CN2650855Y - By-pass flue gas zero leakage apparatus - Google Patents
By-pass flue gas zero leakage apparatus Download PDFInfo
- Publication number
- CN2650855Y CN2650855Y CN 03232177 CN03232177U CN2650855Y CN 2650855 Y CN2650855 Y CN 2650855Y CN 03232177 CN03232177 CN 03232177 CN 03232177 U CN03232177 U CN 03232177U CN 2650855 Y CN2650855 Y CN 2650855Y
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- CN
- China
- Prior art keywords
- flue gas
- valve
- flue
- utility
- model
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- Expired - Lifetime
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Abstract
The utility model discloses a bypass flue leakage-free apparatus, which comprises a flue gas inlet duct and a flue gas outlet duct on a bypass flue; the bypass flue leakage-free apparatus is characterized in: a flue gas cut-off valve is connected by flanged connection between the flue gas inlet duct and the flue gas outlet duct, a valve stem is mounted on the front-end of the piston of a cylinder, a raft plank designed to seal the valve base is mounted on the front-end of the valve stem. A seal ring is mounted on the bottom of the raft plank. The utility model only consumes compressed air during the valve open/close action, and the bypass flue only operates for a short time when the flue gas exceeds the predefined temperature, and the open time of the flue gas cut-off valve is not long (several times a year); therefore, the operation cost is almost zero, and the competitiveness of the product is improved. The utility model can implement zero leakage of dust and ensure a bag filter to remove dust at a high efficiency; the utility model is simple in structure, small in size, light in weight, low in investment and operation cost, and has high competitiveness, and is easy to install.
Description
Technical field
The utility model relates to flue gas processing equipment of boiler, especially relates to a kind of by-pass flue zero leakage device that is used for sack cleaner.
Background technology
The sack cleaner abnormal conditions such as can running into the flue gas overtemperature that are in operation do not take measures to damage filter bag.By-pass flue is set up in employing and bypath valve is one of effective way of protection filter bag; and normally by set up by-pass flue and bypath valve in the device for preventing leakage of logical sealing wind realize; but this appliance arrangement complexity; one-time investment cost height; need constantly to feed sealing wind during operation; so just improve the operating cost of sack cleaner, influenced the competitiveness of product in market.
Summary of the invention
Thereby the purpose of this utility model be to provide a kind of by install the flue gas stop valve realize the zero leakage of dust guarantee sack cleaner can high-effective dust-removing, little, the lightweight by-pass flue zero leakage of volume device.
The purpose of this utility model is achieved in that the utility model comprises that the flue gas of by-pass flue is gone into pipe and flue gas goes out pipe, feature is to enter between pipe and the smoke discharge tube at flue gas the flue gas stop valve is installed, the valve seat of flue gas stop valve enters pipe by flange and flue gas and is connected, the two ends of reducer pipe are connected with smoke discharge tube with the escape pipe of flue gas stop valve by flange respectively, cylinder and flue gas stop valve are fixed together, piston nose at cylinder is equipped with valve rod, and the valve rod front end is equipped with the valve plate that is used for seal valve seat.
In the valve plate bottom sealing ring is installed.
The utility model is equipped with the flue gas stop valve that steel construction is made owing to the flue gas at by-pass flue enters between pipe and the smoke discharge tube, and adopts flange to connect, and installs just very convenient; Seal with resistant to elevated temperatures sealing ring between the valve plate of flue gas stop valve and the valve seat, just can realize the zero leakage of dust; The lifting of valve plate and to compress be to adopt cylinder to rise, descend and realize, thereby be easy to automation control.The utility model is ability consumption of compressed air when valve opening or closing motion only, and by-pass flue also just just moves when the flue gas overtemperature, time is not long, the flue gas stop valve opening time is not long yet, only take place several times between 1 year, thereby operating cost trends towards zero, so the corresponding raising of product competitiveness.The utlity model has the zero leakage that realizes dust, guarantee sack cleaner can high-effective dust-removing, simple in structure, volume is little, in light weight, cost of investment and operating cost is all very low, product competitiveness strong, advantage very easily is installed.
Description of drawings
Fig. 1 is a cross-sectional schematic of the present utility model.
The specific embodiment
Below in conjunction with embodiment and contrast accompanying drawing the utility model is described in further detail.
The utility model comprises that the flue gas of by-pass flue is gone into pipe 1 and flue gas goes out pipe 14, enter the flue gas stop valve 4 that the steel construction manufacturing is installed between pipe 1 and the smoke discharge tube 14 at flue gas, the valve seat 3 of flue gas stop valve 4 enters pipe 1 by flange 2 and flue gas and is connected, the small-caliber end of reducer pipe 12 is connected with the escape pipe 10 of flue gas stop valve 4 by flange 11, the heavy caliber end of reducer pipe 12 is connected with smoke discharge tube 14 by flange 13, cylinder 9 is fixed together with flue gas stop valve 4, piston 8 front ends at cylinder 9 are equipped with valve rod 7, and valve rod 7 front ends are equipped with the valve plate 6 that is used for seal valve seat 3.
In valve plate 6 bottoms resistant to elevated temperatures sealing ring 5 is installed.
Use:
When alarm sound, in the time of need opening by-pass flue, the action of computer command magnetic valve, the cylinder 9 compressed airs jigger lifting piston 8 that makes progress, driving valve rod 7, valve plate 6 and sealing ring 5 moves upward, arrive the precalculated position, the flue gas of bypass successfully enters pipe 1 from flue gas and flows to flue gas through valve seat 3, escape pipe 10, the reducer pipe 12 of flue gas stop valve 4 fast and go out pipe 14; When all clear, in the time of need closing by-pass flue, the action of computer command magnetic valve, cylinder 9 inner carriers 8 move downward under the compressed air effect, and to pressing down valve plate 6, valve plate 6 and sealing ring 5 are pressed in downwards on the valve seat 3, and flue gas is by valve plate 6, sealing ring 5 blocking-up.
Claims (2)
1, a kind of by-pass flue zero leakage device, the flue gas that comprises by-pass flue goes into pipe (1) and flue gas goes out to manage (14), it is characterized in that: enter pipe (1) at flue gas) and smoke discharge tube (14) between flue gas stop valve (4) is installed, the valve seat (3) of flue gas stop valve (4) enters pipe (1) by flange (2) and flue gas and is connected, the small-caliber end of reducer pipe (12) is connected with the escape pipe (10) of flue gas stop valve (4) by flange (11), the heavy caliber end of reducer pipe (12) is connected with smoke discharge tube (14) by flange (13), cylinder (9) is fixed together with flue gas stop valve (4), piston (8) front end in cylinder (9) is equipped with valve rod (7), and valve rod (7) front end is equipped with the valve plate (6) that is used for seal valve seat (3).
2, by-pass flue zero leakage device as claimed in claim 1 is characterized in that: in valve plate (6) bottom resistant to elevated temperatures sealing ring (5) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03232177 CN2650855Y (en) | 2003-06-11 | 2003-06-11 | By-pass flue gas zero leakage apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03232177 CN2650855Y (en) | 2003-06-11 | 2003-06-11 | By-pass flue gas zero leakage apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2650855Y true CN2650855Y (en) | 2004-10-27 |
Family
ID=34326209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03232177 Expired - Lifetime CN2650855Y (en) | 2003-06-11 | 2003-06-11 | By-pass flue gas zero leakage apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2650855Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102120117A (en) * | 2010-03-15 | 2011-07-13 | 湘潭平安电气有限公司 | Gas seal type lifting bypass valve |
| CN101293165B (en) * | 2008-01-15 | 2011-10-26 | 青岛华世洁环保科技有限公司 | High-efficiency energy-saving activated carbon fiber organic waste gas recycling system |
| CN101332388B (en) * | 2008-06-24 | 2012-08-22 | 江苏宇达电站辅机阀门制造有限公司 | Shunting device of bag-type dust remover and wind sealing method |
-
2003
- 2003-06-11 CN CN 03232177 patent/CN2650855Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101293165B (en) * | 2008-01-15 | 2011-10-26 | 青岛华世洁环保科技有限公司 | High-efficiency energy-saving activated carbon fiber organic waste gas recycling system |
| CN101332388B (en) * | 2008-06-24 | 2012-08-22 | 江苏宇达电站辅机阀门制造有限公司 | Shunting device of bag-type dust remover and wind sealing method |
| CN102120117A (en) * | 2010-03-15 | 2011-07-13 | 湘潭平安电气有限公司 | Gas seal type lifting bypass valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130613 Granted publication date: 20041027 |