CN105042619B - Pressure difference damper - Google Patents
Pressure difference damper Download PDFInfo
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- CN105042619B CN105042619B CN201510525973.1A CN201510525973A CN105042619B CN 105042619 B CN105042619 B CN 105042619B CN 201510525973 A CN201510525973 A CN 201510525973A CN 105042619 B CN105042619 B CN 105042619B
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Abstract
The invention discloses a kind of pressure difference damper,Including one-level damper,Two grades of dampers and air door housing,What one-level damper and two grades of dampers were parallel to each other is fixed in air door housing,One-level damper includes one-level framework,One-level adjusts connecting rod,Fixation steel plate and movable steel plate,The air vent of equal number is provided with fixation steel plate and movable steel plate,Fixation steel plate is fixed on one-level framework,Movable steel plate is slidably mounted on one-level framework,One end of movable steel plate extends to the outside of one-level framework,And be connected with one-level regulation connecting rod,Connecting rod lifting activity steel plate is adjusted by one-level,Two grades of dampers include two grades of frameworks,Linkage and several turnover panels,There is rotating shaft on turnover panel,Turnover panel is installed in rotation on two grades of frameworks by rotating shaft,One end of rotating shaft is connected with linkage,Linkage drives turnover panel to overturn by rotating shaft.The present invention can effectively adjust ventilation, and flexible adjustment under larger inside and outside differential pressure.
Description
Technical field
The present invention relates to a kind of pressure difference damper, belong to boiler plant field.
Background technology
In whole drying system, the negative pressure in dry mixed room is up to 2000 handkerchiefs, and the cold wind of mixing chamber adjusts entering for door
Mouth is communicated with air, therefore, cold-air flap entrance also reaches 2000 handkerchiefs with the pressure difference of outlet；Drying system is to entering drying machine
The surge requirements of flue-gas temperature are higher, it is desirable to which the regulation of temperature is more accurate, therefore, to dry mixed room cold wind damper
The regulation performance requirement of intake is very high, and common damper is unable to reach preferably ventilation under so big inside and outside differential pressure
Amount regulation performance, it is impossible to meet system use requirement.
The content of the invention
The technical problem to be solved in the present invention is：Overcome the deficiencies in the prior art, there is provided a kind of pressure difference damper, its energy
It is enough that ventilation, flexible adjustment are effectively adjusted under larger inside and outside differential pressure.
In order to solve the above-mentioned technical problem, the technical scheme is that：A kind of pressure difference damper, including one-level regulation
What air door, two grades of dampers and air door housing, one-level damper and two grades of dampers were parallel to each other is fixed on air door shell
In vivo, described one-level damper includes one-level framework, one-level regulation connecting rod, fixation steel plate and movable steel plate, fixation steel plate
With the air vent that equal number is provided with movable steel plate, fixation steel plate is fixed on one-level framework, and one-level regulation connecting rod is set
On the outside of the end of one-level framework, movable steel plate is slidably mounted on one-level framework, and one end of movable steel plate extends to one
The outside of level framework, and be connected with one-level regulation connecting rod, connecting rod lifting activity steel plate, two grades of described regulations are adjusted by one-level
Air door includes two grades of frameworks, linkage and several turnover panels, has rotating shaft on turnover panel, and turnover panel is rotatably mounted by rotating shaft
On two grades of frameworks, one end of rotating shaft is connected with linkage, and linkage drives turnover panel to overturn by rotating shaft.
Further for automatic control activity steel plate, described one-level regulation connecting rod is fixedly connected on YE.
Further, movable steel plate lifting rail road is provided with described one-level framework, movable steel plate is lifted in movable steel plate
Moved up and down in track.
Further, described one-level framework, fixation steel plate and movable steel plate are rectangular, and described air vent is rectangle
Hole.
Further for fixed rotating shaft, the two ends of described rotating shaft are supported on two grades of frameworks by bearing block.
A kind of concrete structure of linkage is further provided, described linkage includes the arm of force and connecting rod, the arm of force
In rotating shaft, the arm of force and rod hinge connection.
Rotated further for turnover panel is automatically controlled, described connecting rod is connected with a Pneumatic adjusting mechanism for adjusting.
After employing above-mentioned technical proposal, the present invention drives one-level to adjust connecting rod lifting movable steel by YE
Plate, movable steel plate is moved up and down in movable steel plate lifting rail road, changes the ventilation formed between fixation steel plate and movable steel plate
The sectional area in hole, so as to adjust resistance of the cold wind by one-level damper；When the air vent of fixation steel plate and movable steel plate is complete
When full weight is closed, now air throughput is maximum, and air door resistance is minimum；When the air vent of fixation steel plate and movable steel plate is not weighed completely
During conjunction, now air throughput is minimum, and air door resistance is maximum；Pneumatic adjusting mechanism for adjusting drives turnover panel upset, is cut by changing ventilation
Face is adjusted so as to the ventilation to two grades of dampers；The present invention is divided into two-stage damper, being balanced at different levels pressure difference, one-level
The effect of damper be increase cold wind by when resistance, to balance two grades of pressure differences of damper entrance and exit, enter one
Step makes cold blast rate reach system requirements by two grades of dampers；The present invention can effectively adjust logical under larger inside and outside differential pressure
Air quantity, and flexible adjustment.
Brief description of the drawings
Fig. 1 is the front view of pressure difference damper of the present invention；
Fig. 2 is the A-A sectional views of Fig. 1；
Fig. 3 is the B-B sectional views of Fig. 1；
Fig. 4 is the C-C sectional views of Fig. 2；
Fig. 5 is the structural representation of movable steel plate of the invention；
Fig. 6 is the structural representation of fixation steel plate of the invention；
In figure, 1, one-level damper, 1-1, one-level framework, 1-2, one-level regulation connecting rod, 1-3, fixation steel plate, 1-4, work
Dynamic steel plate, 1-5, air vent, 1-6, movable steel plate lifting rail road, 2, two grades of dampers, 2-1, two grades of frameworks, 2-2, turnover panel,
2-3, rotating shaft, 2-4, linkage, 3, air door housing, 4, Pneumatic adjusting mechanism for adjusting, 5, YE.
Specific embodiment
In order that present disclosure is easier to be clearly understood, it is right below according to specific embodiment and with reference to accompanying drawing
The present invention is described in further detail
As shown in figs. 1 to 6, a kind of 1, two grades of dampers 2 of pressure difference damper, including one-level damper and air door shell
What body 3, one-level damper 1 and two grades of dampers 2 were parallel to each other is fixed in air door housing 3, and one-level damper 1 includes
One-level framework 1-1, one-level regulation connecting rod 1-2, fixation steel plate 1-3 and activity steel plate 1-4, fixation steel plate 1-3 and movable steel plate 1-4
On be provided with the air vent 1-5 of equal number, fixation steel plate 1-3 is fixed on one-level framework 1-1, and one-level regulation connecting rod 1-2 sets
Put on the outside of the end of one-level framework 1-1, movable steel plate 1-4 is slidably mounted on one-level framework 1-1, movable steel plate 1-4
One end extend to the outside of one-level framework 1-1, and be connected with one-level regulation connecting rod 1-2, connecting rod 1-2 liftings are adjusted by one-level
Movable steel plate 1-4, two grades of dampers 2 include two grades of framework 2-1, linkage 2-4 and five turnover panel 2-2, have on turnover panel 2-2
There are rotating shaft 2-3, turnover panel 2-2 to be installed in rotation on two grades of framework 2-1 by rotating shaft 2-3, one end and the connecting rod machine of rotating shaft 2-3
Structure 2-4 is connected, and linkage 2-4 drives turnover panel 2-2 to overturn by rotating shaft 2-3.
As shown in figure 1, one-level regulation connecting rod 1-2 is fixedly connected on YE 5.
As shown in figure 4, being provided with movable steel plate lifting rail road 1-6 in one-level framework 1-1, movable steel plate 1-4 is in movable steel
Moved up and down in plate lifting track 1-6.
As shown in figs. 1 to 6, one-level framework 1-1, fixation steel plate 1-3 and movable steel plate 1-4 are rectangular, and air vent 1-5 is
Rectangular opening, two grades of dampers 2 are made quadra with angle steel and steel plate.
As shown in figure 3, the two ends of rotating shaft 2-3 are supported on two grades of framework 2-1 by bearing block.
As shown in Figure 1,3, linkage 2-4 includes the arm of force and connecting rod, and the arm of force is arranged on rotating shaft 2-3, the arm of force and connecting rod
It is hinged.
As shown in Figure 1,3, connecting rod is connected with Pneumatic adjusting mechanism for adjusting 4.
During practical operation, cold-air flap entrance reaches 2000 handkerchiefs with the pressure difference of outlet, by calculating selected one-level damper 1
Ventilation-sectional area, windage when making cold wind by one-level damper 1 reaches 1500 handkerchiefs or so, so, wind is adjusted at two grades
The negative pressure of the porch of door 2 is reduced to 500 handkerchiefs or so, substantially reduces two grades of pressure differences of the entrance and exit of damper 2, then
The flip angle of regulation turnover panel 2-2, makes the numerical value for system requirements eventually through two grades of cold wind of damper 2.
Operation principle of the invention is as follows：
The movable steel plate 1-4 of one-level damper 1 is in the presence of YE 5 in movable steel plate lifting rail road 1-6
Inside move up and down, when the air vent 1-5 of fixation steel plate 1-3 and movable steel plate 1-4 is completely superposed, now air throughput is most
Greatly, air door resistance is minimum, and when the air vent 1-5 of fixation steel plate 1-3 and movable steel plate 1-4 is completely misaligned, now air leads to
Excessive minimum, air door resistance is maximum；Pneumatic adjusting mechanism for adjusting 4 drives turnover panel 2-2 upsets, changes ventilation-sectional area, so as to adjust logical
Cross two grades of ventilations of damper 2；When the cold blast rate that system needs changes, work is lifted or reduced by YE 5
Dynamic steel plate 1-4, is decreased or increased vent cross-sections, and the flip angle of turnover panel 2-2 is then adjusted by Pneumatic adjusting mechanism for adjusting 4, reaches
Cold blast rate must be asked to system.
The present invention is divided into two-stage damper, being balanced at different levels pressure difference, and the effect of one-level damper 1 is to increase cold wind to pass through
When resistance, to balance two grades of pressure differences of the entrance and exit of damper 2, further make cold blast rate by two grades of dampers 2
Reach system requirements；The present invention can effectively adjust ventilation, and flexible adjustment under larger inside and outside differential pressure.
Particular embodiments described above, pair present invention solves the technical problem that, technical scheme and beneficial effect carry out
Further describe, should be understood that and the foregoing is only specific embodiment of the invention, be not limited to this
Invention, all any modification, equivalent substitution and improvements within the spirit and principles in the present invention, done etc., should be included in this hair
Within bright protection domain.
Claims (7)
1. a kind of pressure difference damper, including one-level damper (1), two grades of dampers (2) and air door housing (3), one-level
What damper (1) and two grades of dampers (2) were parallel to each other is fixed in air door housing (3), it is characterised in that：Described one
Level damper (1) adjusts connecting rod (1-2), fixation steel plate (1-3) and movable steel plate (1- including one-level framework (1-1), one-level
4) air vent (1-5) of equal number, is provided with fixation steel plate (1-3) and movable steel plate (1-4), fixation steel plate (1-3) is solid
It is scheduled on one-level framework (1-1), one-level adjusts the end outside that connecting rod (1-2) is arranged on one-level framework (1-1), movable steel plate
(1-4) is slidably mounted on one-level framework (1-1), and one end of movable steel plate (1-4) extends to the outer of one-level framework (1-1)
Side, and be connected with one-level regulation connecting rod (1-2), connecting rod (1-2) lifting activity steel plate (1-4), described two are adjusted by one-level
Level damper (2) includes two grades of frameworks (2-1), linkage (2-4) and several turnover panels (2-2), has on turnover panel (2-2)
Rotating shaft (2-3), turnover panel (2-2) is installed in rotation on two grades of frameworks (2-1) by rotating shaft (2-3), one end of rotating shaft (2-3)
It is connected with linkage (2-4), linkage (2-4) drives turnover panel (2-2) to overturn by rotating shaft (2-3).
2. pressure difference damper according to claim 1, it is characterised in that：It is fixed that described one-level adjusts connecting rod (1-2)
It is connected on YE (5).
3. pressure difference damper according to claim 1 and 2, it is characterised in that：Set in described one-level framework (1-1)
There is movable steel plate lifting rail road (1-6), movable steel plate (1-4) moves up and down in movable steel plate lifting rail road (1-6).
4. pressure difference damper according to claim 1 and 2, it is characterised in that：Described one-level framework (1-1), fixation
Steel plate (1-3) and movable steel plate (1-4) are rectangular, and described air vent (1-5) is rectangular opening.
5. pressure difference damper according to claim 1, it is characterised in that：The two ends of described rotating shaft (2-3) pass through
Bearing block is supported on two grades of frameworks (2-1).
6. pressure difference damper according to claim 1 or 5, it is characterised in that：Described linkage (2-4) includes power
Arm and connecting rod, the arm of force are arranged in rotating shaft (2-3), and the arm of force and rod hinge connection.
7. pressure difference damper according to claim 6, it is characterised in that：Described connecting rod and a Pneumatic adjusting mechanism for adjusting
(4) connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510525973.1A CN105042619B (en) | 2015-08-25 | 2015-08-25 | Pressure difference damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510525973.1A CN105042619B (en) | 2015-08-25 | 2015-08-25 | Pressure difference damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105042619A CN105042619A (en) | 2015-11-11 |
| CN105042619B true CN105042619B (en) | 2017-06-27 |
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ID=54449396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510525973.1A Active CN105042619B (en) | 2015-08-25 | 2015-08-25 | Pressure difference damper |
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| Country | Link |
|---|---|
| CN (1) | CN105042619B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108543326B (en) * | 2018-04-03 | 2019-10-25 | 杭州精湛科技咨询有限责任公司 | Eliminating white smoke device and eliminating white smoke method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0111576A1 (en) * | 1982-12-16 | 1984-06-27 | RAS Rohrleitungs-, Apparate- und Stahlbaugesellschaft mbH & Co. KG | Cut-off valve for hot gas, in particular flue gas |
| CN104329683A (en) * | 2014-11-05 | 2015-02-04 | 黑龙江宏宇电站设备有限公司 | Air door device provided with turning plate for power station and blocking method |
| CN204494470U (en) * | 2015-03-04 | 2015-07-22 | 任小强 | A kind of pneumatic air door |
| CN204923057U (en) * | 2015-08-25 | 2015-12-30 | 常州联合锅炉容器有限公司 | Pressure differential air damper |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005283051A (en) * | 2004-03-31 | 2005-10-13 | Tokyo Electric Power Co Inc:The | Damper device |
-
2015
- 2015-08-25 CN CN201510525973.1A patent/CN105042619B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0111576A1 (en) * | 1982-12-16 | 1984-06-27 | RAS Rohrleitungs-, Apparate- und Stahlbaugesellschaft mbH & Co. KG | Cut-off valve for hot gas, in particular flue gas |
| CN104329683A (en) * | 2014-11-05 | 2015-02-04 | 黑龙江宏宇电站设备有限公司 | Air door device provided with turning plate for power station and blocking method |
| CN204494470U (en) * | 2015-03-04 | 2015-07-22 | 任小强 | A kind of pneumatic air door |
| CN204923057U (en) * | 2015-08-25 | 2015-12-30 | 常州联合锅炉容器有限公司 | Pressure differential air damper |
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| Publication number | Publication date |
|---|---|
| CN105042619A (en) | 2015-11-11 |
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| CB03 | Change of inventor or designer information |
Inventor after: Zhu Shuaishuai Inventor after: Wei Juan Inventor after: Han Shouping Inventor before: Zhu Shuai Inventor before: Wei Juan Inventor before: Han Shouping |
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| CB03 | Change of inventor or designer information |