CN201593781U - Water-cooling support device of residual heat boiler - Google Patents
Water-cooling support device of residual heat boiler Download PDFInfo
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- CN201593781U CN201593781U CN2009202884389U CN200920288438U CN201593781U CN 201593781 U CN201593781 U CN 201593781U CN 2009202884389 U CN2009202884389 U CN 2009202884389U CN 200920288438 U CN200920288438 U CN 200920288438U CN 201593781 U CN201593781 U CN 201593781U
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- heated surface
- heat boiler
- bracing
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Abstract
The utility model discloses a water-cooling support device of a residual heat boiler for supporting high-temperature heated surface pipe bundles. The device mainly consists of a water-cooling supporting pipe, an inlet water-cooling header and an outlet water-cooling header, wherein the inlet water-cooling header and the outlet water-cooling header are communicated with the water-cooling supporting pipe; the inlet water-cooling header and the outlet water-cooling header are respectively arranged on the outsides of furnace walls at both sides; and the water-cooling supporting pipe is vertical to the heated surface pipe bundle, and comes into contact with the heated surface pipe bundle. The utility model can be widely applied to the high-temperature heated surface pipe bundles which are arranged in the high-temperature smoke area (higher than 800 DEG C) in a horizontal, vertical or inclined way, and then each row of heat exchange pipes of the heated surface is supported by the water-cooling supporting pipe, thereby firmly supporting the integrity of the high-temperature heated surface pipe bundles to prevent the pipe bundles from vibrating. The utility model has the advantages of simple structure, convenient manufacture and installation, saving of manufacture cost, long-term stable running, and sufficient utilization of residual heat.
Description
One, technical field
The utility model belongs to the waste heat boiler equipment technical field, is the improvement invention at the conventional bracing or strutting arrangement of high-temperature flue gas parameter waste heat boiler high-temperature surface tube bank.
Two, background technology
At present, widely used waste heat boiler in industrial circle, especially large-scale residual heat boiler is at the heating surface in high-temperature flue gas district, because its caliber less (being mostly φ 51 or φ 42) and pipe are longer, rigidity is relatively poor, washes away fast through flue gas, makes pipe produce vibration, long-time running will cause pipe to produce fatigability destruction, reduce boiler life.For avoiding the influence of this problem to boiler, generally the method for Cai Yonging is in the horizontally disposed several groups of supporting constructions of heating surface length direction, with the vibration that the restriction heating surface tube produces pipe because of sweep of gases, eliminates the fatigability that is caused by tube vibration and destroys.But wherein mostly the support of boiler heat-exchanging tube bundle is that tube sheet supports or the assembled casing formula supports, all need to design the buttress brace of sufficient intensity in order to support heat-exchanging tube bundle, this need consume a certain amount of heat-resisting steels, especially for flue-gas temperature＞800 ℃ waste heat boiler superheater bank bracing or strutting arrangement, because it is all bigger in the tube pitch of high-temperature flue gas district superheater bank, as it is a certain amount of high temperature resistant to adopt traditional bracing or strutting arrangement to consume, the stainless steel material of anti-flue gas corrosion, and making, more complicated when installing and overhauling, increase manufacturing cost, simultaneously, the smooth long term running of waste heat boiler is stayed hidden danger because bracing or strutting arrangement washes away via high-temperature flue gas for a long time the fatigue limit of steel is constantly reduced.
Three, summary of the invention
The purpose of this utility model just provide a kind of waste heat boiler at the water-cooled bracing or strutting arrangement of high-temperature surface tube bank in order to replace traditional supporting way, solve the deficiency of existing bracing or strutting arrangement, reduce manufacturing cost, improve the security of boiler operatiopn.
The technical solution adopted in the utility model is: waste heat boiler water-cooled bracing or strutting arrangement mainly is made of water-cooled stay pipe and the import water-cooled collection case that is communicated with the water-cooled stay pipe, outlet water-cooled collection case, import water-cooled collection case and outlet water-cooled collection case branch are in furnace wall outside, both sides, and the water-cooled stay pipe is vertical with heated surface bundle and contact with heated surface bundle.
The utility model extensively model be applicable in the high-temperature flue gas district (＞800 ℃) horizontally disposed, be in tilted layout or the tube bank of vertically arranged high-temperature surface, thereby high-temperature surface tube bank integrated support is firmly prevented tube bundle vibration.Horizontally disposed or when being in tilted layout, the water-cooled stay pipe is positioned at below the heated surface bundle when heated surface bundle, and vertically pass neutral between the high-temperature surface tube bank, each row's heat exchanger tube of heating surface is all supported by the water-cooled stay pipe; When heated surface bundle was arranged vertically, the water-cooled stay pipe was positioned at heated surface bundle one side, restriction heated surface bundle Oscillation Amplitude.Length according to heat-exchanging tube bundle is arranged 2 groups to 4 groups water-cooled stay pipes along the heated surface bundle bearing of trend.But the utlity model has simple in structure, make easy for installation, save the manufacturing cost smooth long term running, make full use of the characteristics of waste heat.
Four, description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the partial enlarged drawing of Fig. 1;
Fig. 3 is the A-A cutaway view of Fig. 2.
Five, the specific embodiment
Waste heat boiler water-cooled bracing or strutting arrangement is made up of water-cooled support 1, import water-cooled collection case 2, outlet water-cooled collection case 3, supporting rib stiffener 4, wall bushing 5, stay-warm case 6, sealant 7 etc.
Because each comb spacing of high-temperature surface tube bank 8 is all bigger, general heating surface tube centre-to-centre spacing is all between 130～150mm, and the heating surface caliber mostly is φ 51 or φ 42, and the spacing between this makes and adopts the water-cooled stay pipe to become possibility.By by one group along the horizontally disposed water-cooled stay pipe 1 of flue gas direction, and vertically pass horizontally disposed, be arranged vertically, dump neutral between the high-temperature surface tube bank 8 of layout, each row's heat exchanger tube of heating surface is all supported by water-cooled stay pipe 1, again the supporting rib stiffener by the both sides furnace wall 4 be arranged in the body of heater outside advance the cold collection case 2 of (going out) saliva, 3 assembly weldings, every water-cooled stay pipe 1 passes the wall bushing 5 and supporting rib stiffener 4 combinations of both sides furnace wall, make itself and furnace wall constitute the support loads that an integral body is born water-cooled stay pipe 1, water-cooled stay pipe 1 can be fixed with a wing furnace wall assembly welding, does not weld with the opposite side furnace wall water-cooled stay pipe 1 can be expanded to guarantee its flexibility to an end.Water inlet and emptying adapter, blowdown connection are arranged on import water-cooled collection case 2; Delivery port and emptying adapter, blowdown connection are arranged on outlet water-cooled collection case 3; Pass through the furnace wall place at water-cooled stay pipe 1 wall bushing 5 is arranged.Water inlet on the water-cooled collection case, delivery port and emptying adapter, blowdown connection are equipped with by-pass valve control to guarantee normal operation of boiler, the water inlet of water-cooled bracing or strutting arrangement are connected with external pipeline with delivery port to get final product again.At import water-cooled collection case 2 and outlet water-cooled collection case 3 outsides stay-warm case 6 is arranged, stay-warm case 6 is fixed by furnace wall supporting rib stiffener 4 and furnace wall; In stay-warm case 6 and water inlet, delivery port, emptying adapter, blowdown connection joint sealant 7 is arranged.The part that stay-warm case 6 and sealant 7 will be exposed at the furnace wall outside separates to prevent the flue gas leakage and to be incubated to water-cooled collection case with the external world.Stay-warm case 6 is to manufacture with ordinary carbon steel plate and alumina silicate fiber felt to form, and makes simply, and is in light weight, the convenient installation and maintenance, and the sealant 7 on it is that the asbestos cord with heatproof fills up anti-leak-stopping cigarette with the space in sleeve pipe, and is simple and practical.Because the about 200 ℃ water of being told by this waste heat boiler economizer exit during the waste heat boiler that water-cooled supports operation of a part enters the water-cooled stay pipe, make the coolant-temperature gage after water-cooled stay pipe and the high-temperature flue gas heat exchange be heated to 220 ℃～230 ℃ drums that enter boiler again, and make the tube wall temperature be controlled at 300 ℃ all the time with interior use limit temperature far below carbon tubing (serviceability temperature of 20G steel pipe for≤430 ℃), so water-cooled stay pipe, water-cooled collection case get final product with 20G GB5310-1995 carbon steel high pressure boiler tube.Water-cooled supports selecting for use of caliber and can decide according to heated surface bundle row portion structure.The wall thickness of pipe is chosen satisfying on the basis of boiler working pressure, we recommend to use the steel pipe of φ 76X8 to be the water-cooled stay pipe, the water-cooled collecting box pipe can be selected the steel pipe of φ 159X12 for use, has not only satisfied the boiler need of work but also can reach and supported high-temperature surface and restrain needed requirement of strength.
Because the mode of many employings top suspention or lower support only plays the effect that prevents that the heating surface tube Oscillation Amplitude is excessive as arrange the water-cooled support along the tube bank length direction, guarantee that boiler can smooth long term running for vertically arranged high-temperature surface tube bank.It supports and compares with being used for water-cooled at horizontally disposed, the heated surface bundle that is in tilted layout, and water-cooled collection case changes into horizontally disposedly by being arranged vertically, and emptying that is provided with on the water-cooled collecting box pipe and blowdown connection also will be adjusted to some extent to guarantee normal operation of boiler.
After adopting this water-cooled bracing or strutting arrangement, when preventing the heating surface tube vibration,, boiler weight is alleviated to some extent owing to the consumption that has significantly reduced high temperature resistant stainless steel with the ordinary carbon steel boiler tube, more convenient than traditional bracing or strutting arrangement during fabrication, be more convenient for overhauling, save manufacturing cost.Also can heating part boiler feedwater when waste heat boiler moves, to make full use of waste heat.Receive good economic benefit and social benefit.
Claims (7)
1. waste heat boiler water-cooled bracing or strutting arrangement, it is characterized in that: it mainly is made of water-cooled stay pipe (1) and the import water-cooled collection case (2) that is communicated with water-cooled stay pipe (1), outlet water-cooled collection case (3), import water-cooled collection case (2) and outlet water-cooled collection case (3) divide and to be in furnace wall outside, both sides, and water-cooled stay pipe (1) is vertical with heated surface bundle (8) and contact with heated surface bundle (8).
2. waste heat boiler water-cooled bracing or strutting arrangement according to claim 1 is characterized in that: water-cooled stay pipe (1) is positioned at below the heated surface bundle (8).
3. waste heat boiler water-cooled bracing or strutting arrangement according to claim 1 is characterized in that: water-cooled stay pipe (1) is positioned at heated surface bundle (8) one sides.
4. according to the described waste heat boiler water-cooled of one of claim 1～3 bracing or strutting arrangement, it is characterized in that: the length according to heat-exchanging tube bundle is arranged 2 groups to 4 groups water-cooled stay pipes (1) along heated surface bundle (8) bearing of trend.
5. according to the described waste heat boiler water-cooled of one of claim 1～3 bracing or strutting arrangement, it is characterized in that: water-cooled stay pipe (1) is fixed with a wing furnace wall assembly welding, does not weld with the opposite side furnace wall; Pass through the furnace wall place at water-cooled stay pipe (1) wall bushing (5) is arranged; Establishing furnace wall supporting rib stiffener (4) at water-cooled stay pipe place through walls makes itself and furnace wall constitute an integral body.
6. waste heat boiler water-cooled bracing or strutting arrangement according to claim 1 is characterized in that: water inlet and emptying adapter, blowdown connection are arranged on import water-cooled collection case (2); Delivery port and emptying adapter, blowdown connection are arranged on outlet water-cooled collection case (3).
7. waste heat boiler water-cooled bracing or strutting arrangement according to claim 6 is characterized in that: at import water-cooled collection case (2) and outlet water-cooled collection case (3) outside stay-warm case (6) is arranged, stay-warm case (6) is fixed by furnace wall supporting rib stiffener (4) and furnace wall; In stay-warm case (6) and water inlet, delivery port, emptying adapter, blowdown connection joint sealant (7) is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202884389U CN201593781U (en) | 2009-12-28 | 2009-12-28 | Water-cooling support device of residual heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202884389U CN201593781U (en) | 2009-12-28 | 2009-12-28 | Water-cooling support device of residual heat boiler |
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| Publication Number | Publication Date |
|---|---|
| CN201593781U true CN201593781U (en) | 2010-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202884389U Expired - Fee Related CN201593781U (en) | 2009-12-28 | 2009-12-28 | Water-cooling support device of residual heat boiler |
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| CN (1) | CN201593781U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727520A (en) * | 2014-01-06 | 2014-04-16 | 中国船舶重工集团公司第七�三研究所 | Intensive heated tube bundle fixing device suitable for supercharged boiler waste heat recovery |
| CN105222121A (en) * | 2015-10-22 | 2016-01-06 | 浙江伟明环保股份有限公司 | A kind of boiler economizer |
| CN107654988A (en) * | 2017-10-12 | 2018-02-02 | 苏州海陆重工股份有限公司 | A kind of combustion engine waste heat boiler |
| CN109434313A (en) * | 2018-10-26 | 2019-03-08 | 中国电建集团山东电力建设第工程有限公司 | Tower boiler wall pipe construction method |
| CN114471001A (en) * | 2022-01-19 | 2022-05-13 | 大连理工大学 | Combined high-temperature ceramic filtering device and using method thereof |
-
2009
- 2009-12-28 CN CN2009202884389U patent/CN201593781U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727520A (en) * | 2014-01-06 | 2014-04-16 | 中国船舶重工集团公司第七�三研究所 | Intensive heated tube bundle fixing device suitable for supercharged boiler waste heat recovery |
| CN105222121A (en) * | 2015-10-22 | 2016-01-06 | 浙江伟明环保股份有限公司 | A kind of boiler economizer |
| CN107654988A (en) * | 2017-10-12 | 2018-02-02 | 苏州海陆重工股份有限公司 | A kind of combustion engine waste heat boiler |
| CN109434313A (en) * | 2018-10-26 | 2019-03-08 | 中国电建集团山东电力建设第工程有限公司 | Tower boiler wall pipe construction method |
| CN114471001A (en) * | 2022-01-19 | 2022-05-13 | 大连理工大学 | Combined high-temperature ceramic filtering device and using method thereof |
| CN114471001B (en) * | 2022-01-19 | 2023-11-07 | 大连理工大学 | Combined high-temperature ceramic filtering device and application method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100929 Termination date: 20161228 |