CN201462878U - Anti-downdraught outlet flue system of desulfurizing and absorbing tower - Google Patents
Anti-downdraught outlet flue system of desulfurizing and absorbing tower Download PDFInfo
- Publication number
- CN201462878U CN201462878U CN2009201280428U CN200920128042U CN201462878U CN 201462878 U CN201462878 U CN 201462878U CN 2009201280428 U CN2009201280428 U CN 2009201280428U CN 200920128042 U CN200920128042 U CN 200920128042U CN 201462878 U CN201462878 U CN 201462878U
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- valve
- absorbing tower
- chimney
- valve plate
- shaft
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Abstract
The utility model discloses an anti-downdraught outlet flue system of a desulfurizing and absorbing tower, which comprises an outlet flue of an absorbing tower; two ends of a flue are respectively communicated with a flue gas outlet of the desulfurizing and absorbing tower and a flue gas inlet of a chimney; and the outlet flue of the absorbing tower is provided with an isolating valve. The anti-downdraught outlet flue system cuts off the isolating valve at the outlet of the absorbing tower when one absorbing tower is stopped normally or due to fault maintenance, the positive-pressure flue gas exhausted by the other absorbing towers in normal operation can not be downdraughted into the stopped absorbing tower, thus effectively protecting the stopped absorbing tower and being beneficial to improving the maintenance safety and maintenance efficiency of failure; when the absorbing towers operate, the isolating valves are in an open position, and adopt locking bolts for self protection, thus avoiding maloperation; and when the absorbing tower is stopped for maintenance, after the locking bolts are unscrewed, the isolating valves can be closed, thus guaranteeing reliability in operation and safety in maintenance.
Description
Technical field
The utility model relates to a kind of flue gas desulfurization subsystem, the anti-exhaust pass system of pouring in down a chimney of particularly a kind of desulfuration absorbing tower.
Background technology
Coal fired power generation is one of main path of coal utilization, and coal-fired fired power generating unit need be discharged a large amount of pollutants, wherein SO
2And dust is comparatively serious to the harm of environment, also is the major pollutants that need emphasis control.Thereby, need desulphurization system be set at the fume emission place of coal fired power generation.
Flue gas desulfurization technique comprises wet desulphurization and dry desulfurization etc.The utilization of wherein wet desulphurization technology is the most extensive.The principle of wet flue gas desulfurization absorption tower is to utilize the lime stone alkaline slurry to spray from the top down, and flue gas flows from bottom to top, and lime stone slurry drops in the SO that absorbs in the dropping process in the flue gas
2, generate byproducts such as gypsum, reach the SO that removes in the flue gas
2Purpose, slough SO
2Flue gas enter chimney and enter atmosphere.Prior art for saving manufacturing cost and making the on-the-spot compactness of arranging, generally adopts a chimney to satisfy the exhaust demand on many absorption towers in practical operation.In the production normal course of operation, stop transport and need not or break down when needing maintenance in an absorption tower wherein, the flue gas that other absorption tower enters chimney can pour in down a chimney absorption tower into stoppage in transit by chimney, and the maintenance on stoppage in transit absorption tower is caused difficulty, influences overhaul efficiency simultaneously.
Therefore; need improve the shared single chimney adsorption tower smoke discharge structure of existing many stoves; the place sets up an isolating valve, at the absorption tower exhaust pass; when wherein normal stoppage in transit in an absorption tower or trouble hunting are stopped transport; the absorption tower institute discharged flue gas of other normal operation can not be poured in down a chimney into the stoppage in transit absorption tower; effective protective effect is played on the stoppage in transit absorption tower, and be beneficial to the overhaul efficiency that improves fault.
The utility model content
In view of this; the utility model provides a kind of desulfuration absorbing tower the anti-exhaust pass system of pouring in down a chimney; the place sets up an isolating valve, at the absorption tower exhaust pass; when wherein normal stoppage in transit in an absorption tower or trouble hunting are stopped transport; the absorption tower institute discharged flue gas of other normal operation can not be poured in down a chimney into the stoppage in transit absorption tower; effective protective effect is played on the stoppage in transit absorption tower, and be beneficial to the overhaul efficiency that improves fault.
Desulfuration absorbing tower of the present utility model is anti-to pour in down a chimney the exhaust pass system, and the place is provided with isolating valve, at the absorption tower exhaust pass.
Further, described isolating valve, comprises frame, valve board assembly and valve plate drive unit, valve board assembly comprises valve shaft and valve plate, and described valve shaft longitudinally center line passes valve plate and its secure fit on circumference, and the two ends that valve shaft stretches out valve plate are passed frame respectively and are rotatably assorted with frame; The valve plate drive unit comprises motor and speed changer, and the power output shaft of described speed changer and valve shaft are in the circumferencial direction secure fit;
Further, described valve board assembly is at least two and is set up in parallel, connect by toggle between the valve shaft of adjacent valve board component, the crank of toggle is arranged on the valve shaft end and it is in the circumferencial direction secure fit, rod hinge connection is between adjacent crank, and the power output shaft of described speed changer and a valve shaft wherein are in the circumferencial direction secure fit; Distance between the adjacent valve plate axis equals half of adjacent valve plate lateral dimension sum;
Further, also comprise the valve plate locking device, described valve plate locking device comprises that a corresponding wherein valve shaft is fixedly installed on the fixed block on the frame, be hinged with standard-sized sheet clamping screw and full cut-off clamping screw on the fixed block, all be rotary with locking nut on standard-sized sheet clamping screw and the full cut-off clamping screw, valve shaft end and its secure fit corresponding with fixed block are provided with stay, and stay is provided with and is used for the locking slot that is connected by locking nut with standard-sized sheet clamping screw or full cut-off clamping screw;
Further, described crank is a rod shaped structure, and the crank center of rod shaped structure and valve shaft are in the circumferencial direction secure fit, and the crank two ends are hinged with connecting rod respectively;
Further, also comprise absorption tower operation monitoring system and automatic control system, the signal output part of described absorption tower operation monitoring system links to each other with automatic control system, and motor connects power supply by automatic control system;
Further, described speed changer also is provided with manual power shaft, and described manual power shaft is provided with handwheel in the circumferencial direction secure fit.
The beneficial effects of the utility model: the anti-exhaust pass system of pouring in down a chimney of desulfuration absorbing tower of the present utility model, on the exhaust pass on absorption tower, isolating valve, is set, when normal stoppage in transit in an absorption tower therein or trouble hunting are stopped transport, cut off its outlet isolating valve,, the absorption tower institute discharged flue gas of other normal operation can not be poured in down a chimney into the stoppage in transit absorption tower, effective protective effect is played on the stoppage in transit absorption tower, and be beneficial to the overhaul efficiency that improves fault; Adopt the absorption tower to stop transport and monitor and the chain structure of isolating valve, drive motors, in time cut off flue when stopping transport on the absorption tower automatically, automaticity is higher, and is reliable, minimizing labour intensity.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the utility model isolating valve, structural representation;
Fig. 3 be Fig. 2 along A to view;
Fig. 4 is Fig. 3 B place enlarged drawing.
The specific embodiment
Fig. 1 is a structural representation of the present utility model, Fig. 2 is the utility model isolating valve, structural representation, Fig. 3 be Fig. 2 along A to view, Fig. 4 is Fig. 3 B place enlarged drawing, as shown in the figure: the anti-exhaust pass system of pouring in down a chimney of the desulfuration absorbing tower of present embodiment, comprise absorption tower exhaust pass 1, described flue two ends are communicated with desulfuration absorbing tower 3 exhanst gas outlets and chimney 4 smoke inlets respectively, and absorption tower exhaust pass 1 is provided with isolating valve, 2.
In the present embodiment, described isolating valve, 2 comprises frame 22, valve board assembly and valve plate drive unit, valve board assembly comprises that valve shaft 23 (has four valve shafts among the figure, four valve plates, only mark the Reference numeral of a valve shaft) and valve plate 21, described valve shaft 23 longitudinally center line passes valve plate 21 and its secure fit on circumference, and the two ends that valve shaft 23 stretches out valve plate 21 are passed frame 22 respectively and are rotatably assorted with frame 22; The valve plate drive unit comprises motor 26 and speed changer 27, and the power output shaft of described speed changer 27 and valve shaft 23 are in the circumferencial direction secure fit; Adopt the version that is similar to butterfly valve between valve plate 21 and the frame 22, simple to operation, be suitable for the low pressure flue gas and use.
In the present embodiment, four of described valve board assemblies are set up in parallel, connect by toggle between the valve shaft 23 of adjacent valve board component, the crank 24 of toggle is arranged on valve shaft 23 ends and it is in the circumferencial direction secure fit, connecting rod 25 is articulated between the adjacent crank, and the power output shaft of described speed changer 27 and a valve shaft 23 (present embodiment is seen as several second valve shaft from figure) wherein are in the circumferencial direction secure fit; Distance between adjacent valve shaft 23 axis equals half of adjacent valve plate lateral dimension sum, guarantees to close the sealing between the raft plate of back; Adopt a plurality of valve plates 21 to be set up in parallel, can increase the flexibility of switch, reduce the power consumption of switch valve plate.
In the present embodiment, also comprise the valve plate locking device, described valve plate locking device comprise correspondence wherein a valve shaft 23 (present embodiment is seen as several second valve shaft from figure) be fixedly installed on the fixed block 29 on the frame 22, be hinged with standard-sized sheet clamping screw 31 and full cut-off clamping screw 32 on the fixed block 29, all be rotary with locking nut on standard-sized sheet clamping screw 31 and the full cut-off clamping screw 32, valve shaft 23 ends and its secure fit corresponding with fixed block 23 are provided with stay 30, and stay 30 is provided with and is used for the locking slot that is connected by locking nut with standard-sized sheet clamping screw or full cut-off clamping screw;
As shown in the figure, when valve plate made the flue standard-sized sheet, standard-sized sheet clamping screw 31 passes the locking slot of stay 30, and was fixedly connected by locking nut, because standard-sized sheet clamping screw 31 is an articulated structure, thereby can adjust link position flexibly; When needs valve plate 31 makes the flue complete shut-down, the locking nut of standard-sized sheet clamping screw 31 comes loose, make the valve shaft half-twist, full cut-off clamping screw 32 is passed the locking slot of stay 30, and screw locking nut on the full cut-off clamping screw 32, with valve plate 21 locking positions, same, because full cut-off clamping screw 32 is an articulated structure, thereby can adjust link position flexibly; When moving on the absorption tower, isolating valve, is in opening, and adopts the self-shield of standard-sized sheet clamping screw, avoids maloperation; When absorption tower maintenance is stopped transport, open the standard-sized sheet clamping screw after, just can close isolating valve,, thus the reliability when guaranteeing operation, the security during maintenance.Flexible and convenient to use, can effectively prevent maloperation.
In the present embodiment, described crank 24 is a rod shaped structure, and crank 24 centers of rod shaped structure and valve shaft 23 are in the circumferencial direction secure fit, and crank 24 two ends are hinged with connecting rod 25 respectively; Balance is better in the running, is beneficial to the reduction fault rate, improves the service life of mechanism.
In the present embodiment, also comprise absorption tower operation monitoring system 5 and automatic control system 6, the signal output part of described absorption tower operation monitoring system 5 links to each other with automatic control system 6, motor 26 connects power supply 7 by automatic control system 6, realization automation control, adapt to and produce needs, in time close and open isolating valve,, reduce human cost.
In the present embodiment, described speed changer 27 also is provided with manual power shaft, and described manual power shaft is provided with handwheel 28 in the circumferencial direction secure fit, and is convenient when electrical system breaks down, and the hand switch valve plate is easy to use.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (7)
1. a desulfuration absorbing tower is prevented pouring in down a chimney the exhaust pass system, comprises the absorption tower exhaust pass, and described flue two ends are communicated with desulfuration absorbing tower exhanst gas outlet and chimney smoke inlet respectively, and it is characterized in that: the absorption tower exhaust pass is provided with isolating valve.
2. the anti-exhaust pass system of pouring in down a chimney of desulfuration absorbing tower according to claim 1, it is characterized in that: described isolating valve, comprises frame, valve board assembly and valve plate drive unit, valve board assembly comprises valve shaft and valve plate, described valve shaft longitudinally center line passes valve plate and its secure fit on circumference, and the two ends that valve shaft stretches out valve plate are passed frame respectively and are rotatably assorted with frame; The valve plate drive unit comprises motor and speed changer, and the power output shaft of described speed changer and valve shaft are in the circumferencial direction secure fit.
3. the anti-exhaust pass system of pouring in down a chimney of desulfuration absorbing tower according to claim 2, it is characterized in that: described valve board assembly is at least two and is set up in parallel, connect by toggle between the valve shaft of adjacent valve board component, the crank of toggle is arranged on the valve shaft end and it is in the circumferencial direction secure fit, rod hinge connection is between adjacent crank, and the power output shaft of described speed changer and a valve shaft wherein are in the circumferencial direction secure fit; Distance between the adjacent valve plate axis equals half of adjacent valve plate lateral dimension sum.
4. the anti-exhaust pass system of pouring in down a chimney of desulfuration absorbing tower according to claim 3, it is characterized in that: also comprise the valve plate locking device, described valve plate locking device comprises that a corresponding wherein valve shaft is fixedly installed on the fixed block on the frame, be hinged with standard-sized sheet clamping screw and full cut-off clamping screw on the fixed block, all be rotary with locking nut on standard-sized sheet clamping screw and the full cut-off clamping screw, valve shaft end and its secure fit corresponding with fixed block are provided with stay, and stay is provided with and is used for the locking slot that is connected by locking nut with standard-sized sheet clamping screw or full cut-off clamping screw.
5. desulfuration absorbing tower according to claim 4 is anti-to pour in down a chimney the exhaust pass system, and it is characterized in that: described crank is a rod shaped structure, and the crank center of rod shaped structure and valve shaft are in the circumferencial direction secure fit, and the crank two ends are hinged with connecting rod respectively.
6. the anti-exhaust pass system of pouring in down a chimney of desulfuration absorbing tower according to claim 5, it is characterized in that: also comprise absorption tower operation monitoring system and automatic control system, the signal output part of described absorption tower operation monitoring system links to each other with automatic control system, and motor connects power supply by automatic control system.
7. desulfuration absorbing tower according to claim 5 is anti-to pour in down a chimney the exhaust pass system, and it is characterized in that: described speed changer also is provided with manual power shaft, and described manual power shaft is provided with handwheel in the circumferencial direction secure fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201280428U CN201462878U (en) | 2009-07-14 | 2009-07-14 | Anti-downdraught outlet flue system of desulfurizing and absorbing tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201280428U CN201462878U (en) | 2009-07-14 | 2009-07-14 | Anti-downdraught outlet flue system of desulfurizing and absorbing tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201462878U true CN201462878U (en) | 2010-05-12 |
Family
ID=42390230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201280428U Expired - Lifetime CN201462878U (en) | 2009-07-14 | 2009-07-14 | Anti-downdraught outlet flue system of desulfurizing and absorbing tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201462878U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200288A (en) * | 2011-04-11 | 2011-09-28 | 广西志远节能环保设备有限公司 | Gas waste heat recovery device for coal-fired boiler |
| CN103949138A (en) * | 2014-03-14 | 2014-07-30 | 航天环境工程有限公司 | Absorption tower for preventing flue gas from flowing backward and application thereof |
-
2009
- 2009-07-14 CN CN2009201280428U patent/CN201462878U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200288A (en) * | 2011-04-11 | 2011-09-28 | 广西志远节能环保设备有限公司 | Gas waste heat recovery device for coal-fired boiler |
| CN102200288B (en) * | 2011-04-11 | 2013-08-28 | 广西志远节能环保设备有限公司 | Gas waste heat recovery device for coal-fired boiler |
| CN103949138A (en) * | 2014-03-14 | 2014-07-30 | 航天环境工程有限公司 | Absorption tower for preventing flue gas from flowing backward and application thereof |
| CN103949138B (en) * | 2014-03-14 | 2015-08-19 | 航天环境工程有限公司 | A kind of stop flue gas to pour in down a chimney absorption tower and application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Chongqing Puyuan Chemical Industry Co., Ltd. Assignor: CPI Yuanda Environmental-Protection Engineering Co., Ltd. Contract record no.: 2010500000015 Denomination of utility model: Anti-downdraught outlet flue system of desulfurizing and absorbing tower Granted publication date: 20100512 License type: Exclusive License Record date: 20100413 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100512 |
|
| CX01 | Expiry of patent term |