CN104948869A - Nonmetallic expansion joint used for flue gas duct of boiler - Google Patents
Nonmetallic expansion joint used for flue gas duct of boiler Download PDFInfo
- Publication number
- CN104948869A CN104948869A CN201410118332.XA CN201410118332A CN104948869A CN 104948869 A CN104948869 A CN 104948869A CN 201410118332 A CN201410118332 A CN 201410118332A CN 104948869 A CN104948869 A CN 104948869A
- Authority
- CN
- China
- Prior art keywords
- expansion joint
- covering
- baffle plate
- boiler
- hollow structure
- 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.)
- Withdrawn
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Classifications
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/04—Arrangements using dry fillers, e.g. using slag wool which is added to the object to be insulated by pouring, spreading, spraying or the like
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
Abstract
A nonmetallic expansion joint used for a flue gas duct of a boiler comprises a covering, heat-insulating filler, pressing plates, a stand and baffles; the covering is connected with the stand and the baffles through the pressing plates to form a hollow structure, and the hollow structure is filled with the heat-insulting filler; one end of each baffle is welded to a connecting pipe, the other end of each baffle is the free end, and the width of a gap formed between each baffle and the corresponding connecting pipe is eight millimeters; the covering is made of stainless steel wire reinforced ceramic fiber cloth; the heat-insulating filler is an aluminium silicate heat-insulating material.
Description
Technical field
The present invention relates to a kind of non-metal expansion joint, particularly relate to a kind of non-metal expansion joint being applied to boiler smoke duct.
Background technique
At present, in many thermal power plants, the boiler smoke duct system type metal expansion joint of fired power generating unit breaks and the flue dust that causes thus leaks and enjoys puzzlement always.These both affected boiler thermal output, polluted plant environment again.Trace it to its cause, except the problem of manufacturing qualities of equipment itself, the three-dimensional expansion mainly produced during cigarette ducting system conduit running, the reasons such as the vibration produced when being in corrosive environment and boiler operatiopn with boiler back end ductwork, easily breakage and flue dust leak to cause the type metal expansion joint on cigarette ducting system pipeline.Stop the generation of these problems, efficiently and effectively method be use flexible, without installing, counter-force, absorbing, absorption three direction displacement amount are large, corrosion-resistant, the non-metal expansion joint of abrasionproof.
Summary of the invention
For above problem the invention provides a kind of be applied to boiler smoke duct flexible, without installing, counter-force, absorbing, absorption three direction displacement amount are large, corrosion-resistant, the non-metal expansion joint of abrasionproof.
The invention provides a kind of non-metal expansion joint for boiler smoke duct to overcome the above problems, comprising covering, thermal insulating filling, pressing plate, frame and baffle plate; Described covering and frame, baffle plate are connected to form hollow structure by pressing plate, and thermal insulating filling is packed in hollow structure; One end of described baffle plate is welded in adapter, and one end is free end in addition, and the gap of baffle plate and adapter is 8mm;
Described covering is that Stainless Steel Wire strengthens ceramic fiber cloth;
Described thermal insulating filling is alumina silicate thermal-protective material.
Useful effect:
(1) easy for installation, simple.The installation of non-metal expansion joint is without the need to redesigning piping support and hanger.Without the need to high request centering, without the need to crane gear.During replacing, needed time is short, and the pipeline that after adapting to pipeline long-term work, foundation settlement causes simultaneously is permanent to be misaligned.
(2) can axial, the transverse direction of extraction duct and angular displacement, under suitable axial length, the lateral displacement that its absorbs is much larger than type metal expansion joint.It is to pipeline without reaction thrust, and non-metal expansion joint is flexible, there is not pre-stretching or precompression during installation.
(3) corrosion protection, fills up alumina silicate thermal-protective material in the cavity between the baffle plate of non-metal expansion joint and covering.Both can stop medium heat unofficial biography in pipe, and can prevent again dust from gathering at this, the condition that corrosion produces is inadequate; In addition, nonmetallic material used itself are corrosion resistant.
(4) absorbing, non-metallic body is soft, and it does not transmit the vibration of piping.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further details.
As shown in Figure 1, a kind of non-metal expansion joint for boiler smoke duct, comprises covering 1, thermal insulating filling 2, pressing plate 3, frame 4 and baffle plate 5; Described covering 1 is connected to form hollow structure with frame 4, baffle plate 5 by pressing plate 3, and thermal insulating filling 2 is packed in hollow structure; One end of described baffle plate 5 is welded in adapter, and one end is free end in addition, and the gap of baffle plate and adapter is 8mm;
Described covering 1 is Stainless Steel Wire enhancing ceramic fiber cloth;
Described thermal insulating filling 2 is alumina silicate thermal-protective material.
The foregoing is only the preferred embodiments of the present invention, be not restricted to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within right of the present invention.
Claims (1)
1. for a non-metal expansion joint for boiler smoke duct, it is characterized in that: comprise covering (1), thermal insulating filling (2), pressing plate (3), frame (4) and baffle plate (5); Described covering (1) and frame (4), baffle plate (5) are connected to form hollow structure by pressing plate (3), and thermal insulating filling (2) is packed in hollow structure; One end of described baffle plate (5) is welded in adapter, and one end is free end in addition, and the gap of baffle plate and adapter is 8mm;
Described covering (1) is Stainless Steel Wire enhancing ceramic fiber cloth;
Described thermal insulating filling (2) is alumina silicate thermal-protective material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410118332.XA CN104948869A (en) | 2014-03-27 | 2014-03-27 | Nonmetallic expansion joint used for flue gas duct of boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410118332.XA CN104948869A (en) | 2014-03-27 | 2014-03-27 | Nonmetallic expansion joint used for flue gas duct of boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104948869A true CN104948869A (en) | 2015-09-30 |
Family
ID=54163772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410118332.XA Withdrawn CN104948869A (en) | 2014-03-27 | 2014-03-27 | Nonmetallic expansion joint used for flue gas duct of boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104948869A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017157031A1 (en) * | 2016-03-14 | 2017-09-21 | 江苏奎泽机械工业有限公司 | Non-metallic expansion joint |
| CN108591661A (en) * | 2018-05-28 | 2018-09-28 | 朱家浩 | A kind of boiler of power plant smoke conveying duct non-metal compensator |
| CN112113055A (en) * | 2020-10-15 | 2020-12-22 | 诸暨市沣泽动力机械有限公司 | Novel nonmetal expansion joint of feed back ware furnace |
| CN113187981A (en) * | 2021-05-14 | 2021-07-30 | 无锡华光环保能源集团股份有限公司 | Nonmetal expansion joint structure for connecting combustion engine and waste heat boiler |
| CN114196426A (en) * | 2021-11-22 | 2022-03-18 | 殷梅芳 | Flue gas heating pipeline in dry distillation kiln |
-
2014
- 2014-03-27 CN CN201410118332.XA patent/CN104948869A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017157031A1 (en) * | 2016-03-14 | 2017-09-21 | 江苏奎泽机械工业有限公司 | Non-metallic expansion joint |
| CN108591661A (en) * | 2018-05-28 | 2018-09-28 | 朱家浩 | A kind of boiler of power plant smoke conveying duct non-metal compensator |
| CN108591661B (en) * | 2018-05-28 | 2020-10-16 | 永康市简零贸易有限公司 | Nonmetal compensator for power plant boiler flue gas conveying pipeline |
| CN112113055A (en) * | 2020-10-15 | 2020-12-22 | 诸暨市沣泽动力机械有限公司 | Novel nonmetal expansion joint of feed back ware furnace |
| CN112113055B (en) * | 2020-10-15 | 2023-08-29 | 诸暨市沣泽动力机械有限公司 | Novel nonmetallic expansion joint of feeder return hearth |
| CN113187981A (en) * | 2021-05-14 | 2021-07-30 | 无锡华光环保能源集团股份有限公司 | Nonmetal expansion joint structure for connecting combustion engine and waste heat boiler |
| CN114196426A (en) * | 2021-11-22 | 2022-03-18 | 殷梅芳 | Flue gas heating pipeline in dry distillation kiln |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20150930 |