CN104566336A - Screen type superheater group capable of preventing wobble and deformation - Google Patents
Screen type superheater group capable of preventing wobble and deformation Download PDFInfo
- Publication number
- CN104566336A CN104566336A CN201410792894.2A CN201410792894A CN104566336A CN 104566336 A CN104566336 A CN 104566336A CN 201410792894 A CN201410792894 A CN 201410792894A CN 104566336 A CN104566336 A CN 104566336A
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- screen type
- pendant superheater
- type superheater
- pipelines
- screen
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Abstract
The invention relates to a screen type superheater group capable of preventing wobble and deformation, in particular to a screen type superheater group capable of preventing wobble and deformation in a boiler hearth taking pulverized coal as fuel. The screen type superheater group comprises at least two screen type superheater units, wherein the screen type superheater units are constructed by bending a plurality of pipelines into a U shape and arranging the bent pipelines into a screen; the plurality of pipeline inlets of the screen type superheat units are connected with inlet container; the inlets of the plurality of pipelines of the screen type superheater units are connected with an inlet container; the outlets of the plurality of pipelines of the screen type superheat units are connected with an outlet container; the inlet container and the outlet container are connected integrally, and are positioned on the outer side of the upper part of the hearth. The screen type superheater group is characterized in that in adjacent screen type superheater units, the outlets of the plurality of pipelines of one screen type superheater unit are communicated with the inlets of the plurality of pipelines of the other screen type superheater unit. By adopting the screen type superheater group, screen type superheaters can be prevented from wobbling and deforming, the phenomena of pipe screen deformation and pipe explosion failures due to sticking of the pipelines in the pipe screen are overcome, and normal running of a boiler is ensured.
Description
Technical field
The present invention relates to a kind of boiler.Specifically, be the pendant superheater group with anti-rock and deformation performance in boiler furnace using coal dust as fuel.
Background technology
All know in boiler manfacturing industry, in the burner hearth of pulverized-coal fired boiler and CFBB, all arrange pendant superheater group, this pendant superheater group contains and is no less than two pendant superheater unit.At pulverized-coal fired boiler, for preventing rocking and being out of shape of pendant superheater tube panel, reinforcement measure is mainly adopted to be fixed on the madial wall of burner hearth the differing heights both sides of tube panel.Although adopt this measure to have certain effect, but because burner hearth combustion wind sends into from differing heights, make the flue gas pressures in burner hearth very unbalanced, still thoroughly cannot solve rocking and problem on deformation of tube panel, thus shorten the service life of tube panel.And the pendant superheater used in CFBB, its entrance header and outlet header lay respectively at above and below tube panel, wherein, the header of below is arranged on outside the water-cooling wall of the antetheca of burner hearth, and tube panel one end is connected with the header of below through after the water-cooling wall of antetheca.The header of top is arranged on the upper outside of burner hearth, is connected after the water-cooling wall of the tube panel other end through burner hearth with the header of top.In boiler running process, because the medium in water-cooling wall is different with the medium temperature in pendant superheater tube panel, make water-cooling wall different from the downward swell increment of pendant superheater tube panel, the pipeline in tube panel can be caused to be stuck, to make tube panel be out of shape the generation of even booster fault, thus have impact on the normal operation of boiler.
Summary of the invention
The problem to be solved in the present invention be to provide a kind of can the pendant superheater group of anti-rock and distortion.Adopt this pendant superheater group, rocking and being out of shape of pendant superheater can be prevented, avoid the pipeline in tube panel to be stuck, make tube panel be out of shape the generation of even booster fault, guarantee the normal operation of boiler.
The problems referred to above that the present invention will solve are realized by following technical scheme:
Of the present inventionly the pendant superheater group of anti-rock and distortion can comprise at least two pendant superheater unit, this pendant superheater unit is by rearranging into screen after many pipe bendings become U-shaped and forming.Many conduit entrances of pendant superheater unit are connected with import header, and many pipe outlets of pendant superheater unit are connected with outlet header, and described import header and outlet header are connected as a single entity and are in outside upper furnace.Be characterized in adjacent pendant superheater unit, many pipe outlets of a pendant superheater unit are all communicated with many conduit entrances of another pendant superheater unit respectively by tube connector.
Take such scheme, have the following advantages:
As can be seen from the above scheme, due in adjacent pendant superheater unit, many pipe outlets of a pendant superheater unit are all communicated with many conduit entrances of another pendant superheater unit respectively by tube connector, and described import header and outlet header are connected as a single entity and are in outside upper furnace, make multiple pendant superheater unit be linked to be an entirety, thus avoid and rock.And the downward swell increment of tube panel in burner hearth presents free state, do not cause any strength that tube panel is out of shape, the pipeline avoided in tube panel is stuck, make tube panel be out of shape the generation of even booster fault, ensure that the normal operation of boiler.
Accompanying drawing explanation
Fig. 1 be of the present invention can the pendant superheater group structural representation of anti-rock and distortion;
Fig. 2 is the A-A cross-sectional schematic of Fig. 1;
Fig. 3 is the B-B cross-sectional schematic of Fig. 1.
Detailed description of the invention
As shown in Figure 1 and Figure 2 with shown in Fig. 3, of the present inventionly the pendant superheater group of anti-rock and distortion at least two pendant superheater unit 1 can be comprised, the quantity of described pendant superheater unit 1, depending on volume, the watt level of boiler.
Described pendant superheater unit 1 is by rearranging into screen after eight pipelines 4 bend to U-shaped and forming.Eight pipeline 4 import departments of pendant superheater unit 1 are connected with import header 2, and eight pipeline 4 exits of pendant superheater unit 1 are connected with outlet header 5, and described import header 2 and outlet header 5 are connected as a single entity and are in outside upper furnace.For preventing rocking and be out of shape, in adjacent pendant superheater unit 1, eight pipelines 4 of a pendant superheater unit 1 export all by tube connector 3 respectively with eight pipeline 4 inlet communication of another pendant superheater unit 1, make multiple pendant superheater unit 1 be linked to be an entirety, thus avoid and rock.And the downward swell increment of tube panel in burner hearth presents free state, do not cause any strength that tube panel is out of shape, the pipeline avoided in tube panel is stuck, make tube panel be out of shape the generation of even booster fault, ensure that the normal operation of boiler.
The quantity of tube connector 3 is wherein equal with pipeline 4 quantity of pendant superheater unit 1, for simplicity, only depict between first pendant superheater unit 1 and second pendant superheater unit 1 of Fig. 2 between two pipelines, 4, second pendant superheater unit 1 and the 3rd pendant superheater unit 1 and only depict six pipelines 4.
Claims (1)
1. can the pendant superheater group of anti-rock and distortion, comprise at least two pendant superheater unit (1), this pendant superheater unit is by rearranging into screen after many pipe bendings become U-shaped and forming; Many conduit entrances of pendant superheater unit (1) are connected with import header (2), many pipe outlets of pendant superheater unit (1) are connected with outlet header (5), and described import header (2) and outlet header (5) are connected as a single entity and are in outside upper furnace; It is characterized in that, in adjacent pendant superheater unit (1), many pipe outlets of a pendant superheater unit (1) are all communicated with many conduit entrances of another pendant superheater unit (1) respectively by tube connector (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410792894.2A CN104566336A (en) | 2014-12-20 | 2014-12-20 | Screen type superheater group capable of preventing wobble and deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410792894.2A CN104566336A (en) | 2014-12-20 | 2014-12-20 | Screen type superheater group capable of preventing wobble and deformation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104566336A true CN104566336A (en) | 2015-04-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410792894.2A Pending CN104566336A (en) | 2014-12-20 | 2014-12-20 | Screen type superheater group capable of preventing wobble and deformation |
Country Status (1)
| Country | Link |
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| CN (1) | CN104566336A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276565A (en) * | 2015-11-26 | 2016-01-27 | 华西能源工业股份有限公司 | Superheater for waste incineration waste heat boiler and superheated steam heating method |
| CN112984492A (en) * | 2021-03-03 | 2021-06-18 | 华能（天津）煤气化发电有限公司 | Conveniently-overhauled small-sized tube panel device at tail part of waste heat boiler and installation method |
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| US3060909A (en) * | 1959-05-30 | 1962-10-30 | Sulzer Ag | Support means for tubes or groups of tubes heated by hot gas |
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| CN202149483U (en) * | 2011-06-09 | 2012-02-22 | 无锡华光锅炉股份有限公司 | Screen-type superheater outlet pipeline arrangement structure |
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2014
- 2014-12-20 CN CN201410792894.2A patent/CN104566336A/en active Pending
Patent Citations (7)
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| US3060909A (en) * | 1959-05-30 | 1962-10-30 | Sulzer Ag | Support means for tubes or groups of tubes heated by hot gas |
| CN201973706U (en) * | 2010-12-17 | 2011-09-14 | 四川川锅锅炉有限责任公司 | Boot type abrasion-resistant platen superheater |
| CN202149483U (en) * | 2011-06-09 | 2012-02-22 | 无锡华光锅炉股份有限公司 | Screen-type superheater outlet pipeline arrangement structure |
| CN202432508U (en) * | 2011-12-14 | 2012-09-12 | 上海汉鼎环保技术工程有限公司 | Connecting structure for superheaters at all stages in high-capacity four-corner tangentially coal-fired boiler |
| CN203010575U (en) * | 2012-11-23 | 2013-06-19 | 华西能源工业股份有限公司 | Circulating fluidized bed furnace platen superheater |
| CN103196129A (en) * | 2013-04-04 | 2013-07-10 | 深圳市广前电力有限公司 | Modularization vibration resisting method of gas turbine waste heat boiler |
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| 蔡斌等: "《670t/h锅炉后屏过热器固定穿屏管结构改造》", 《内蒙古电力技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276565A (en) * | 2015-11-26 | 2016-01-27 | 华西能源工业股份有限公司 | Superheater for waste incineration waste heat boiler and superheated steam heating method |
| CN105276565B (en) * | 2015-11-26 | 2018-09-28 | 华西能源工业股份有限公司 | Superheater and superheated steam heating means for refuse incineration exhaust-heating boiler |
| CN112984492A (en) * | 2021-03-03 | 2021-06-18 | 华能（天津）煤气化发电有限公司 | Conveniently-overhauled small-sized tube panel device at tail part of waste heat boiler and installation method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |