CN2684032Y - Smoke isolation damper - Google Patents
Smoke isolation damper Download PDFInfo
- Publication number
- CN2684032Y CN2684032Y CN 200420024997 CN200420024997U CN2684032Y CN 2684032 Y CN2684032 Y CN 2684032Y CN 200420024997 CN200420024997 CN 200420024997 CN 200420024997 U CN200420024997 U CN 200420024997U CN 2684032 Y CN2684032 Y CN 2684032Y
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- CN
- China
- Prior art keywords
- valve plate
- switching valve
- valve
- self
- closed chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a smoke isolation baffle air door which relates to an isolation baffle door for switching and insulating flue gas in a flue gas desulfurization system (FGD). The smoke isolation baffle air door can realize the isolation for the flue gas with a simple and reliable structure. The smoke isolation baffle air door comprises the valve body 3 of the a self-closing structural valve plate with an air-proof cavity, the control switching valve 5 of intermediate agent and an electric actuator 1, wherein, the electric actuator and the control switching valve are respectively positioned on the both sides of the exterior of the valve body; the self-closing structural valve plate 4 with the air-proof cavity is positioned in the valve body; one end of the self-closing structural valve plate 4 with the air-proof cavity is connected with the electric actuator outside, and the other end is connected with the control switching valve 5 of the intermediate agent outside; the control switching valve of the intermediate agent is communicated with the hollow space of the self-closing structural valve plate with the air-proof cavity. The self-closing structural valve plate with the air-proof cavity can be driven to rotate 90 DEG by the electric actuator, and meanwhile the control switching valve of the intermediate agent is driven to rotate 90 DEG. The utility model enables the control switching system of the intermediate agent and the valve plate control to unitize, which guarantees the safety of seal.
Description
Technical field
The utility model relates to a kind of isolated type baffle door that is used for that flue gas desulphurization system (FGD) flue gas switches and isolates, and it can realize isolated to flue gas with simple and reliable structure, belongs to that flue gas desulfurization device makes
Technical field.
Background technique
The at present known isolated type baffle door that is used for the switching of flue gas desulphurization system (FGD) flue gas and isolates is the multiaxis shutter, adopt the flue gas realization isolation fully that the intermediate medium supply system provides spacer medium to guarantee the baffle door both sides is set separately, exist complex structure, system is complicated, error probability increases, possible leak point is many, and flue dust impurity easily enters problems such as Seal cage.
Summary of the invention
Technical problem: in order to overcome the problem that existing flue gas switches and partition method exists, the utility model provide a kind of simple in structure, the flue gas isolation effect is good, cost is low, with the smoke gas isolating baffle ventilation door of intermediate medium isolation.
Technological scheme: the technical solution adopted for the present invention to solve the technical problems is: it is integrated that intermediate medium is controlled the control of switched system and valve plate, be made up of barge board, shell and control gear, this smoke gas isolating baffle ventilation door comprises valve body, intermediate medium control switching valve, the electric actuator of the self-closing structure valve plate of being with closed chamber; Wherein electric actuator, intermediate medium control switching valve lay respectively at the both sides of valve body outside, the self-closing structure valve plate of band closed chamber is for being positioned at valve body, the one end is connected with the electric actuator of outside, the other end is controlled switching valve with outside intermediate medium and is connected, and intermediate medium control switching valve is connected with the hollow space of the self-closing structure valve plate of band closed chamber; The self-closing structure valve plate of this band closed chamber can be by electric actuator driven rotary 90 degree, drives intermediate medium control switching valve simultaneously and revolves and turn 90 degrees.
Intermediate medium control switching valve is made up of switching valve stationary part, switching valve rotor portion, and wherein the switching valve rotor portion is hollow shaft and is arranged in the switching valve stationary part and can relatively rotates, and the switching valve stationary part is connected with suction tude; Be provided with a suction port on the wall of switching valve rotor portion, this suction port becomes 90 degree with the plane of the self-closing structure valve plate of band closed chamber, and this suction port can be connected with suction tude after rotating simultaneously.
The self-closing structure valve plate of band closed chamber by decide valve plate, move valve plate, diaphragm seal forms, one end of moving valve plate is fixed on a side of switching valve rotor portion, an end of deciding valve plate is fixed on the opposite side of switching valve rotor portion, is connected with the switching valve rotor portion by deciding the closed chamber that valve plate, moving valve plate constituted; The lower end of diaphragm seal is fixed on decides on the valve plate, and the upper end of diaphragm seal covers moving valve plate, constitutes the self-closing structure valve plate of band closed chamber.Guarantee the safe and reliable of sealing; Circular valve plate contrast shutter has significantly reduced the leakage area, and helps the smooth and easy regular of thermal expansion; The valve plate of particular design can utilize the self-closing structure of pressure reduction to prevent that flue gas impurity from entering Seal cage.
Working principle of the present utility model and process are: the degree that is communicated with of stationary part and rotor portion intermediate medium passage is finished control to middle medium when rotating by valve plate.Promptly connected the intermediate medium gas of elevated pressures by suction tude, valve plate is divided into two-part up and down, and diaphragm seal and the valve plate made by elastic material form a sealed cavity.In the work, when valve plate is in when closing, because intermediate medium control switched system is open-minded, the separation gas that pressure is very high enters the cavity of valve plate, and diaphragm seal is backed down, and utilizes pressure reduction to realize isolated to flue gas; When the valve plate aperture increased and even opens, the aperture of intermediate medium control switched system also reduced thereupon and even closes, and makes that the pressure in the cavity reduces, and diaphragm seal can prevent that flue gas impurity from entering Seal cage because elasticity sets back gradually.
Beneficial effect: the beneficial effects of the utility model are intermediate medium to be controlled the control of switched system and valve plate saved independent intermediate medium control system after integrated, stopped to cause failure of apparatus from guaranteeing the safe and reliable of sealing in essence, also saved cost simultaneously because of the work of intermediate medium control system is undesired; Circular valve plate contrast shutter has significantly reduced the leakage area, and helps the smooth and easy regular of thermal expansion; The valve plate diaphragm seal can utilize the self-closing structure of pressure reduction to prevent that flue gas impurity from entering the normal operation that Seal cage helps guaranteeing this device.
Control the supply valve that switching valve has replaced former cause electric control system controls with one with the incorporate intermediate medium of valve plate, utilize the self-closing structure of pressure differential to prevent that Seal cage from advancing dirt with one.
When the baffle ventilation door actuating device was opened the air door baffle plate, intermediate medium was supplied with and is interrupted, under flexible effect.The valve plate sealing strip is closed Seal cage voluntarily.
Description of drawings
Fig. 1 is a general structure schematic representation of the present utility model.
Fig. 2 is the structural representation of A-A sectional drawing and intermediate medium control switching valve 5 among Fig. 1.
Have among the above figure electric actuator 1, diaphragm seal 2, valve body 3, band closed chamber self-closing structure valve plate 4, decide valve plate 41, moving valve plate 42, intermediate medium and control switching valve 5, switching valve stationary part 51, switching valve rotor portion 52, suction port 521, suction tude 53.
Embodiment
Below in conjunction with drawings and Examples the utility model is described further.
Embodiment of the present utility model such as Fig. 1, it is the commercial approved product that actuator 1 adopts motor or cylinder prime movers to drive operating device, diaphragm seal 2 is that materials such as elastic material such as 316LMN stainless steel, C276 nickel-base alloy constitute, valve body 3 is integrally manufactured with switching valve stationary part 51, decides valve plate 41, moving valve plate 42, switching valve rotor portion 5 employing steel pipe structures.
Structurally the utility model is made up of barge board, shell and control gear, and this smoke gas isolating baffle ventilation door comprises valve body 3, intermediate medium control switching valve 5, the electric actuator 1 of the self-closing structure valve plate of being with closed chamber; Wherein electric actuator 1, intermediate medium control switching valve 5 lay respectively at the both sides of valve body 3 outsides, the self-closing structure valve plate 4 of band closed chamber is for being positioned at valve body 3, the one end is connected with the electric actuator 1 of outside, the other end is controlled switching valve 5 with outside intermediate medium and is connected, and intermediate medium control switching valve 5 is connected with the hollow space of the self-closing structure valve plate 4 of band closed chamber; The self-closing structure valve plate 4 of this band closed chamber can be by electric actuator 1 driven rotary 90 degree, drives intermediate medium control switching valve 5 simultaneously and revolves and turn 90 degrees.
Intermediate medium control switching valve 5 is made up of switching valve stationary part 51, switching valve rotor portion 52, and wherein switching valve rotor portion 52 is hollow shaft and is arranged in switching valve stationary part 51 and can relatively rotates, and switching valve stationary part 51 is connected with suction tude 53; Be provided with a suction port 521 on the wall of switching valve rotor portion 52, this suction port 521 becomes 90 degree with the plane of the self-closing structure valve plate 4 of band closed chamber, can be connected with suction tude 53 after this suction port 521 rotates simultaneously.
The self-closing structure valve plate 4 of band closed chamber by decide valve plate 41, move valve plate 42, diaphragm seal 2 forms, one end of moving valve plate 42 is fixed on a side of switching valve rotor portion 52, an end of deciding valve plate 41 is fixed on the opposite side of switching valve rotor portion 52, is connected with switching valve rotor portion 52 by deciding the closed chamber that valve plate 41, moving valve plate 42 constituted; The lower end of diaphragm seal 2 is fixed on decides on the valve plate 41, and the upper end of diaphragm seal 2 covers moving valve plate 42, constitutes the self-closing structure valve plate 4 of band closed chamber.
Claims (3)
1, a kind of smoke gas isolating baffle ventilation door, formed by barge board, shell and control gear, be it is characterized in that this smoke gas isolating baffle ventilation door comprises valve body (3), intermediate medium control switching valve (5), the electric actuator (1) of the self-closing structure valve plate of being with closed chamber; Wherein electric actuator (1), intermediate medium control switching valve (5) lay respectively at the outside both sides of valve body (3), the self-closing structure valve plate (4) of band closed chamber is for being positioned at valve body (3), the one end is connected with the electric actuator (1) of outside, the other end is controlled switching valve (5) with outside intermediate medium and is connected, and intermediate medium control switching valve (5) is connected with the hollow space of the self-closing structure valve plate (4) of band closed chamber; The self-closing structure valve plate (4) of this band closed chamber can be by electric actuator (1) driven rotary 90 degree, drives intermediate medium control switching valve (5) simultaneously and revolves and turn 90 degrees.
2, smoke gas isolating baffle ventilation door according to claim 1, it is characterized in that: intermediate medium control switching valve (5) is made up of switching valve stationary part (51), switching valve rotor portion (52), wherein switching valve rotor portion (52) is for hollow shaft and be arranged in switching valve stationary part (51) and can relatively rotate, and switching valve stationary part (51) is connected with suction tude (53); Be provided with a suction port (521) on the wall of switching valve rotor portion (52), this suction port (521) becomes 90 degree with the plane of the self-closing structure valve plate (4) of band closed chamber, and this suction port (521) can be connected with suction tude (53) after rotating simultaneously.
3, smoke gas isolating baffle ventilation door according to claim 1, it is characterized in that: the self-closing structure valve plate (4) of band closed chamber by decide valve plate (41), move valve plate (42), diaphragm seal (2) forms, one end of moving valve plate (42) is fixed on a side of switching valve rotor portion (52), an end of deciding valve plate (41) is fixed on the opposite side of switching valve rotor portion (52), is connected with switching valve rotor portion (52) by deciding the closed chamber that valve plate (41), moving valve plate (42) constituted; The lower end of diaphragm seal (2) is fixed on decides on the valve plate (41), and the upper end of diaphragm seal (2) covers moving valve plate (42), constitutes the self-closing structure valve plate (4) of band closed chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420024997 CN2684032Y (en) | 2004-03-01 | 2004-03-01 | Smoke isolation damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420024997 CN2684032Y (en) | 2004-03-01 | 2004-03-01 | Smoke isolation damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2684032Y true CN2684032Y (en) | 2005-03-09 |
Family
ID=34606976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420024997 Expired - Lifetime CN2684032Y (en) | 2004-03-01 | 2004-03-01 | Smoke isolation damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2684032Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1295454C (en) * | 2004-03-01 | 2007-01-17 | 孙克勤 | Damper throttle for insulating smoke |
| CN102913329A (en) * | 2012-11-21 | 2013-02-06 | 江苏华强电力设备有限公司 | Baffle door device used for air inlet channel of combustion engine |
| CN107270317A (en) * | 2017-03-20 | 2017-10-20 | 南京碧林环保科技有限公司 | Inflatable Expansion sealing gas baffle door |
-
2004
- 2004-03-01 CN CN 200420024997 patent/CN2684032Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1295454C (en) * | 2004-03-01 | 2007-01-17 | 孙克勤 | Damper throttle for insulating smoke |
| CN102913329A (en) * | 2012-11-21 | 2013-02-06 | 江苏华强电力设备有限公司 | Baffle door device used for air inlet channel of combustion engine |
| CN107270317A (en) * | 2017-03-20 | 2017-10-20 | 南京碧林环保科技有限公司 | Inflatable Expansion sealing gas baffle door |
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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 |
Effective date of abandoning: 20040301 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |