CN104728469A - Waste heat boiler three-way baffle valve - Google Patents
Waste heat boiler three-way baffle valve Download PDFInfo
- Publication number
- CN104728469A CN104728469A CN201510139272.4A CN201510139272A CN104728469A CN 104728469 A CN104728469 A CN 104728469A CN 201510139272 A CN201510139272 A CN 201510139272A CN 104728469 A CN104728469 A CN 104728469A
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- CN
- China
- Prior art keywords
- valve
- heat boiler
- exhaust heat
- plate
- side outlet
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
- F16K11/052—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with pivoted closure members, e.g. butterfly valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The invention provides a waste heat boiler three-way baffle valve. The valve is composed of a valve body, a driving device, driving shafts, connecting rod mechanisms, a valve plate, a sealing system and a control system, the inner surface of a passageway, connected by a fuel gas inlet and a bypass side outlet in the valve body, of the waste heat boiler three-way baffle valve is changed from right angle connection to circular arc transitional connection, the included angel between the valve seat position of a waste heat boiler side outlet and the valve seat position of the bypass side outlet is an acute angle, the driving shafts are driven by the driving device, then the valve plate is driven by the connecting rod mechanisms, and in the process of being rotated from the closed bypass side outlet to the closed waste heat boiler side outlet, the rotation angle of the valve plate is smaller than 90 degrees. Meanwhile, the upper surface of the valve plate further serves as a guide plate, so that pressure losses of fuel gas in the turning process are smaller, the time for closing the valve plate is shorter, the output power of a gas turbine is raised, and the heat rate of the gas turbine is reduced.
Description
technical field:
The present invention relates to the technical fields such as high-temperature flue gas UTILIZATION OF VESIDUAL HEAT IN, fuel engine power generation, combustion-steaming circulating power station, specifically exhaust heat boiler three-way baffle plate valve.
background technique:
Due to the superior function of gas turbine installation, have that volume is little simultaneously, specific power is large, start the features such as fast, easy to maintenance, be widely used in the industrial fields such as industrial generation, combustion-steaming circulating power station, offshore platform, natural-gas transfer pipeline, in general, the exhaust back pressure of gas turbine often increases by 1 kPa, its output power is by decline 0.6 % ~ 0.7 %, and heat consumption rate will increase 0.6 % ~ 0.7 %.But install exhaust heat boiler additional after combustion turbine exhaustion after, exhaust back pressure about increases 1.4 kPa ~ 2.5 kPa, this reduces by 0.9 % ~ 1.6 % by causing the output power of gas turbine, heat consumption rate is by increase 0.9 % ~ 1.7 %, and between gas turbine and exhaust heat boiler, an equipment usually will be selected to realize the conversion of gas turbine simple cycle and combined cycle, and by this devices allocation combustion turbine exhaustion amount, regulate the load of exhaust heat boiler, it is one of visual plant becoming gas-turbine waste heat boiler, and this equipment is exactly exhaust heat boiler three-way baffle plate valve;
Common exhaust heat boiler three-way baffle plate valve, it is by valve body, drive unit, rotatingshaft, linkage mechanism, valve plate, sealing system and control system composition, sealing system is by the sealing plate on valve plate, valve seat, control valve and blower fan formed, exhaust heat boiler three-way baffle plate valve belongs to the T-shaped threeway in right angle, there is fuel gas inlet, bypass-side outlet and exhaust heat boiler side outlet, when the valve plate of three-way baffle plate valve is in the seating position that exhaust heat boiler side outlet is closed and bypass side outlet is closed, to seal valve seat, the Seal cage of three-way baffle plate valve is that the sealing air room surrounded by the elastic packing plate on valve plate and valve seat ensures, in air chamber, passed into the air of certain pressure respectively through bypass-side valve seat air intlet and exhaust heat boiler side valve seat air intlet by blower fan, utilize air compaction to seal and ensure sealing effect.When valve plate is in closedown bypass-side exit position, combustion gas enters exhaust heat boiler from exhaust heat boiler side outlet, and exhaust heat boiler is in oepration at full load, is namely gas turbine-steam turbine combined-cycle operation state, when valve plate is in middle any position, combustion gas is discharged to bypass duct and exhaust heat boiler respectively, can change the parameters such as exhaust heat boiler steam output, realize the adjustment of exhaust heat boiler load, run when gas turbine is in simple cycle, rotatingshaft is driven by drive unit, valve plate is driven again by linkage mechanism, valve plate forwards from the horizontal position of closing bypass-side outlet the vertical position closing exhaust heat boiler side outlet to, valve plate rotates angle is in this process 90 °, valve plate is in the seating position of closing exhaust heat boiler side outlet, it is according to 90 ° of right-angled bends that combustion gas is directly discharged to the flow process of bypass-side outlet from fuel gas inlet, this makes the flow field of combustion gas after flowing out bypass side outlet very uneven, cause the pressure loss of turning in flowing larger, the time of closing valve plate is longer, and the output power of gas turbine reduces, heat consumption rate is higher.
summary of the invention:
For the problems referred to above, the invention provides a kind of exhaust heat boiler three-way baffle plate valve.
Technological scheme of the present invention is: exhaust heat boiler three-way baffle plate valve, comprise valve body, the valve body left and right sides is respectively equipped with fuel gas inlet, exhaust heat boiler side outlet, upside is provided with bypass-side outlet, the valve body that exhaust heat boiler side outlet and upside are provided with bypass-side outlet intersection is provided with live axle, and play axle and be connected by linkage mechanism with valve plate, live axle stretches out the part flat key connecting drive device of valve body;
Valve plate is by the action of linkage mechanism, and valve plate rest position is respectively: withstand on body base inwall bottom valve plate; Withstand on the inwall of the valve body between fuel gas inlet and exhaust heat boiler side outlet bottom valve plate, valve plate both sides are provided with elastic packing plate, on valve interior wall, the rest position of elastic packing plate is respectively provided with a circle valve seat, valve seat on elastic packing plate and valve interior wall surrounds confined air air chamber, housing on the valve body of each valve seat side has through hole connecting bypass side valve seat air intlet, exhaust heat boiler side valve seat air intlet respectively, bypass-side valve seat air intlet is connected with Fan pipeline respectively by control valve with exhaust heat boiler side valve seat air intlet.
Valve body housing angle transition between fuel gas inlet and exhaust heat boiler side outlet is circular arc.
Withstand on body base inwall bottom described valve plate, in exhaust heat boiler side outlet side, the angle of valve plate and body base is that acute angle is arranged, its angle is between 50 ° ~ 70 °.
The present invention has following beneficial effect: on the valve body of exhaust heat boiler three-way baffle plate valve, fuel gas inlet and bypass-side export the runner internal surface that is connected and connected by right angle and make arc transition into and connect, the angle of the seating position that the seating position of exhaust heat boiler side outlet and bypass-side export is acute angle, rotatingshaft is driven by drive unit, valve plate is driven again by linkage mechanism, forward valve plate rotation angle the process of closing exhaust heat boiler side outlet position from the position closing bypass-side outlet to and be less than 90 °, the upper surface of valve plate also plays the effect of guide plate simultaneously, so not only make the pressure loss of combustion gas in turning process less, the time of closing valve plate is shorter, but also improve the output power of gas turbine and reduce heat consumption rate.
accompanying drawing illustrates:
Accompanying drawing 1 is structural representation of the present invention;
Accompanying drawing 2 is sectional drawings of accompanying drawing 1;
Accompanying drawing 3 is accompanying drawing 1 operating diagram;
Accompanying drawing 4 is structural representations of sealing air room in the present invention.
1-valve body in figure, 2-drive unit, 3-linkage mechanism, 4-live axle, 5-valve plate, 6-blower fan, 7-valve seat, 8-elastic packing plate, 9-control valve, 10-fuel gas inlet, 11-exhaust heat boiler side outlet, 12-bypass-side exports, 13-bypass-side valve seat air intlet, 14-exhaust heat boiler side valve seat air intlet, 15-angle, 16-circular arc, 17-sealing air room.
embodiment:
Below in conjunction with accompanying drawing, the invention will be further described:
Shown in Fig. 1 composition graphs 2 ~ Fig. 4, exhaust heat boiler three-way baffle plate valve, comprise valve body 1, valve body 1 left and right sides is respectively equipped with fuel gas inlet 10, exhaust heat boiler side outlet 11, upside is provided with bypass-side outlet 12, and exhaust heat boiler side outlet 11 and upside are provided with the valve body 1 that bypass-side exports 12 intersections and are provided with live axle 4, play axle 4 to be connected by linkage mechanism 3 with valve plate 5, live axle 4 stretches out the part flat key connecting drive device 2 of valve body 1;
Valve plate 5 is by the action of linkage mechanism 3, and valve plate 5 rest position is respectively: withstand in valve body 1 bottom interior wall bottom valve plate 5, withstand on the inwall of the valve body 1 between fuel gas inlet 10 and exhaust heat boiler side outlet 11 bottom valve plate 5, valve plate 5 both sides are provided with elastic packing plate 8, on valve body 1 inwall, the rest position of elastic packing plate 8 is respectively provided with a circle valve seat 7, elastic packing plate 8 surrounds confined air air chamber 17 with the valve seat 7 on valve body 1 inwall, housing on the valve body 1 of each valve seat 7 side has through hole connecting bypass side valve seat air intlet 13 respectively, exhaust heat boiler side valve seat air intlet 14, bypass-side valve seat air intlet 13 is connected with blower fan 6 pipeline respectively by control valve 9 with exhaust heat boiler side valve seat air intlet 14.
Valve body 1 housing angle transition between fuel gas inlet 10 and exhaust heat boiler side outlet 11 is circular arc 16 shape.
Withstand in valve body 1 bottom interior wall bottom described valve plate 5, in exhaust heat boiler side outlet 11 side, valve plate 5 is arranged in acute angle with the angle 15 bottom valve body 1, and its angle is between 50 ° ~ 70 °.
When combustion gas flows into three-way baffle plate valve from fuel gas inlet 10, when exhaust heat boiler side outlet 11 is closed, combustion gas is turned slowly through circular arc 16, flow out from bypass-side outlet 12, the upper surface of valve plate 5 also can play the effect of guide plate simultaneously, so not only make the pressure loss of combustion gas in turning process less, and the time of closing valve plate 5 is shorter.
Position when valve plate 5 is positioned at bypass-side port closing, when combustion gas flows into three-way baffle plate valve from fuel gas inlet 10, because bypass-side outlet 12 is closed, combustion gas is directly flowed out from exhaust heat boiler side outlet 11.
When the valve plate 5 of three-way baffle plate valve is in the seating position that exhaust heat boiler side outlet 11 is closed and bypass side outlet 12 is closed, to seal valve seat 7, the sealing of three-way baffle plate valve is that the sealing air room 17 surrounded by the elastic packing plate 8 on valve plate 5 and valve seat 7 ensures, in air chamber, passed into the air of certain pressure by blower fan 6 respectively through bypass-side valve seat air intlet 13 and exhaust heat boiler side valve seat air intlet 14, utilize air compaction to seal and ensure sealing effect.
When valve plate 5 be in close bypass-side export 12 position time, combustion gas enters exhaust heat boiler from exhaust heat boiler side outlet 11, and exhaust heat boiler is in oepration at full load, is namely combustion-steam combined-cycle operation state; When valve plate 5 mediates any position, combustion gas is discharged in bypass duct and exhaust heat boiler respectively, can change the parameters such as exhaust heat boiler steam output, realize the adjustment of exhaust heat boiler load; When valve plate 5 is in the position closing exhaust heat boiler side outlet 11, be namely that gas turbine simple cycle is run.
Claims (3)
1. an exhaust heat boiler three-way baffle plate valve, comprise valve body (1), it is characterized in that: valve body (1) left and right sides is respectively equipped with fuel gas inlet (10), exhaust heat boiler side outlet (11), upside is provided with bypass-side outlet (12), the valve body (1) that exhaust heat boiler side outlet (11) and upside are provided with bypass-side outlet (12) intersection is provided with live axle (4), play axle (4) to be connected by linkage mechanism (3) with valve plate (5), live axle (4) stretches out the part flat key connecting drive device (2) of valve body (1),
Valve plate (5) is by the action of linkage mechanism (3), and valve plate (5) rest position is respectively: valve plate (5) bottom withstands in valve body (1) bottom interior wall, valve plate (5) bottom withstands on the inwall of the valve body (1) between fuel gas inlet (10) and exhaust heat boiler side outlet (11), valve plate (5) both sides are provided with elastic packing plate (8), on valve body (1) inwall, the rest position of elastic packing plate (8) is respectively provided with a circle valve seat (7), elastic packing plate (8) surrounds confined air air chamber (17) with the valve seat (7) on valve body (1) inwall, housing on the valve body (1) of each valve seat (7) side has through hole connecting bypass side valve seat air intlet (13) respectively, exhaust heat boiler side valve seat air intlet (14), bypass-side valve seat air intlet (13) is connected with blower fan (6) pipeline respectively by control valve (9) with exhaust heat boiler side valve seat air intlet (14).
2. exhaust heat boiler three-way baffle plate valve according to claim 1, is characterized in that: the valve body 1 housing angle transition between fuel gas inlet (10) and exhaust heat boiler side outlet (11) is circular arc (16) shape.
3. exhaust heat boiler three-way baffle plate valve according to claim 1, it is characterized in that: described valve plate (5) bottom withstands in valve body (1) bottom interior wall, in exhaust heat boiler side outlet (11) side, valve plate (5) is arranged in acute angle with the angle (15) of valve body (1) bottom, and its angle is between 50 ° ~ 70 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510139272.4A CN104728469B (en) | 2015-03-28 | 2015-03-28 | Waste heat boiler three-way baffle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510139272.4A CN104728469B (en) | 2015-03-28 | 2015-03-28 | Waste heat boiler three-way baffle valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104728469A true CN104728469A (en) | 2015-06-24 |
| CN104728469B CN104728469B (en) | 2017-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510139272.4A Active CN104728469B (en) | 2015-03-28 | 2015-03-28 | Waste heat boiler three-way baffle valve |
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| Country | Link |
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| CN (1) | CN104728469B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504674A (en) * | 2017-08-17 | 2017-12-22 | 尉海潮 | Two-chamber stove |
| CN109268520A (en) * | 2018-12-03 | 2019-01-25 | 安徽荣达阀门有限公司 | A kind of overturning closed type gate valve flow control mechanism |
| CN113171682A (en) * | 2021-04-25 | 2021-07-27 | 浙江兰电环保集团有限公司 | Semi-dry FGD flue gas system based on baffle door drop-out plugging |
| CN113171681A (en) * | 2021-04-25 | 2021-07-27 | 浙江兰电环保集团有限公司 | Semi-dry FGD flue gas system based on double absorption towers |
| CN113274869A (en) * | 2021-05-17 | 2021-08-20 | 浙江兰电环保集团有限公司 | Bypass smoke exhaust device for semidry desulfurization |
| CN113280156A (en) * | 2021-07-26 | 2021-08-20 | 南通宏耀锅炉辅机有限公司 | Improved three-way baffle valve for waste heat boiler |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10121996A (en) * | 1996-10-18 | 1998-05-12 | Sumitomo Electric Ind Ltd | Three way valve and exhaust gas processing device using it |
| CN201386832Y (en) * | 2009-03-09 | 2010-01-20 | 温州超越阀门有限公司 | Three-way butterfly valve |
| CN103939640A (en) * | 2013-01-21 | 2014-07-23 | 上海熊猫机械(集团)有限公司 | Swing three-way check valve |
| CN204512522U (en) * | 2015-03-28 | 2015-07-29 | 中国船舶重工集团公司第七�三研究所 | Exhaust heat boiler three-way baffle plate valve |
-
2015
- 2015-03-28 CN CN201510139272.4A patent/CN104728469B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10121996A (en) * | 1996-10-18 | 1998-05-12 | Sumitomo Electric Ind Ltd | Three way valve and exhaust gas processing device using it |
| CN201386832Y (en) * | 2009-03-09 | 2010-01-20 | 温州超越阀门有限公司 | Three-way butterfly valve |
| CN103939640A (en) * | 2013-01-21 | 2014-07-23 | 上海熊猫机械(集团)有限公司 | Swing three-way check valve |
| CN204512522U (en) * | 2015-03-28 | 2015-07-29 | 中国船舶重工集团公司第七�三研究所 | Exhaust heat boiler three-way baffle plate valve |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504674A (en) * | 2017-08-17 | 2017-12-22 | 尉海潮 | Two-chamber stove |
| CN107504674B (en) * | 2017-08-17 | 2024-01-02 | 尉海潮 | Double-cavity furnace |
| CN109268520A (en) * | 2018-12-03 | 2019-01-25 | 安徽荣达阀门有限公司 | A kind of overturning closed type gate valve flow control mechanism |
| CN113171682A (en) * | 2021-04-25 | 2021-07-27 | 浙江兰电环保集团有限公司 | Semi-dry FGD flue gas system based on baffle door drop-out plugging |
| CN113171681A (en) * | 2021-04-25 | 2021-07-27 | 浙江兰电环保集团有限公司 | Semi-dry FGD flue gas system based on double absorption towers |
| CN113171682B (en) * | 2021-04-25 | 2022-03-18 | 浙江兰电环保集团有限公司 | Semi-dry FGD flue gas system based on baffle door drop-out plugging |
| CN113171681B (en) * | 2021-04-25 | 2022-03-18 | 浙江兰电环保集团有限公司 | Semi-dry FGD flue gas system based on double absorption towers |
| CN113274869A (en) * | 2021-05-17 | 2021-08-20 | 浙江兰电环保集团有限公司 | Bypass smoke exhaust device for semidry desulfurization |
| CN113274869B (en) * | 2021-05-17 | 2022-04-26 | 浙江兰电环保集团有限公司 | Bypass smoke exhaust device for semidry desulfurization |
| CN113280156A (en) * | 2021-07-26 | 2021-08-20 | 南通宏耀锅炉辅机有限公司 | Improved three-way baffle valve for waste heat boiler |
| CN113280156B (en) * | 2021-07-26 | 2021-09-17 | 南通宏耀锅炉辅机有限公司 | Improved three-way baffle valve for waste heat boiler |
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|---|---|
| CN104728469B (en) | 2017-05-10 |
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