CN104390224A - Waste gas switching pipeline for waste heat boiler - Google Patents
Waste gas switching pipeline for waste heat boiler Download PDFInfo
- Publication number
- CN104390224A CN104390224A CN201410608552.0A CN201410608552A CN104390224A CN 104390224 A CN104390224 A CN 104390224A CN 201410608552 A CN201410608552 A CN 201410608552A CN 104390224 A CN104390224 A CN 104390224A
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- China
- Prior art keywords
- valve
- waste gas
- heat boiler
- adjusting screw
- postive stop
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Abstract
The invention discloses a waste gas switching pipeline for a waste heat boiler, comprising a straightway pipe, a bypass pipe and a low temperature platform, wherein the bypass pipe is connected with a branch of the straightway pipe; a straightway valve is arranged in the position, which is in the vicinity of the branch, in the straightway pipe; a bypass valve is arranged in the position, which is in the vicinity of the branch, in the bypass pipe; one of the straightway valve and the bypass valve is driven by one switching motor to rotate; an adjusting screw rod is further connected between the straightway valve and the bypass valve, so that the state that one valve is opened and the other valve is closed is kept; the adjusting screw rod is longitudinally provided with two limiting baffle plates; travel switches are arranged in limited motion positions, which correspond to the two limiting baffle plates, of the low temperature platform. The waste gas switching pipeline for the waste heat boiler has the beneficial effects that the travel switches are prevented from high temperature of waste gas pipelines by means of changing the installation positions of the travel switches, and the damage/failure rate is reduced, thus the switching motor is protected from the source, and the boiler safety is guaranteed.
Description
Technical field
The present invention relates to a kind of boiler, particularly a kind of Novel waste heat boiler, there is higher security.
Background technology
Switch in pipeline at the waste gas for waste heat boiler, often occur leading directly to the switch motor of bypass by the fault of burning.In the actual use in some power station, travel switch burns and reaches 200 for 1 year, and switch motor burns 10 times in 1 year, repeatedly narrowly leads to major accident.
Through carefully analyzing, the installation position that its reason mostly is travel switch is equipped with problem, and travel switch is arranged on 300 ° ~ 600 ° exhaust pipings, and place works in high temperature environments, is easy to just be burned, thus cause switch motor always electric work thus damage.
Therefore, be necessary that switching pipeline to waste gas carries out structure improvement, to improve security.
Summary of the invention
Goal of the invention of the present invention is: for above-mentioned Problems existing, and provide a kind of waste gas for waste heat boiler to switch pipeline, security is higher.
The technical solution used in the present invention is such:
A kind of waste gas for waste heat boiler switches pipeline, the bypass pipe comprising straight pipe and be connected with its bifurcated, near the inherent bifurcated of straight pipe, direct-through valve is set, near the inherent bifurcated of bypass pipe, bypath valve is set, described direct-through valve, one of them of bypath valve drives rotation by a switch motor, between direct-through valve with bypath valve, be also connected an adjusting screw(rod) keep a valve open, the state of a valve closing, also comprise low temperature platform, described adjusting screw(rod) longitudinally arranges two postive stop baffles, on described low temperature platform, the extreme sport position of corresponding two postive stop baffles arranges travel switch.
The effect of adjusting screw(rod) is: the direct-through valve of closing straight pipe while opening the bypath valve of bypass pipe, or close bypath valve while opening direct-through valve, thus realize high-temp waste gas from bypass pipe by directly discharging or entering boiler heating from straight pipe.
Move to after extreme position realizes the state of a valve open, a valve closing when adjusting screw(rod), the postive stop baffle on adjusting screw(rod) touches travel switch, thus stops the action of switch motor.
As preferred embodiment, the postive stop baffle on described adjusting screw(rod) is angle steel.
As preferred embodiment, described travel switch has two, the extreme position that a corresponding postive stop baffle of travel switch moves towards bypath valve, the extreme position that another travel switch another postive stop baffle corresponding moves towards direct-through valve.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows: by changing the installation site of travel switch, it is made to avoid being subject to the high temperature of exhaust piping, reduce and damage fault rate, and then protect switch motor from source, protection boiler safety; After utilizing structure of the present invention, use the fault not having the routine travel switch of generation one to be burned in practice the inside of 9 months.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Mark in figure: 1 is straight pipe, and 2 is switch motor, and 3 is direct-through valve, and 4 is postive stop baffle, and 5 is travel switch, and 6 is low temperature platform, and 7 is adjusting screw(rod), and 8 is bypath valve, and 9 is bypass pipe.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
Embodiment:
As shown in Figure 1, a kind of waste gas for waste heat boiler switches pipeline, the bypass pipe 9 comprising straight pipe 1 and be connected with its bifurcated, near the inherent bifurcated of straight pipe 1, direct-through valve 3 is set, near the inherent bifurcated of bypass pipe 9, bypath valve 8 is set, described direct-through valve 3, one of them of bypath valve 8 drives rotation by a switch motor 2, between direct-through valve 3 with bypath valve 8, be also connected an adjusting screw(rod) 7 keep a valve open, the state of a valve closing, also comprise low temperature platform 6, described adjusting screw(rod) 7 longitudinally arranges two postive stop baffles 4, on described low temperature platform 6, the extreme sport position of corresponding two postive stop baffles 4 arranges travel switch 5.
Postive stop baffle 4 on described adjusting screw(rod) 7 is angle steel.
Described travel switch 5 has two, the extreme position that a corresponding postive stop baffle 4 of travel switch 5 moves towards bypath valve 8, the extreme position that another travel switch 5 another postive stop baffle 4 corresponding moves towards direct-through valve 3.
All there is certain distance junction, described adjusting screw(rod) 7 two ends with the central rotating shaft place of valve, therefore, forms quadric chain, as shown in Figure 1.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. the waste gas for waste heat boiler switches pipeline, the bypass pipe (9) comprising straight pipe (1) and be connected with its bifurcated, direct-through valve (3) is set near straight pipe (1) inherent bifurcated, bypath valve (8) is set near bypass pipe (9) inherent bifurcated, described direct-through valve (3), one of them of bypath valve (8) is rotated by the drive of a switch motor (2), between direct-through valve (3) with bypath valve (8), be also connected an adjusting screw(rod) (7) keep a valve open, the state of a valve closing, it is characterized in that: also comprise low temperature platform (6), described adjusting screw(rod) (7) is upper longitudinally arranges two postive stop baffles (4), the extreme sport position of upper corresponding two postive stop baffles (4) of described low temperature platform (6) arranges travel switch (5).
2. a kind of waste gas for waste heat boiler according to claim 1 switches pipeline, it is characterized in that: the postive stop baffle (4) on described adjusting screw(rod) (7) is angle steel.
3. a kind of waste gas for waste heat boiler according to claim 1 switches pipeline, it is characterized in that: described travel switch (5) has two, the extreme position that a corresponding postive stop baffle (4) of travel switch (5) is moved towards bypath valve (8), the extreme position that corresponding another postive stop baffle (4) of another travel switch (5) is moved towards direct-through valve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410608552.0A CN104390224A (en) | 2014-11-04 | 2014-11-04 | Waste gas switching pipeline for waste heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410608552.0A CN104390224A (en) | 2014-11-04 | 2014-11-04 | Waste gas switching pipeline for waste heat boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104390224A true CN104390224A (en) | 2015-03-04 |
Family
ID=52608161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410608552.0A Pending CN104390224A (en) | 2014-11-04 | 2014-11-04 | Waste gas switching pipeline for waste heat boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104390224A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200940937Y (en) * | 2006-08-29 | 2007-08-29 | 新疆屯河聚酯有限责任公司 | Boiler changover device for continuous generating heat |
| CN201083387Y (en) * | 2007-07-23 | 2008-07-09 | 北京中海润达科贸有限公司 | Air fume pipe switching type catalyzing/heat storage combustion boiler |
| CN101793404A (en) * | 2010-04-09 | 2010-08-04 | 无锡华光锅炉股份有限公司 | Boiler by-pass flue |
| CN102352936A (en) * | 2011-10-11 | 2012-02-15 | 无锡市华通电力设备有限公司 | Driving mechanism for bypass reversing baffle plate of waste heat boiler |
| EP2565538A1 (en) * | 2011-08-31 | 2013-03-06 | Siemens Aktiengesellschaft | Diversion steam line |
| JP2013253603A (en) * | 2012-06-07 | 2013-12-19 | General Electric Co <Ge> | Reheat steam bypass system |
-
2014
- 2014-11-04 CN CN201410608552.0A patent/CN104390224A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200940937Y (en) * | 2006-08-29 | 2007-08-29 | 新疆屯河聚酯有限责任公司 | Boiler changover device for continuous generating heat |
| CN201083387Y (en) * | 2007-07-23 | 2008-07-09 | 北京中海润达科贸有限公司 | Air fume pipe switching type catalyzing/heat storage combustion boiler |
| CN101793404A (en) * | 2010-04-09 | 2010-08-04 | 无锡华光锅炉股份有限公司 | Boiler by-pass flue |
| EP2565538A1 (en) * | 2011-08-31 | 2013-03-06 | Siemens Aktiengesellschaft | Diversion steam line |
| CN102352936A (en) * | 2011-10-11 | 2012-02-15 | 无锡市华通电力设备有限公司 | Driving mechanism for bypass reversing baffle plate of waste heat boiler |
| JP2013253603A (en) * | 2012-06-07 | 2013-12-19 | General Electric Co <Ge> | Reheat steam bypass system |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150304 |