CN104930262A - Boiler hot primary air pipeline hanger arranging structure - Google Patents

Boiler hot primary air pipeline hanger arranging structure Download PDF

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Publication number
CN104930262A
CN104930262A CN201510347397.6A CN201510347397A CN104930262A CN 104930262 A CN104930262 A CN 104930262A CN 201510347397 A CN201510347397 A CN 201510347397A CN 104930262 A CN104930262 A CN 104930262A
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CN
China
Prior art keywords
pipeline
support portion
primary air
vertical section
suspension bracket
Prior art date
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.)
Granted
Application number
CN201510347397.6A
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Chinese (zh)
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CN104930262B (en
Inventor
范旭
杨劲
范永春
李伟科
潘灏
马雪松
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China Energy Engineering Group Guangdong Electric Power Design Institute Co Ltd
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China Energy Engineering Group Guangdong Electric Power Design Institute Co Ltd
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Priority to CN201510347397.6A priority Critical patent/CN104930262B/en
Publication of CN104930262A publication Critical patent/CN104930262A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L3/00Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F16L3/02Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets partly surrounding the pipes, cables or protective tubing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L3/00Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F16L3/16Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe
    • F16L3/20Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L3/00Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F16L3/16Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe
    • F16L3/20Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction
    • F16L3/205Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction having supporting springs

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Air Supply (AREA)

Abstract

The invention discloses a boiler hot primary air pipeline hanger arranging structure. The structure comprises a hot primary air pipeline and a supporting frame, wherein the hot primary air pipeline comprises an air pre-heater hot primary air connector, a pipeline elbow section, a pipeline vertical section and a pipeline outlet which are connected in sequence, the pipeline elbow section is provided with an elastic hander, a three-dimensional compensator and a combined hanger are arranged on the pipeline vertical section, and both the elastic hanger and the combined hanger are connected to the supporting frame. By the adoption of the structure, the blind flange stress at the position of the air pre-heater hot primary air connector can be eliminated, the stress at the position of the connector can be shared, and the risk that a compensator is damaged under pulling at the position of the connector can be avoided.

Description

Boiler hot First air pipeline elevator layout
Technical field
The present invention relates to thermal power generating technology field, particularly a kind of boiler hot First air pipeline elevator layout.
Background technique
In thermal power plant, heat primary air pipeline is to provide the pipeline of coal dust drying medium and combustion air, heat primary air pipeline uniform force, and piping safety has very important effect to safe operation of power plant.In conventional art, non-metal compensator is adopted to connect at air preheater outlet heat primary air pipe joint place, for compensating the displacement of air preheater interface, but compensator the blind flange force that can increase pipeline is set, suspension and support above compensator arranges and is difficult to eliminate the impact of blind flange force on compensator completely, occur that the compensator of jointing is drawn bad phenomenon, time serious, affect the safe operation of unit.
Summary of the invention
Based on this, for the problems referred to above, the present invention proposes a kind of boiler hot First air pipeline elevator layout, can eliminate the blind flange force at air preheater heat primary air pipe joint place, can share jointing stressed and solve compensator herein and drawn bad risk.
Its technological scheme is as follows:
A kind of boiler hot First air pipeline elevator layout, comprises heat primary air pipeline and supporting frame; Described heat primary air pipeline comprises the air preheater heat primary air interface, channel bend section, pipeline vertical section and the pipe outlet that connect setting successively; Described channel bend section is provided with flexible suspension, and described pipeline vertical section is provided with Three-D compensator and combination suspension bracket, and described flexible suspension and combination suspension bracket are all connected to support frame as described above.
Air preheater heat primary air jointing eliminates compensator, by circumference joint air preheater heat primary air interface transitions to circular heat First air pipe section, and the channel bend section of this heat primary air pipeline is provided with flexible suspension, pipeline vertical section also after channel bend section is provided with rigidity and spring assembly suspension bracket, between this combination suspension bracket, is provided with axis and radial displacement that Three-D compensator absorbs heat primary air pipeline.
When heat primary air pipeline is in cold conditions, the setting of Three-D compensator can not produce blind flange force, now combines bearing self weight of pipeline and combining making a concerted effort of suspension bracket of suspension bracket, when heat primary air pipeline is in hot, due to the setting of Three-D compensator, channel bend section place produces blind flange force upwards, now combine suspension bracket to can be used to balance this blind flange force, make piping stress balance, spring hanger also can share the deadweight of heat primary air pipeline in addition, combination suspension bracket lower support is on rigid beam, limit the displacement of upper pipe vertical section to expand downwards, and blind flange force absorbs by combining suspension bracket, whole piping uniform force is made by spring hanger and combination suspension bracket, and eliminate blind flange force effect, simultaneously without the need to arranging compensator at air preheater heat primary air jointing, channel bend section place also eliminates blind flange force upwards, thoroughly solve jointing compensator and drawn bad risk, improve the Security of heat primary air pipeline, thus improve the safety reliability of unit operation.
Below its further technological scheme is described:
Further, described pipeline exit is also provided with fixing frame, and described fixing frame is connected to support frame as described above.By being provided with fixing frame in the bottom of pipeline vertical section, can the expansion of restriction conduit and the direction of displacement of piping further.
Further, described channel bend section comprises the pipeline first elbow section and pipeline second elbow section that connect successively, and described pipeline first elbow section place is provided with the first flexible suspension, and described pipeline second elbow section place is provided with the second flexible suspension.Multiple flexible suspension is set according to channel bend section elbow structure feature correspondence, makes piping stressed more balanced.
Further, described first flexible suspension and the second flexible suspension include and are set to U-shaped and the suspension bracket base be sheathed on pipeline, and symmetry is connected to the spring hanger portion at described suspension bracket base two ends respectively, and described spring hanger portion is connected to support frame as described above.Arrange U-shaped suspension bracket base to be convenient to flexible suspension to be sheathed on pipeline, symmetrically arranged spring hanger portion makes stressed evenly support more reliable and more stable.
Further, described pipeline vertical section both sides are symmetrically arranged with a described combination suspension bracket respectively, and two described combination suspension brackets are located in outside described Three-D compensator.In like manner, two combination suspension brackets are symmetricly set in pipeline vertical section both sides, make pipeline stressed evenly support more stable.
Further, each described combination suspension bracket comprises the rigid support portion being arranged at described pipeline vertical section top, and one end, described rigid support portion is connected to described pipeline vertical section and the other end is connected to support frame as described above; Also comprise the elastic support portion being arranged at described pipeline vertical section bottom, two ends, described elastic support portion are all connected to described pipeline vertical section.When heat primary air pipeline is in cold conditions, making a concerted effort of self weight of pipeline and elastic support portion is born in the rigid support portion of combination suspension bracket, and now elastic support portion is in compressive state; When heat primary air pipeline is in hot, due to the setting of Three-D compensator, channel bend section place produces blind flange force upwards, and lost efficacy in the rigid support portion now combined in suspension bracket, elastic support portion is downwards stressed, balances this blind flange force, makes piping stress balance.
Further, all stagger and arrange in the described elastic support portion of each described combination suspension bracket and described rigid support portion, and two described springy support parts are not symmetricly set in outside described Three-D compensator.Staggered in elastic support portion and rigid support portion and arrange, the force bearing point both making on pipeline is in staggered distribution, and avoid the stressed excessive of pipeline one place, force balance effect is also better.
Further, mutually stagger 90 ° and arrange in described elastic support portion and described rigid support portion.Two-part of combination suspension bracket stagger 90 ° and arrange, and make pipeline and self stressedly reach the optimum state.
The present invention has following outstanding advantage: the form that have employed rigid hanger and spring hanger combination, without the need to arranging compensator at air preheater heat primary air jointing, eliminate blind flange force compensator being set and producing, make jointing stressed share and thoroughly can solve compensator herein drawn bad risk, improve unit operation Security.
Accompanying drawing explanation
Fig. 1 is the perspective view of the First air of boiler hot described in embodiment of the present invention pipeline elevator layout;
Fig. 2 is the force analysis schematic diagram of the First air of boiler hot described in embodiment of the present invention pipeline elevator layout when being in cold conditions state;
Fig. 3 is the force analysis schematic diagram of the First air of boiler hot described in embodiment of the present invention pipeline elevator layout when being in hot state.
Description of reference numerals:
100-heat primary air pipeline, 110-air preheater heat primary air interface, 120-pipeline first elbow section, 130-pipeline second elbow section, 140-pipeline vertical section, 150-pipe outlet, 200-first flexible suspension, 300-second flexible suspension, 400-combines suspension bracket, 410-rigid support portion, 420-rigid support portion, 500-Three-D compensator, 600-fixing frame.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail.
As shown in Figure 1, a kind of boiler hot First air pipeline elevator layout, comprises heat primary air pipeline 100 and supporting frame (not shown in the figures anticipate out).This heat primary air pipeline 100 comprises the air preheater heat primary air interface 110, channel bend section, pipeline vertical section 140 and the pipe outlet 150 that connect setting successively.This channel bend section is provided with flexible suspension, and this pipeline vertical section is provided with Three-D compensator 500 and combination suspension bracket 400, and this flexible suspension and combination suspension bracket 400 are all connected to supporting frame.
Air preheater heat primary air interface 110 place eliminates compensator, circular heat First air pipe section is transitioned into by circumference joint air preheater heat primary air interface 110, and flexible suspension is set in the channel bend section of this heat primary air pipeline 100, pipeline vertical section 140 also after channel bend section is provided with rigidity and spring assembly suspension bracket 400, between this combination suspension bracket 400, is provided with axis and radial displacement that Three-D compensator 500 absorbs heat primary air pipeline 100.And place is also provided with fixing frame 600 at pipe outlet 150, fixing frame 600 is connected to supporting frame.By being provided with fixing frame 600 in the bottom of pipeline vertical section 140, can the expansion of restriction conduit and the direction of displacement of piping further.
Further, above-mentioned channel bend section comprises the pipeline first elbow section 120 and pipeline second elbow section 130 that connect successively, and this pipeline first elbow section 120 place is provided with the first flexible suspension 200, this pipeline second elbow section 120 place is provided with the second flexible suspension 300.Multiple flexible suspension is set according to channel bend section elbow structure feature correspondence, makes piping stressed more balanced.And this first flexible suspension 200 and the second flexible suspension 300 include and be set to U-shaped and the suspension bracket base be sheathed on pipeline, and symmetry is connected to the spring hanger portion at suspension bracket base two ends respectively, and spring hanger portion is connected to supporting frame.Arrange U-shaped suspension bracket base to be convenient to flexible suspension to be sheathed on pipeline, symmetrically arranged spring hanger portion makes stressed evenly support more reliable and more stable.
In addition, above-mentioned pipeline vertical section 140 both sides are symmetrically arranged with an above-mentioned combination suspension bracket 400 respectively, and two combination suspension brackets 400 are located in outside Three-D compensator 500.In like manner, two combination suspension brackets 400 are symmetricly set in pipeline vertical section 140 both sides, make pipeline stressed evenly support more stable.And each combination suspension bracket 400 comprises the rigid support portion 410 being arranged at pipeline vertical section 140 top, one end, rigid support portion 410 is connected to pipeline vertical section 140 and the other end is connected to supporting frame.Each combination suspension bracket 400 also comprises the elastic support portion 420 being arranged at pipeline vertical section 140 bottom, and these two ends, elastic support portion 420 are all connected to pipeline vertical section 140.As shown in Figure 2, when heat primary air pipeline 100 is in cold conditions, making a concerted effort of self weight of pipeline and elastic support portion 420 is born in the rigid support portion 410 of combination suspension bracket 400, and now elastic support portion 420 is in compressive state; As shown in Figure 3, when heat primary air pipeline 100 is in hot, lost efficacy in the rigid support portion 410 in combination suspension bracket 400, elastic support portion 420 is downwards stressed, makes piping stress balance.In the present embodiment, described elastic support portion 420 all can be set to spring bracket portion, and described first flexible suspension 200 and the second flexible suspension 300 all can be set to spring hanger.
Further, all stagger and arrange in elastic support portion 420 and the rigid support portion 410 of each combination suspension bracket 400, and two elastic support portions 420 are symmetricly set in outside Three-D compensator 500 respectively.Staggered in elastic support portion 420 and rigid support portion 410 and arrange, the force bearing point both making on pipeline is in staggered distribution, and avoid the stressed excessive of pipeline one place, force balance effect is also better.In the present embodiment, mutually stagger 90 ° and arrange in elastic support portion 420 and rigid support portion 410.Two-part of combination suspension bracket 400 stagger 90 ° and arrange, and make pipeline and self stressedly reach the optimum state.
As shown in Figure 2, when heat primary air pipeline 100 installs unit off-duty (cold conditions), because heat primary air pipeline 100 is interior without media flow, the setting of Three-D compensator 500 can not produce blind flange force, now combine the rigid support portion 410 of suspension bracket 400 and bear making a concerted effort of self weight of pipeline and elastic support portion 420, now elastic support portion 420 is in compressive state, as shown in Figure 3, when unit operation (hot), due to the setting of Three-D compensator 500, pipeline second elbow section 130 place produces blind flange force upwards, now lost efficacy in the rigid support portion 410 combined in suspension bracket 400, elastic support portion 420 is downwards stressed, balance this blind flange force, make piping stress balance, other first flexible suspension 200 and the second flexible suspension 300 also share the deadweight of heat primary air pipeline 100, after Three-D compensator 500, the setting of fixing frame 600 makes pipeline thermal walking in the vertical direction upwards, and blind flange force absorbs by combining suspension bracket 400, fixing frame 600 is stressed can not be very large, whole piping uniform force is made by two flexible suspensions (first flexible suspension 200 and the second flexible suspension 300) and combination suspension bracket 400, and eliminate blind flange force effect, eliminate the compensator at air preheater heat primary air interface 110 place simultaneously, pipeline first elbow section 120 place also eliminates blind flange force upwards, thoroughly solve jointing compensator and drawn bad risk, improve the Security of heat primary air pipeline 100, thus improve the safety reliability of unit operation.
Boiler hot First air pipeline elevator layout provided by the invention, have employed the form of rigid hanger and spring hanger combination, without the need to arranging compensator at air preheater heat primary air interface 110 place, eliminate blind flange force compensator being set and producing, make jointing stressed share and thoroughly can solve compensator herein drawn bad risk, improve unit operation Security.
Each technical characteristics of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristics in above-described embodiment is not all described, but, as long as the combination of these technical characteristicss does not exist contradiction, be all considered to be the scope that this specification is recorded.
The above embodiment only have expressed several mode of execution of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Claims (8)

1. a boiler hot First air pipeline elevator layout, is characterized in that, comprises heat primary air pipeline and supporting frame;
Described heat primary air pipeline comprises the air preheater heat primary air interface, channel bend section, pipeline vertical section and the pipe outlet that connect setting successively;
Described channel bend section is provided with flexible suspension, and described pipeline vertical section is provided with Three-D compensator and combination suspension bracket, and described flexible suspension and combination suspension bracket are all connected to support frame as described above.
2. boiler hot First air pipeline elevator layout according to claim 1, it is characterized in that, described pipeline exit is also provided with fixing frame, and described fixing frame is connected to support frame as described above.
3. boiler hot First air pipeline elevator layout according to claim 1, it is characterized in that, described channel bend section comprises the pipeline first elbow section and pipeline second elbow section that connect successively, and described pipeline first elbow section place is provided with the first flexible suspension, described pipeline second elbow section place is provided with the second flexible suspension.
4. boiler hot First air pipeline elevator layout according to claim 3, it is characterized in that, described first flexible suspension and the second flexible suspension include and are set to U-shaped and the suspension bracket base be sheathed on pipeline, and symmetry is connected to the spring hanger portion at described suspension bracket base two ends respectively, described spring hanger portion is connected to support frame as described above.
5. boiler hot First air pipeline elevator layout according to claim 1, is characterized in that, described pipeline vertical section both sides are symmetrically arranged with a described combination suspension bracket respectively, and two described combination suspension brackets are located in outside described Three-D compensator.
6. boiler hot First air pipeline elevator layout according to claim 5, it is characterized in that, each described combination suspension bracket comprises the rigid support portion being arranged at described pipeline vertical section top, and one end, described rigid support portion is connected to described pipeline vertical section and the other end is connected to support frame as described above;
Also comprise the elastic support portion being arranged at described pipeline vertical section bottom, two ends, described elastic support portion are all connected to described pipeline vertical section.
7. boiler hot First air pipeline elevator layout according to claim 6, it is characterized in that, all stagger and arrange in the described elastic support portion of each described combination suspension bracket and described rigid support portion, and two described springy support parts are not symmetricly set in outside described Three-D compensator.
8. boiler hot First air pipeline elevator layout according to claim 7, is characterized in that, mutually staggers 90 ° and arrange in described elastic support portion and described rigid support portion.
CN201510347397.6A 2015-06-18 2015-06-18 Boiler hot First air pipeline elevator arrangement Active CN104930262B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107202464A (en) * 2017-05-04 2017-09-26 合肥华凌股份有限公司 Blast connection and wind cooling refrigerator

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11257541A (en) * 1998-03-06 1999-09-21 Ishikawajima Harima Heavy Ind Co Ltd Pipeline supporting device
CN2632198Y (en) * 2003-07-15 2004-08-11 深圳市卓宝科技股份有限公司 Rainwater hanging pipeline arrangement
CN201496670U (en) * 2009-08-03 2010-06-02 江苏慧通成套管道设备有限公司 U-shaped suspension bracket of suspension pipeline
CN204785069U (en) * 2015-06-18 2015-11-18 中国能源建设集团广东省电力设计研究院有限公司 Wind pipe string hanger arrangement structure of boiler heat

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11257541A (en) * 1998-03-06 1999-09-21 Ishikawajima Harima Heavy Ind Co Ltd Pipeline supporting device
CN2632198Y (en) * 2003-07-15 2004-08-11 深圳市卓宝科技股份有限公司 Rainwater hanging pipeline arrangement
CN201496670U (en) * 2009-08-03 2010-06-02 江苏慧通成套管道设备有限公司 U-shaped suspension bracket of suspension pipeline
CN204785069U (en) * 2015-06-18 2015-11-18 中国能源建设集团广东省电力设计研究院有限公司 Wind pipe string hanger arrangement structure of boiler heat

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107202464A (en) * 2017-05-04 2017-09-26 合肥华凌股份有限公司 Blast connection and wind cooling refrigerator
CN107202464B (en) * 2017-05-04 2019-09-27 合肥华凌股份有限公司 Blast connection and wind cooling refrigerator
US11402143B2 (en) 2017-05-04 2022-08-02 Hefei Hualing Co., Ltd. Blast pipe connector and air-cooled refrigerator

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