CN204923057U - Pressure differential air damper - Google Patents
Pressure differential air damper Download PDFInfo
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- CN204923057U CN204923057U CN201520644132.8U CN201520644132U CN204923057U CN 204923057 U CN204923057 U CN 204923057U CN 201520644132 U CN201520644132 U CN 201520644132U CN 204923057 U CN204923057 U CN 204923057U
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- steel plate
- damper
- connecting rod
- framework
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Abstract
The utility model discloses a pressure differential air damper, including one -level air damper, the second grade air damper soft breeze door shell body, what one -level air damper and second grade air damper were parallel to each other fixes in the air door casing, one -level air damper includes the one -level frame, the connecting rod is adjusted to the one -level, fixed steel sheet and activity steel sheet, the ventilation hole of all opening the same quantity on fixed steel sheet and the activity steel sheet, fixed steel sheet is fixed on the one -level frame, install on the one -level frame activity steel sheet slidable, the one end of activity steel sheet extends to the outside of one -level frame, and adjust the connecting rod with the one -level and be connected, adjust connecting rod promotion activity steel sheet through the one -level, second grade air damper includes the second grade frame, link mechanism and a plurality of turn over the board, it has the pivot on the board to turn over, it rotationally installs on the second grade frame through the pivot to turn over the board, the one end and the link mechanism of pivot are connected, link mechanism drives through the pivot and turns over the board upset. The utility model discloses can effectively adjust the air volume under great internal -external differential pressure, and adjust in a flexible way.
Description
Technical field
The utility model relates to a kind of pressure reduction damper, belongs to boiler plant field.
Background technology
In whole drying system, the negative pressure of dry mixed indoor reaches 2000 handkerchiefs, and the entrance of the cold wind adjustment doors of mixing chamber communicates with air, and therefore, the pressure reduction of cold-air flap entrance and outlet also reaches 2000 handkerchiefs; The surge requirements of drying system to the flue-gas temperature entering drying machine is higher, require that the adjustment of temperature is more accurate, therefore, require very high to the adjusting function of the intake of dry mixed room cold wind damper, common damper cannot reach good ventilation adjusting function under so large inside and outside differential pressure, cannot meet system instructions for use.
Summary of the invention
Technical problem to be solved in the utility model is: overcome the deficiencies in the prior art, provides a kind of pressure reduction damper, and it effectively can regulate ventilation, flexible adjustment under larger inside and outside differential pressure.
In order to solve the problems of the technologies described above, the technical solution of the utility model is: a kind of pressure reduction damper, comprise one-level damper, secondary damper and air door housing, what one-level damper and secondary damper were parallel to each other is fixed in air door housing, described one-level damper comprises one-level framework, one-level regulating connecting rod, fixation steel plate and movable steel plate, fixation steel plate and movable steel plate all have the air vent of equal number, fixation steel plate is fixed on one-level framework, one-level regulating connecting rod is arranged on outside the end of 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 regulating connecting rod, by one-level regulating connecting rod lifting activity steel plate, described secondary damper comprises secondary framework, linkage and several turnover panels, turnover panel has rotating shaft, turnover panel is installed in rotation on secondary framework by rotating shaft, one end of rotating shaft is connected with linkage, linkage drives turnover panel upset by rotating shaft.
Further in order to control activity steel plate automatically, described one-level regulating connecting rod is fixedly connected on YE.
Further, be provided with movable steel plate lifting rail road in described one-level framework, movable steel plate moves up and down in movable steel plate lifting rail road.
Further, described one-level framework, fixation steel plate and movable steel plate are all rectangular, and described air vent is rectangular opening.
Further in order to fixed rotating shaft, the two ends of described rotating shaft are all supported on secondary framework by bearing block.
Further provide a kind of concrete structure of linkage, described linkage comprises the arm of force and connecting rod, and the arm of force is arranged in rotating shaft, the arm of force and rod hinge connection.
Rotate to automatically control turnover panel further, described connecting rod is connected with a Pneumatic adjusting mechanism for adjusting.
After have employed technique scheme, the utility model drives one-level regulating connecting rod lifting activity steel plate by YE, movable steel plate moves up and down in movable steel plate lifting rail road, change the sectional area of the air vent formed between fixation steel plate and movable steel plate, thus regulate cold wind by the resistance of one-level damper; When the air vent of fixation steel plate and movable steel plate overlaps completely, now air throughput is maximum, and air door resistance is minimum; When the air vent of fixation steel plate and movable steel plate does not overlap completely, now air throughput is minimum, and air door resistance is maximum; Pneumatic adjusting mechanism for adjusting drives turnover panel upset, by changing ventilation section thus regulating the ventilation of secondary damper; The utility model is divided into two-stage damper, being balanced at different levels pressure reduction, the effect of one-level damper be increase cold wind by time resistance, to balance the pressure reduction of secondary damper entrance and exit, make cold blast rate reach system requirements further by secondary damper; The utility model effectively can regulate ventilation under larger inside and outside differential pressure, and flexible adjustment.
Accompanying drawing explanation
Fig. 1 is the front view of the utility model pressure reduction damper;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 1;
Fig. 4 is the C-C sectional view of Fig. 2;
Fig. 5 is the structural representation of movable steel plate of the present utility model;
Fig. 6 is the structural representation of fixation steel plate of the present utility model;
In figure, 1, one-level damper, 1-1, one-level framework, 1-2, one-level regulating connecting rod, 1-3, fixation steel plate, 1-4, movable steel plate, 1-5, air vent, 1-6, movable steel plate lifting rail road, 2, secondary damper, 2-1, secondary framework, 2-2, turnover panel, 2-3, rotating shaft, 2-4, linkage, 3, air door housing, 4, Pneumatic adjusting mechanism for adjusting, 5, YE.
Detailed description of the invention
In order to make content of the present utility model more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail
As shown in figs. 1 to 6, a kind of pressure reduction damper, comprise one-level damper 1, secondary damper 2 and air door housing 3, what one-level damper 1 and secondary damper 2 were parallel to each other is fixed in air door housing 3, one-level damper 1 comprises one-level framework 1-1, one-level regulating connecting rod 1-2, fixation steel plate 1-3 and movable steel plate 1-4, fixation steel plate 1-3 and movable steel plate 1-4 all has the air vent 1-5 of equal number, fixation steel plate 1-3 is fixed on one-level framework 1-1, one-level regulating connecting rod 1-2 is arranged on outside the end of one-level framework 1-1, movable steel plate 1-4 is slidably mounted on one-level framework 1-1, one end of movable steel plate 1-4 extends to the outside of one-level framework 1-1, and be connected with one-level regulating connecting rod 1-2, by one-level regulating connecting rod 1-2 lifting activity steel plate 1-4, secondary damper 2 comprises secondary framework 2-1, linkage 2-4 and five turnover panel 2-2, turnover panel 2-2 has rotating shaft 2-3, turnover panel 2-2 is installed in rotation on secondary framework 2-1 by rotating shaft 2-3, one end of rotating shaft 2-3 is connected with linkage 2-4, linkage 2-4 drives turnover panel 2-2 upset by rotating shaft 2-3.
As shown in Figure 1, one-level regulating connecting rod 1-2 is fixedly connected on YE 5.
As shown in Figure 4, be provided with movable steel plate lifting rail road 1-6 in one-level framework 1-1, movable steel plate 1-4 moves up and down in movable steel plate lifting rail road 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 all rectangular, air vent 1-5 is rectangular opening, and quadra made by secondary damper 2 angle steel and steel plate.
As shown in Figure 3, the two ends of rotating shaft 2-3 are all supported on secondary framework 2-1 by bearing block.
As shown in Figure 1,3, linkage 2-4 comprises the arm of force and connecting rod, and the arm of force is arranged on rotating shaft 2-3, the arm of force and rod hinge connection.
As shown in Figure 1,3, connecting rod is connected with Pneumatic adjusting mechanism for adjusting 4.
During practical operation, the pressure reduction of cold-air flap entrance and outlet reaches 2000 handkerchiefs, by calculating the ventilation-sectional area of selected one-level damper 1, about making cold wind reach 1500 handkerchiefs by windage during one-level damper 1, like this, about the negative pressure of the porch of secondary damper 2 is reduced to 500 handkerchiefs, substantially reduce the pressure reduction of secondary damper 2 entrance and exit, then regulate the flip angle of turnover panel 2-2, make the cold wind eventually through secondary damper 2 be the numerical value of system requirements.
Operation principle of the present utility model is as follows:
The movable steel plate 1-4 of one-level damper 1 moves up and down under the effect of YE 5 in movable steel plate lifting rail road 1-6, when the air vent 1-5 of fixation steel plate 1-3 and movable steel plate 1-4 overlaps completely, now air throughput is maximum, air door resistance is minimum, when the air vent 1-5 of fixation steel plate 1-3 and movable steel plate 1-4 does not overlap completely, now air throughput is minimum, and air door resistance is maximum; Pneumatic adjusting mechanism for adjusting 4 drives turnover panel 2-2 to overturn, and changes ventilation-sectional area, thus regulates the ventilation by secondary damper 2; When the cold blast rate that system needs changes, promoted by YE 5 or reduction activity steel plate 1-4, reduce or increase vent cross-sections, then being regulated the flip angle of turnover panel 2-2 by Pneumatic adjusting mechanism for adjusting 4, reach system and must ask cold blast rate.
The utility model is divided into two-stage damper, being balanced at different levels pressure reduction, the effect of one-level damper 1 be increase cold wind by time resistance, to balance the pressure reduction of secondary damper 2 entrance and exit, make cold blast rate reach system requirements further by secondary damper 2; The utility model effectively can regulate ventilation under larger inside and outside differential pressure, and flexible adjustment.
Above-described specific embodiment; technical problem, technical scheme and beneficial effect that the utility model solves are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. a pressure reduction damper, comprise one-level damper (1), secondary damper (2) and air door housing (3), what one-level damper (1) and secondary damper (2) were parallel to each other is fixed in air door housing (3), it is characterized in that: described one-level damper (1) comprises one-level framework (1-1), one-level regulating connecting rod (1-2), fixation steel plate (1-3) and movable steel plate (1-4), fixation steel plate (1-3) and movable steel plate (1-4) all have the air vent (1-5) of equal number, fixation steel plate (1-3) is fixed on one-level framework (1-1), one-level regulating connecting rod (1-2) is arranged on outside the end of one-level framework (1-1), movable steel plate (1-4) is slidably mounted on one-level framework (1-1), one end of movable steel plate (1-4) extends to the outside of one-level framework (1-1), and be connected with one-level regulating connecting rod (1-2), by one-level regulating connecting rod (1-2) lifting activity steel plate (1-4), described secondary damper (2) comprises secondary framework (2-1), linkage (2-4) and several turnover panels (2-2), turnover panel (2-2) has rotating shaft (2-3), turnover panel (2-2) is installed in rotation on secondary framework (2-1) by rotating shaft (2-3), one end of rotating shaft (2-3) is connected with linkage (2-4), linkage (2-4) drives turnover panel (2-2) to overturn by rotating shaft (2-3).
2. pressure reduction damper according to claim 1, is characterized in that: described one-level regulating connecting rod (1-2) is fixedly connected on YE (5).
3. pressure reduction damper according to claim 1 and 2, it is characterized in that: be provided with movable steel plate lifting rail road (1-6) in described one-level framework (1-1), movable steel plate (1-4) moves up and down in movable steel plate lifting rail road (1-6).
4. pressure reduction damper according to claim 1 and 2, it is characterized in that: described one-level framework (1-1), fixation steel plate (1-3) and movable steel plate (1-4) are all rectangular, described air vent (1-5) is rectangular opening.
5. pressure reduction damper according to claim 1, is characterized in that: the two ends of described rotating shaft (2-3) are all supported on secondary framework (2-1) by bearing block.
6. pressure reduction damper according to claim 1 or 5, is characterized in that: described linkage (2-4) comprises the arm of force and connecting rod, and the arm of force is arranged in rotating shaft (2-3), and the arm of force and rod hinge connection.
7. pressure reduction damper according to claim 6, is characterized in that: described connecting rod is connected with a Pneumatic adjusting mechanism for adjusting (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520644132.8U CN204923057U (en) | 2015-08-25 | 2015-08-25 | Pressure differential air damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520644132.8U CN204923057U (en) | 2015-08-25 | 2015-08-25 | Pressure differential air damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204923057U true CN204923057U (en) | 2015-12-30 |
Family
ID=54972180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520644132.8U Withdrawn - After Issue CN204923057U (en) | 2015-08-25 | 2015-08-25 | Pressure differential air damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204923057U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042619A (en) * | 2015-08-25 | 2015-11-11 | 常州联合锅炉容器有限公司 | Differential pressure adjusting air damper |
-
2015
- 2015-08-25 CN CN201520644132.8U patent/CN204923057U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042619A (en) * | 2015-08-25 | 2015-11-11 | 常州联合锅炉容器有限公司 | Differential pressure adjusting air damper |
| CN105042619B (en) * | 2015-08-25 | 2017-06-27 | 常州联合锅炉容器有限公司 | Pressure difference damper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151230 Effective date of abandoning: 20170627 |