch pipes.
Preferably, the pressure difference control device includes two pressure air blowing branch pipes, the Smoke prevention of the odd floors of building
Cup or common antechamber correspond to a pressure air blowing in two pressure air blowing branch pipes between staircase cup, Fire lift
Branch pipe, between the smoke proof staircase cups of the even floors of building, Fire lift cup or common antechamber correspond to another it is described plus
Press blowpipe；
Or, the pressure difference control device includes three pressure air blowing branch pipes, respectively the first pressure air blowing branch pipe, the
Two pressure air blowing branch pipes and third pressure air blowing branch pipe, between 3i+1 layers of smoke proof staircase cup of building, Fire lift before
Room or common antechamber correspond to the first pressure air blowing branch pipe, 3i+2 layers of smoke proof staircase cup, the Fire lift of building
Between cup or common antechamber correspond to the second pressure air blowing branch pipe, 3i+3 layers of smoke proof staircase cup of building, fire-fighting
Escalator cup or common antechamber correspond to third pressure air blowing branch pipe, and i is integer.
Preferably, the pressure difference control device includes two pressure air blowing branch pipes；
A pressure air blowing branch pipe in two pressure air blowing branch pipes and the smoke proof staircase or the envelope
The staircase closed in staircase is correspondingly arranged, another described pressure air blowing branch pipe in two pressure air blowing branch pipes
It is correspondingly arranged with another staircase in the smoke proof staircase or the enclosed stairwell.
Preferably, building in cantilever stair between a staircase correspond to two pressure air blowing branch pipes in one
The pressure air blowing branch pipe, another staircase between the cantilever stair of building correspond to another in two pressure air blowing branch pipes
One pressure air blowing branch pipe；
Or, the ground staircase in building corresponds to a pressure air blowing branch in two pressure air blowing branch pipes
Pipe, the underground staircase of building correspond to another described pressure air blowing branch pipe in two pressure air blowing branch pipes.
Preferably, the pressure difference control device further includes pressure air blowing wind turbine；
The pressure air blowing wind turbine and pressure air blowing supervisor's perforation connection, for being sent to the Smoke prevention position pressurization
Wind.
Preferably, the Smoke prevention position in building is equipped with pressure air blowing air port；
The pressure air blowing branch pipe passes through the pressure air blowing air port and the smoke proof staircase cup, described in building
Cup or common antechamber perforation connection between Fire lift；
The pressure air blowing that cup or the common antechamber are equipped between the smoke proof staircase cup, the Fire lift
Air port is closed-state inlet.
Preferably, the smoke proof staircase and enclosed stairwell in the building are equipped with pressure air blowing air port；
The pressure air blowing branch pipe passes through the pressure air blowing air port and the corresponding smoke proof staircase or institute in building
State enclosed stairwell perforation connection；
The pressure air blowing air port that the smoke proof staircase and the enclosed stairwell are equipped with is self hang down type air grille.
Preferably, when the pressure air blowing branch pipe is equipped with wind check-valve, the smoke proof staircase and the closing building
The pressure air blowing air port between ladder is normally opened air grille or normally opened air grille.
The positive effect of the utility model is：
The utility model is by the way that by one end of each pressure air blowing branch pipe and pressure air blowing supervisor's perforation connection, the other end divides
It is not connected with Smoke prevention position perforation in building；Wherein, it cup or is shared between the smoke proof staircase cup, Fire lift of contiguous floors
Cup corresponds to different pressure air blowing branch pipes；Different staircases corresponds to different pressure air blowing branch pipes；Meanwhile electronic bypass is let out
Pressure valve is separately positioned on each pressure air blowing branch pipe, receives what different Smoke prevention positions differential pressure pickup was sent by controller
Air pressure difference data control electronic bypass pressure relief valve aperture and increase or reduce, and then each pressure air blowing branch pipe of independent control
The air quantity of output, the pressure difference control device to overcome existing building fume-resisting system are applied in smoke proof staircase cup, fire-fighting
Escalator cup or common antechamber, and while sharing between the above and below ground staircase of pressure air blowing wind turbine, cantilever stair, cannot be only
The defect of the pressure in the vertical each Smoke prevention region of control, realizes in the case of not applicable excess pressure valve, is carried out to above-mentioned Smoke prevention region
Independent pressure difference control, meets the requirement of NFA specification.
Description of the drawings
Fig. 1 is the first structure frame of the pressure difference control device for building smoke control system of the utility model preferred embodiment
Figure；
Fig. 2 is the second structural frames of the pressure difference control device for building smoke control system of the utility model preferred embodiment
Figure；
Fig. 3 is that the first structure of the pressure difference control device for building smoke control system of the utility model preferred embodiment is shown
It is intended to；
Fig. 4 is that the second structure of the pressure difference control device for building smoke control system of the utility model preferred embodiment is shown
It is intended to；
Fig. 5 is that the third structure of the pressure difference control device for building smoke control system of the utility model preferred embodiment is shown
It is intended to.
Specific implementation mode
A preferred embodiment is named, and completely illustrates the utility model in conjunction with attached drawing to become apparent from.
Embodiment 1
As depicted in figs. 1 and 2, the pressure difference control device for building smoke control system of the present embodiment includes pressure air blowing master
Pipe 1, at least two pressure air blowing branch pipes 2, electronic bypass pressure relief valve 3, differential pressure pickup 4, pressure air blowing wind turbine 5 and controller 6.
Each Smoke prevention position corresponds to a pressure air blowing branch pipe 2 respectively in building.The one of the pressure air blowing branch pipe 2
End is connected with 1 perforation of pressure air blowing supervisor, and other end Smoke prevention position perforation corresponding with building connects.
Wherein, the Smoke prevention position includes cup or common antechamber between smoke proof staircase cup, Fire lift；Contiguous floors
Smoke proof staircase cup, cup or common antechamber correspond to the different pressure air blowing branch pipes 2 between Fire lift.
Specifically, as shown in Figure 2 and Figure 4, when the pressure difference control device includes two pressure air blowing branch pipes 2,
Cup or common antechamber correspond to two pressure air blowing branch between the smoke proof staircase cups of the odd floors of building, Fire lift
A pressure air blowing branch pipe 2 in pipe 2, cup or conjunction between the smoke proof staircase cups of the even floors of building, Fire lift
Another pressure air blowing branch pipe 2 is corresponded to cup；Or, as shown in figures 1 and 3, the pressure difference control device includes three
The pressure air blowing branch pipe 2, respectively the first pressure air blowing branch pipe, the second pressure air blowing branch pipe and third pressure air blowing branch pipe,
3i+1 layers of smoke proof staircase cup of building, cup or common antechamber correspond to the first pressure air blowing branch between Fire lift
Pipe, cup or common antechamber, which correspond to described second and pressurize, between 3i+2 layer of smoke proof staircase cup of building, Fire lift send
Wind branch pipe, cup or common antechamber correspond to the third and add between 3i+3 layers of smoke proof staircase cup of building, Fire lift
Blowpipe is pressed, i is integer.
The Smoke prevention position further includes smoke proof staircase staircase or enclosed stairwell；Wherein, different staircases correspond to not
The same pressure air blowing branch pipe.
As shown in Figure 2 and Figure 5, when the pressure difference control device include two pressure air blowing branch pipes 2, described in two plus
Press a pressure air blowing branch pipe 2 in blowpipe 2 and one in the smoke proof staircase or the enclosed stairwell
Staircase is correspondingly arranged, another described pressure air blowing branch pipe 2 in two pressure air blowing branch pipes 2 and the smoke prevention staircase
Between or the enclosed stairwell in another staircase be correspondingly arranged.
Specifically, a staircase between the cantilever stair of building corresponds to an institute in two pressure air blowing branch pipes 2
Pressure air blowing branch pipe 2 is stated, another staircase between the cantilever stair of building corresponds to another pressure air blowing branch pipe 2；Or,
As shown in Figure 2 and Figure 4, the ground staircase of building corresponds to a pressure air blowing branch in two pressure air blowing branch pipes 2
The underground staircase of pipe 2, building corresponds to another pressure air blowing branch pipe 2.
The pressure air blowing branch pipe 2 is equipped with the electronic bypass pressure relief valve 3, for controlling the pressure air blowing branch pipe
The air quantity of 2 outputs.
The differential pressure pickup 4 is arranged in corresponding Smoke prevention position under construction, for obtaining the Smoke prevention position and phase
Air pressure difference data between adjacent aisle region.
The pressure air blowing wind turbine 5 is connected with 1 perforation of pressure air blowing supervisor, for blowing to Smoke prevention position pressurization.
The electronic bypass pressure relief valve 3 and the differential pressure pickup 4 are electrically connected with the controller 6 respectively；The control
Device 6 processed is used to receive the air pressure difference data of the transmission of the differential pressure pickup 4, controls the electronic bypass pressure relief valve 3
Open and close.
Wherein, the smoke proof staircase cup in the building, cup or common antechamber are equipped with pressure air blowing between Fire lift
Air port 8；
The pressure air blowing branch pipe 2 passes through the pressure air blowing air port 8 and smoke proof staircase cup, the fire-fighting electricity in building
Cup or common antechamber perforation connection between ladder；
The pressure air blowing air port 8 that cup or common antechamber are equipped between the smoke proof staircase cup, Fire lift is
Closed-state inlet when catching fire, is controlled by fire protection control center and is opened.
Wherein, the smoke proof staircase in the building or enclosed stairwell are equipped with pressure air blowing air port 8；
The pressure air blowing branch pipe 2 passes through the pressure air blowing air port 8 and corresponding smoke proof staircase or closing in building
Staircase perforation connection.
When the other end of the pressure air blowing branch pipe 2 corresponds to the staircase perforation connection of floor with building, the pressure
Poor control device further includes wind check-valve 7；
The wind check-valve 7 is arranged on the pressure air blowing branch pipe 2；
Specifically, when the pressure air blowing branch pipe 2 is equipped with wind check-valve 7, the pressure air blowing that staircase is equipped with
Air port 8 is normally opened air grille or normally opened air grille；
When being not provided with wind check-valve 7 on the pressure air blowing branch pipe 2, the pressure air blowing air port 8 that staircase is equipped with
For self hang down type air grille.
(20≤number of floor levels≤32) as shown in Figure 3, when needing the cup between smoke proof staircase cup, Fire lift or share
When cup carries out pressure air blowing, by fire protection control center while before opening between the smoke proof staircase cup of 3 floors, Fire lift
Room or the pressure air blowing air port 8 of common antechamber, each pressure air blowing air port 8 are respectively connected to different pressure air blowing branch
Pipe 2.When cup between any smoke proof staircase cup, Fire lift or common antechamber superpressure, it is arranged at the superpressure Smoke prevention position
The corresponding Smoke prevention position of the control of the differential pressure pickup 4 the pressure air blowing branch pipe 2 on the electronic bypass relief valve
Door 3 releases the pressure air blowing air quantity that a part of pressure air blowing wind turbine 5 provides toward the direction action opened；Work as smoke prevention staircase
Between between cup, Fire lift the door of cup or common antechamber open, need keep critical air velocity when (when fire-fighting cup decompression), if
It sets on the pressure air blowing branch pipe 2 at the corresponding Smoke prevention position of the control of the differential pressure pickup 4 at the superpressure Smoke prevention position
The electronic bypass pressure relief valve 3 is toward the direction action closed, the pressure air blowing air quantity master for making the pressure air blowing wind turbine 5 provide
It is sent into above-mentioned Smoke prevention position.The electronic bypass pressure relief valve 3 on each pressure air blowing branch pipe 2 operates independently of each other,
It is independent of each other.
(number of floor levels ＜ 20) as shown in Figure 4, local Shangdi shared between going downstairs the pressure air blowing wind turbine 5 carry out pressurization give
When wind, the pressure air blowing air port 8 of above and below ground staircase is respectively connected to the pressure air blowing branch pipe of corresponding above and below ground
2.When superpressure occurs for any staircase of above and below ground, the corresponding pressure air blowing of the control of the differential pressure pickup 4
The electronic bypass pressure relief valve 3 on branch pipe 2 releases a part of pressure air blowing wind turbine 5 and carries toward the direction action opened
The air quantity of confession；When above and below ground any staircase door open, need keep critical air velocity when (when staircase decompression),
It is arranged on the pressure air blowing branch pipe 2 at the corresponding Smoke prevention position of the control of the differential pressure pickup 4 at the superpressure Smoke prevention position
The electronic bypass pressure relief valve 3 toward the direction action closed, the pressure air blowing air quantity for making the pressure air blowing wind turbine 5 provide
Mainly it is sent into above-mentioned Smoke prevention position.The electronic bypass pressure relief valve 3 on each pressure air blowing branch pipe 2 is transported independently of each other
Make, is independent of each other.
(number of floor levels ＜ 20) as shown in Figure 5 carries out pressure air blowing when sharing the pressure air blowing wind turbine 5 between cantilever stair
When, the pressure air blowing air port 8 of each staircase is respectively connected to the pressure air blowing branch pipe 2 of each staircase.When any
When superpressure occurs for one staircase, the electronic side on the corresponding pressure air blowing branch pipe 2 of the control of the differential pressure pickup 4
Relief valve door 3 releases the air quantity that a part of pressure air blowing wind turbine 5 provides toward the direction action opened；Work as above and below ground
Any staircase door open, need keep critical air velocity when (when staircase decompression), be arranged in the superpressure Smoke prevention portion
The electronic bypass pressure release on the pressure air blowing branch pipe 2 at the corresponding Smoke prevention position of the control of the differential pressure pickup 4 of position
Valve 3 makes the pressure air blowing air quantity that the pressure air blowing wind turbine 5 provides mainly be sent into above-mentioned Smoke prevention portion toward the direction action closed
Position.The electronic bypass pressure relief valve 3 on each pressure air blowing branch pipe 2 operates independently of each other, is independent of each other.
The present embodiment is connected by the way that 1 perforation is responsible in one end of each pressure air blowing branch pipe 2 and the pressure air blowing,
Other end Smoke prevention corresponding with building position perforation connection respectively；Wherein, the contiguous floors of the pressure air blowing wind turbine 5 are shared
Smoke proof staircase cup, cup or common antechamber correspond to the different pressure air blowing branch pipes 2 between Fire lift；It shares described
The different staircases of pressure air blowing wind turbine 5 correspond to the different pressure air blowing branch pipes 2；Meanwhile the electronic bypass relief valve
Door 3 is separately positioned on each pressure air blowing branch pipe 2, to control the air quantity that the pressure air blowing branch pipe 2 exports, then is passed through
The controller 6 receives the air pressure difference data of the transmission of the differential pressure pickup 4, control the electronic bypass pressure relief valve 3 into
Row pressure discharge operations, the pressure difference control device to overcome existing building fume-resisting system are applied in smoke proof staircase cup, fire-fighting
Escalator cup or common antechamber, and while sharing between the above and below ground staircase of pressure air blowing wind turbine, cantilever stair, cannot be only
The defect of the pressure in the vertical each Smoke prevention region of control, realizes in the case of not applicable excess pressure valve, is carried out to above-mentioned Smoke prevention region
Independent pressure difference control, meets the requirement of NFA specification.
Although the foregoing describe specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
These are merely examples, and the scope of protection of the utility model is defined by the appended claims.Those skilled in the art
Member can make these embodiments numerous variations or repair under the premise of without departing substantially from the principles of the present invention and essence
Change, but these change and modification each fall within the scope of protection of the utility model.
Claims (10)
1. a kind of pressure difference control device for building smoke control system, which is characterized in that the pressure difference control device includes pressurization
Air-supply supervisor, at least two pressure air blowing branch pipes, electronic bypass pressure relief valve, differential pressure pickup and controller；
Each Smoke prevention position corresponds to a pressure air blowing branch pipe, one end of the pressure air blowing branch pipe and institute respectively in building
Pressure air blowing supervisor's perforation connection is stated, the other end is connected with the corresponding Smoke prevention position perforation；
Each pressure air blowing branch pipe is equipped with the electronic bypass pressure relief valve, for control the Smoke prevention position with it is adjacent
Air pressure difference between the region of aisle；
The differential pressure pickup is arranged in the Smoke prevention position under construction, for obtaining the Smoke prevention position and adjacent aisle area
Air pressure difference data between domain；
The electronic bypass pressure relief valve and the differential pressure pickup are electrically connected with the controller respectively；
Air pressure difference data in the Smoke prevention position of the controller for receiving the differential pressure pickup transmission, and according to
The air pressure difference data control the open and close of the electronic bypass pressure relief valve.
2. being used for the pressure difference control device of building smoke control system as described in claim 1, which is characterized in that the Smoke prevention position
Including cup or common antechamber between smoke proof staircase cup, Fire lift；
Cup or the common antechamber correspond to not between the smoke proof staircase cup, the Fire lift of contiguous floors in building
The same pressure air blowing branch pipe.
3. being used for the pressure difference control device of building smoke control system as described in claim 1, which is characterized in that the Smoke prevention position
Including smoke proof staircase or enclosed stairwell；
The different smoke proof staircases or the enclosed stairwell correspond to the different pressure air blowing branch pipes.
4. being used for the pressure difference control device of building smoke control system as claimed in claim 2, which is characterized in that the pressure difference control
Device includes two pressure air blowing branch pipes, between the smoke proof staircase cups of the odd floors of building, Fire lift cup or
Common antechamber corresponds to a pressure air blowing branch pipe in two pressure air blowing branch pipes, the Smoke prevention building of the even floors of building
Cup or common antechamber correspond to another pressure air blowing branch pipe between cup, Fire lift between ladder；
Or, the pressure difference control device includes three pressure air blowing branch pipes, respectively the first pressure air blowing branch pipe, second add
Press blowpipe and third pressure air blowing branch pipe, between 3i+1 layers of smoke proof staircase cup of building, Fire lift cup or
Common antechamber corresponds to the first pressure air blowing branch pipe, between 3i+2 layers of smoke proof staircase cup of building, Fire lift before
Room or common antechamber correspond to the second pressure air blowing branch pipe, 3i+3 layers of smoke proof staircase cup, the Fire lift of building
Between cup or common antechamber correspond to third pressure air blowing branch pipe, i is integer.
5. being used for the pressure difference control device of building smoke control system as claimed in claim 3, which is characterized in that the pressure difference control
Device includes two pressure air blowing branch pipes；
A pressure air blowing branch pipe in two pressure air blowing branch pipes and the smoke proof staircase or the closing building
A staircase between ladder is correspondingly arranged, another described pressure air blowing branch pipe in two pressure air blowing branch pipes and institute
Another staircase stated in smoke proof staircase or the enclosed stairwell is correspondingly arranged.
6. being used for the pressure difference control device of building smoke control system as claimed in claim 5, which is characterized in that the scissors in building
One staircase of staircase corresponds to a pressure air blowing branch pipe in two pressure air blowing branch pipes, the scissors of building
Another staircase of staircase corresponds to another described pressure air blowing branch pipe in two pressure air blowing branch pipes；
Or, the ground staircase in building corresponds to a pressure air blowing branch pipe in two pressure air blowing branch pipes, build
The underground staircase built corresponds to another described pressure air blowing branch pipe in two pressure air blowing branch pipes.
7. being used for the pressure difference control device of building smoke control system as described in claim 1, which is characterized in that the pressure difference control
Device further includes pressure air blowing wind turbine；
The pressure air blowing wind turbine and pressure air blowing supervisor's perforation connection, for blowing to the Smoke prevention position pressurization.
8. being used for the pressure difference control device of building smoke control system as claimed in claim 2, which is characterized in that described in building
Smoke prevention position is equipped with pressure air blowing air port；
The pressure air blowing branch pipe passes through the pressure air blowing air port and the smoke proof staircase cup in building, the fire-fighting
Escalator cup or common antechamber perforation connection；
The pressure air blowing air port that cup or the common antechamber are equipped between the smoke proof staircase cup, the Fire lift
For closed-state inlet.
9. being used for the pressure difference control device of building smoke control system as claimed in claim 3, which is characterized in that in the building
Smoke proof staircase and enclosed stairwell are equipped with pressure air blowing air port；
The pressure air blowing branch pipe passes through the pressure air blowing air port and the corresponding smoke proof staircase or the envelope in building
Close staircase perforation connection；
The pressure air blowing air port that the smoke proof staircase and the enclosed stairwell are equipped with is self hang down type air grille.
10. being used for the pressure difference control device of building smoke control system as claimed in claim 9, which is characterized in that when the pressurization
When blowpipe is equipped with wind check-valve, the pressure air blowing air port of the smoke proof staircase and the enclosed stairwell is normal
Open air grille or normally opened air grille.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820052401.5U CN207990874U (en) | 2018-01-12 | 2018-01-12 | Pressure difference control device for building smoke control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820052401.5U CN207990874U (en) | 2018-01-12 | 2018-01-12 | Pressure difference control device for building smoke control system |
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| CN207990874U true CN207990874U (en) | 2018-10-19 |
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| CN201820052401.5U Expired - Fee Related CN207990874U (en) | 2018-01-12 | 2018-01-12 | Pressure difference control device for building smoke control system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109948230A (en) * | 2019-03-14 | 2019-06-28 | 杭州中联筑境建筑设计有限公司 | A kind of building smoke control system design method |
| CN111306689A (en) * | 2020-02-24 | 2020-06-19 | 中国人民解放军火箭军工程设计研究院 | Underground ventilation 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 |
| CN114353232A (en) * | 2021-12-31 | 2022-04-15 | 广州地铁设计研究院股份有限公司 | Pressurized air supply system and pressure relief method for staircase |
-
2018
- 2018-01-12 CN CN201820052401.5U patent/CN207990874U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109948230A (en) * | 2019-03-14 | 2019-06-28 | 杭州中联筑境建筑设计有限公司 | A kind of building smoke control system design method |
| CN109948230B (en) * | 2019-03-14 | 2023-03-10 | 杭州中联筑境建筑设计有限公司 | Design method of building smoke prevention 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 |
| CN111306689A (en) * | 2020-02-24 | 2020-06-19 | 中国人民解放军火箭军工程设计研究院 | Underground ventilation system |
| CN111306689B (en) * | 2020-02-24 | 2020-10-27 | 中国人民解放军火箭军工程设计研究院 | Underground ventilation system |
| CN114353232A (en) * | 2021-12-31 | 2022-04-15 | 广州地铁设计研究院股份有限公司 | Pressurized air supply system and pressure relief method for staircase |
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