CN208536248U - A kind of fire-fighting roofing pressure air blowing unit - Google Patents
A kind of fire-fighting roofing pressure air blowing unit Download PDFInfo
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- CN208536248U CN208536248U CN201821025201.7U CN201821025201U CN208536248U CN 208536248 U CN208536248 U CN 208536248U CN 201821025201 U CN201821025201 U CN 201821025201U CN 208536248 U CN208536248 U CN 208536248U
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Abstract
The utility model discloses a kind of fire-fighting roofing pressure air blowing units, it is characterized in that, including cabinet, the fresh air air inlet of cabinet one end is set and the fresh air air outlet of the cabinet other end is set, centrifugal blower is fixedly installed in the side close to fresh air air inlet in the cabinet, the first longitudinally disposed partition panel in the cabinet, second partition panel is transversely set, cabinet is separated into two spaces, including working bin and wind pressure storehouse in the position close to centrifugal blower by first partition panel；The beneficial effects of the utility model are: the unit is by smoke alarm, centrifugal blower, control cabinet, built in electric bypass air, outside uses integrated box body structure, cabinet uses durable and rain and sun material, the service life of unit and attachment, and beauty easy for installation are substantially increased, construction speed is greatlyd save.
Description
Technical field
The utility model relates to Building Fire Fighting System technical fields, and in particular to a kind of fire-fighting roofing forced draught blower
Group.
Background technique
The mechanic pressure blow system is a kind of very effective smoke abatement facility, is widely used in all kinds of buildings, according to
Code requirement, does not have the smoke proof staircase of nature smoke-stop condition, the mechanic pressure blow system need to be arranged in cup, while providing anti-
The positive pressure value of cigarette staircase is 40 ~ 50Pa, and the positive pressure value of cup is 25 ~ 30Pa, for the positive pressure for keeping smoke proof staircase, cup
Value, national standard drawings " building smoke controlling and Heating,Ventilating and Air Conditioning fire protection design " 07K103-1 list two kinds of processing methods: 1. using remaining
2. pressure valve control positive pressure value uses by-passing valve to control positive pressure value.It is less to be applied in building because 1. method influences building beauty,
The processing mode of by-passing valve control positive pressure value is generallyd use at present.
The unit for being exclusively used in mechanism contact type sensor is had no currently on the market, and common scenario is that outdoor pressure air blowing is mechanical, electrical
Dynamic bypass air-valve, control cabinet and other accessories are respectively independently arranged and install, extremely unsightly, the mechanical, electrical dynamic side of forced draft
Ventilation valve, control cabinet have no that rain and sun facility or rain and sun facility are excessively simple and crude to cause service life of equipment short, electronic side
Ventilation valve, which gets rusty easily, generates stuck phenomenon, and security risk is larger, while equipment and accessory be from different suppliers, when construction
It needs constantly to coordinate, brings inconvenience to construction, influence construction speed.
Since smoke proof staircase and cup pressure differential resetting value are inconsistent, have no currently on the market it is a kind of can be suitable for simultaneously it is anti-
The pressure air blowing unit of cigarette staircase and cup.
Roofing forced draught blower and its accessory are ineffective due to protecting at present, and pressurization air supply system has extremely serious leak out
Phenomenon.
Although forced draught blower is recommended to be placed in building one layer or basement in specification, it need to be independently arranged pressure air blowing computer room,
To be not take up interior construction spacing, forced draught blower is generally placed in building surface layer, fire by the building of design and construction at present
When due to being moved on flue gas flow direction, roofing layer forced draught blower suction inlet is easy erosion by flue gas stream, leads to pressure air blowing
System largely sucks flue gas, and flue gas is sent to smoke proof staircase, cup so that pressurization air supply system cannot not only prevent flue gas into
Enter smoke proof staircase, cup, deteriorates the evacuation environment of smoke proof staircase, cup instead, the original intention with setting pressurization air supply system
It greatly differs from each other, therefore there is an urgent need to take measures to avoid the occurrence of this.
Utility model content
In order to solve the problems in the existing technology, the utility model provides a kind of structurally reasonable fire-fighting roofing
Pressure air blowing unit.
The technical solution of the utility model is as follows:
A kind of fire-fighting roofing pressure air blowing unit, which is characterized in that including cabinet, be arranged in the fresh air of cabinet one end into
Air port and the fresh air air outlet that the cabinet other end is set, in the cabinet the side close to fresh air air inlet be fixedly installed from
Core type pressure fan, the first longitudinally disposed partition panel in the cabinet are transversely arranged the second partition panel, and described first
Cabinet is separated into two spaces, including working bin and wind pressure storehouse in the position close to centrifugal blower by partition panel；It is described
Second partition panel is equipped with control cabinet, and the cabinet is equipped with bypass air outlet in the side for being located at wind pressure storehouse, described to bypass out
Air port is equipped with the electric bypass air for pressure difference；It is equipped at the position for being located at fresh air air inlet for supervising on the cabinet
Survey the smoke alarm of fresh air air inlet air condition.
A kind of fire-fighting roofing pressure air blowing unit, which is characterized in that the centrifugal blower bottom is equipped with
Spring damper, the centrifugal blower are fixed on the bottom plate of cabinet by spring damper.
A kind of fire-fighting roofing pressure air blowing unit, which is characterized in that liquid crystal display is equipped in the control cabinet
Device and operation panel, and sensor bus interface and fire-fighting dual power supply line interface are reserved, electronic side is additionally provided in the control cabinet
The electrical control gear of ventilation valve, the electric bypass air pass through the electrical control gear phase of cable and electric bypass air
Connection.
A kind of fire-fighting roofing pressure air blowing unit, which is characterized in that the fresh air air inlet and bypass outlet air
Aluminium alloy stormproof louvre is equipped at mouthful.
The beneficial effects of the utility model are: the unit is by smoke alarm, centrifugal blower, control cabinet, electronic side
Built in ventilation valve, outside use integrated box body structure, cabinet use durable and rain and sun material, substantially increase unit and
The service life of attachment, and beauty easy for installation, greatly save construction speed, and control cabinet built in unit can set pressure air blowing
The pressure difference in region does not need to carry out more complicated programming, debugging to pressurization air supply system, when greatly reducing system debug
Between；Unit is built-in with smoke alarm, eliminates and sucks a large amount of flue gases during pressurization air supply system implements pressure air blowing
Security risk；Unit is built-in with spring damper, and when construction does not need separately to set damper, constructs more convenient.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the utility model；
Fig. 2 is the positive structure schematic of the utility model；
Fig. 3 is the overlooking structure diagram of the utility model；
Fig. 4 is the mounting structure schematic diagram of the utility model；
Fig. 5 is the control flow chart of the utility model；
In figure: 1- smoke alarm, 2- centrifugal blower, the first partition panel of 3-, 4- electric bypass air, 5- control
Cabinet, 6- fresh air air outlet, 7- cabinet, 8- bypass air outlet, 9- fresh air air inlet, the second partition panel of 10-, 11- cup, 12-
Pressure air blowing well, 13- differential pressure pickup.
Specific embodiment
Below in conjunction with Figure of description, the utility model is further described.
As shown in Figs. 1-5, a kind of fire-fighting roofing pressure air blowing unit, including smoke alarm 1, centrifugal blower 2,
First partition panel 3, electric bypass air 4, control cabinet 5, fresh air air outlet 6, cabinet 7, bypass air outlet 8, fresh air air inlet 9
And second partition panel 10.
Cabinet uses integral structure, and cabinet is made of durable and rain and sun material, includes that cigarette sense is visited inside unit
Device 1, centrifugal blower 2, spring damper 3, electric bypass air 4, control cabinet 5 and electrical power distribution route are surveyed, wherein cigarette
Sense detector 1 is placed at unit fresh air air inlet 9, monitors air condition at fresh air suction inlet；Control cabinet 5 built in unit, control
The electrical control gear of electric bypass air 4 built in cabinet 5, electric bypass air 4 pass through the electricity of cable and electric bypass air 4
Gas control device is connected, and liquid crystal display, operation panel is equipped in control cabinet 5, and be reserved with from forced draft region (building
Between ladder, cup etc.) interface of differential pressure pickup bus and the interface of fire-fighting dual power supply line；Smoke alarm 1, centrifugal blower
2, electric bypass air 4 with 5 circuit connection of control cabinet, liquid crystal display have display forced draft region pressure differential resetting value,
4 open/close states of electric bypass air, 2 start and stop state of centrifugal blower, the function of 9 air condition of fresh air air inlet, operating surface
Plate has the function of the specific pressure difference in setting forced draft region, unit fresh air suction inlet air condition and manual start and stop forced draught blower
Can, while access hole or maintenance door are set so as to overhaul of the equipments in the proper site of pressure air blowing unit.
Control principle is as follows: it is equipped with smoke alarm 1 at unit fresh air air inlet 9, centrifugal blower 2 built in unit,
Control cabinet 5, electric bypass air 4.When fire, as the centrifugal blower 2 built in control center starting pressure air blowing unit that disappears, implement
Pressure air blowing, when the smoke behavior of the fresh air air inlet 9 of pressure air blowing unit is greater than the flue gas concentration of setting, by the control center that disappears
Stop centrifugal blower 2 built in pressure air blowing unit, halt system air-supply is implementing the pressurization air supply system stage, working as pressurization
When the pressure difference of the differential pressure pickup of air-supply region is more than upper limit value (the smoke proof staircase 50Pa, cup 30Pa) set,
Electronic opening electric bypass air 4 implements pressure release, when the pressure difference of the differential pressure pickup in pressure air blowing region is less than under setting
When limit value (smoke proof staircase 40Pa, cup 25Pa), electronic closing electric bypass air 4 stops pressure release.
Embodiment:
Implement the building of pressure air blowing for a certain building cup, steps are as follows for concrete application: 1. arranging the pressure difference of cup 11
Sensor 13, and be connected to differential pressure pickup bus and 2. pressure air blowing unit is placed near roofing pressure air blowing well 12 and 3. pass through
Unit fresh air air outlet 6 is connected by air hose with pressure air blowing well 12 (when carrying out staircase air-supply, adds non-return on this section of air hose
Valve), connecting hose need to be set at air hose and unit fresh air air outlet 6 and connect；4. the pressure difference control bus from cup 11 is connected
5. fire-fighting dual power supply cable is connected to the control of pressure air blowing unit by the pressure difference bus interface to pressure air blowing unit control cabinet 5
6. the power interface of cabinet 5 opens the operation panel of pressure air blowing unit control cabinet 5, set the upper limit, the lower limit value of cup pressure difference, add
The flue gas concentration value of force feed blower fan group smoke alarm 1.By above step, just setting completed for pressurization air supply system, with letter
It is single, while the unit is not that can be only placed at roofing, is not that can only implement pressure air blowing to smoke proof staircase, cup, it can also
To be placed in outdoor other positions, can also be applied to refuge story and other need to implement the region of pressure air blowing, have good
Market application and popularization value.
Claims (4)
1. a kind of fire-fighting roofing pressure air blowing unit, which is characterized in that including cabinet (7), be arranged in the new of cabinet (7) one end
Wind air inlet (9) and setting cabinet (7) other end fresh air air outlet (6), close to fresh air air inlet in the cabinet (7)
(9) centrifugal blower (2) are fixedly installed in side, longitudinally disposed the first partition panel (3), edge in the cabinet (7)
Laterally setting the second partition panel (10), first partition panel (3) is in the position close to centrifugal blower (2) by cabinet
(7) two spaces, including working bin and wind pressure storehouse are separated into；Second partition panel (10) is equipped with control cabinet (5), described
Cabinet (7) is equipped with bypass air outlet (8) in the side for being located at wind pressure storehouse, and bypass air outlet (8) is equipped with for pressure difference
Electric bypass air (4)；It is equipped at the position for being located at fresh air air inlet (6) on the cabinet (7) for monitoring fresh air air inlet
The smoke alarm (1) of air condition at mouth (6).
2. a kind of fire-fighting according to claim 1 roofing pressure air blowing unit, which is characterized in that the centrifugal air-supply
Machine (2) bottom is equipped with spring damper (3), and the centrifugal blower (2) is fixed on cabinet (7) by spring damper (3)
Bottom plate on.
3. a kind of fire-fighting according to claim 1 roofing pressure air blowing unit, which is characterized in that the control cabinet (5)
It is interior to be equipped with liquid crystal display and operation panel, and reserved sensor bus interface and fire-fighting dual power supply line interface, the control cabinet
(5) be additionally provided with the electrical control gears of electric bypass air (4) in, the electric bypass air (4) by cable with it is electronic
The electrical control gear of bypass air-valve (4) is connected.
4. a kind of fire-fighting according to claim 1 roofing pressure air blowing unit, which is characterized in that the fresh air air inlet
(9) and at bypass air outlet (8) it is equipped with aluminium alloy stormproof louvre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821025201.7U CN208536248U (en) | 2018-06-30 | 2018-06-30 | A kind of fire-fighting roofing pressure air blowing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821025201.7U CN208536248U (en) | 2018-06-30 | 2018-06-30 | A kind of fire-fighting roofing pressure air blowing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208536248U true CN208536248U (en) | 2019-02-22 |
Family
ID=65379159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821025201.7U Active CN208536248U (en) | 2018-06-30 | 2018-06-30 | A kind of fire-fighting roofing pressure air blowing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208536248U (en) |
-
2018
- 2018-06-30 CN CN201821025201.7U patent/CN208536248U/en active Active
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