CN204006088U - A kind of fanning strip sealing device of rotary regenerative air preheater - Google Patents
A kind of fanning strip sealing device of rotary regenerative air preheater Download PDFInfo
- Publication number
- CN204006088U CN204006088U CN201420330191.3U CN201420330191U CN204006088U CN 204006088 U CN204006088 U CN 204006088U CN 201420330191 U CN201420330191 U CN 201420330191U CN 204006088 U CN204006088 U CN 204006088U
- Authority
- CN
- China
- Prior art keywords
- sealing device
- fanning strip
- air preheater
- rotary regenerative
- regenerative air
- 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.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model provides a kind of fanning strip sealing device of rotary regenerative air preheater, described sealing device is arranged between the upper and lower of fanning strip of described rotary regenerative air preheater, described sealing device comprises: the first seal member that connects described fanning strip upper and lower, it is characterized in that, described sealing device also comprises: be arranged on the second seal member between described fanning strip upper and lower.By two seal members, can play better sealing effectiveness.
Description
Technical field
The utility model relates to thermal power generating technology field, relates in particular to a kind of fanning strip sealing device of rotary regenerative air preheater.
Background technology
At firepower, send out in factory, air preheater is a kind of common equipment, and its effect is to utilize the heat of flue gas to carry out the heat-exchange apparatus of heating boiler burning required air.Air preheater has reclaimed the heat of flue gas, has reduced exhaust gas temperature, and air is preheated, and the initial temperature of fuel and air is improved, and has strengthened catching fire and combustion process of fuel, has reduced non-complete combustion of fuel loss, has improved boiler efficiency; Therefore air preheater has become an important component part of modern boiler.And rotary regenerative air preheater is compared with tubular air preheater, convenient by feat of compact conformation, flexible arrangement, floor space is little, be widely used.
Figure 1 shows that a kind of common air preheater in prior art, this air preheater comprises: cylindrical rotor 100, can be around its axle center 101 rotations, fill chlamydate framework 102, rotor is radially divided into mutually different several fan-shaped cabins 104 with dividing plate 103, and heat accumulation plate (also claiming heat transfer element) is housed in fan-shaped cabin 104.Flue gas or air circulate up and down by the gap of heat transfer element.In order to realize the heat exchange between flue gas and air, circulating area is divided into flue gas Circulation Area, circulation of air district and seal area three parts, cutting apart of region is exactly top 105 and the bottom 106 that relies on rotor case, upper and lower two corresponding fanning strips form, and it and apex seal have formed radial seal pair.
But the development along with large capacity, high parameter fired power generating unit, the automaticity of boiler preheater improves constantly, fanning strip is modified into can automatic lifting, the fanning strip of automatic lifting comprises upper and lower two parts, top structure is an integral body, fanning strip top and girder steel weld together, and bottom is drawn by hoisting mechanism.Between two parts, be reserved with bottom fanning strip and promote gap, by a straight panel element type sealing plate, sealed.
Utility model content
Inventor is in the prior art in the air preheater of automatic lifting fanning strip, the problem of existence: in hot running, due to expanded by heating, seal clearance increases, and the inner fouling phenomenon of fanning strip is serious.
In order to solve the bad technical problem of fanning strip sealing device sealing effectiveness of rotary regenerative air preheater in prior art, the utility model provides a kind of energy the fine fanning strip sealing device that plays the rotary regenerative air preheater of sealing function.
Described in the fanning strip sealing device of a kind of rotary regenerative air preheater that the utility model provides, sealing device is arranged between the upper and lower of fanning strip of described rotary regenerative air preheater, described sealing device comprises: the first seal member that connects described fanning strip upper and lower, it is characterized in that, described sealing device also comprises: be arranged on the second seal member between described fanning strip upper and lower.
Further, described the first seal member is waveform element, and described the second seal member is straight panel element.
Further, described waveform element is monophasic waveform element.
Further, described waveform element is many waveforms element.
Further, described waveform element is the telescopic sealing plate that a plurality of different straight plates become predetermined angular to form.
Further, described waveform element is S shape sealing plate.
Further, described sealing device also comprises the protective plate that is arranged on described the first potted component and the second potted component outside.
Adopt technique scheme, because sealing device comprises two potted components, so can effectively improve the sealing effectiveness of fanning strip; And first potted component be that waveform element, the second potted component are craspedodrome plate, two kinds of different potted component effects can be carried out to combination like this, make sealing effectiveness better.
Accompanying drawing explanation
Fig. 1 is rotary regenerative air preheater structural representation in prior art;
Fig. 2 is the structural representation of the sealing device that relates to of the utility model embodiment mono-;
Fig. 3 is that the sealing device that relates to of the utility model embodiment mono-is at the structural representation at another visual angle;
Fig. 4 is the structural representation of the sealing device that relates to of the utility model embodiment bis-;
Fig. 5 is the structural representation of the sealing device that relates to of the utility model embodiment tri-.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in detail, it should be noted that, these specific descriptions just allow those of ordinary skills be more prone to, clearly understand the utility model, but not to limited explanation of the present utility model.
Embodiment mono-
As shown in Figure 2, described in the fanning strip sealing device of a kind of rotary regenerative air preheater that embodiment mono-provides, sealing device is arranged between the top 3 and bottom 4 of fanning strip of described rotary regenerative air preheater, the top 3 of fanning strip is connected with the rotor center 1 of air preheater with bottom, sealing device comprises: connect the first seal member of described fanning strip upper and lower, and be arranged on the second seal member between described fanning strip upper and lower.Preferably, the first seal member is waveform element 5, and described the second seal member is straight panel element 6.Can avoid like this air leak rate of air curtain after waveform component abrasion, also can avoid straight panel element may occur the hidden danger of left and right displacement.
As shown in Figure 2 and Figure 3, preferably, described waveform element is many waveforms element 5, and these a plurality of waveform elements are the telescopic sealing plate that a plurality of different straight panel elements become predetermined angular to form.More than 5 bending segment of waveform element 51,52,53 is formed by connecting particularly, be more conducive to like this flexible of waveform element 5, ought be connected to like this automatic lifting bar 2 on fanning strip top 3, in mobile fanning strip top 3, waveform element 5 can stretch better, so sealing effectiveness is better.
As shown in Figure 3, preferably, sealing device also comprises the protective plate 7,8 that is arranged on described the first potted component and the second potted component outside.Certainly the quantity of protective plate can be unrestricted.Can allow like this sealing device can be more durable, not fragile.
After adopting technique scheme, preheater air leak rate of air curtain can decline 0.1～1%.
Embodiment bis-
As shown in Figure 4, different from embodiment mono-, the first potted component that embodiment bis-provides is that monophasic waveform element 5 is just formed by connecting by two straight plates, is more convenient for like this producing and installing.
Embodiment tri-
As shown in Figure 5, different from embodiment mono-, two, the first potted component 5 that embodiment tri-provides is S shape sealing plate, the same like this effect that can play in embodiment mono-.
Finally it should be noted that, above-mentioned explanation is only most preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction.Any those of ordinary skill in the art; do not departing within the scope of technical solutions of the utility model; all can utilize way and the technology contents of above-mentioned announcement to make many possible changes and simple replacement etc. to technical solutions of the utility model, these all belong to the scope of technical solutions of the utility model protection.
Claims (7)
1. the fanning strip sealing device of a rotary regenerative air preheater, described sealing device is arranged between the upper and lower of fanning strip of described rotary regenerative air preheater, described sealing device comprises: the first seal member that connects described fanning strip upper and lower, it is characterized in that, described sealing device also comprises: be arranged on the second seal member between described fanning strip upper and lower.
2. the fanning strip sealing device of rotary regenerative air preheater as claimed in claim 1, is characterized in that, described the first seal member is waveform element, and described the second seal member is straight panel element.
3. the fanning strip sealing device of rotary regenerative air preheater as claimed in claim 2, is characterized in that, described waveform element is monophasic waveform element.
4. the fanning strip sealing device of rotary regenerative air preheater as claimed in claim 2, is characterized in that, described waveform element is many waveforms element.
5. the fanning strip sealing device of rotary regenerative air preheater as claimed in claim 2, is characterized in that, described waveform element is the telescopic sealing plate that a plurality of different straight plates form at a predetermined angle.
6. the fanning strip sealing device of rotary regenerative air preheater as claimed in claim 2, is characterized in that, described waveform element is S shape sealing plate.
7. the fanning strip sealing device of the rotary regenerative air preheater as described in as arbitrary in claim 1～6, is characterized in that, described sealing device also comprises the protective plate that is arranged on described the first potted component and the second potted component outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420330191.3U CN204006088U (en) | 2014-06-19 | 2014-06-19 | A kind of fanning strip sealing device of rotary regenerative air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420330191.3U CN204006088U (en) | 2014-06-19 | 2014-06-19 | A kind of fanning strip sealing device of rotary regenerative air preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204006088U true CN204006088U (en) | 2014-12-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420330191.3U Expired - Fee Related CN204006088U (en) | 2014-06-19 | 2014-06-19 | A kind of fanning strip sealing device of rotary regenerative air preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204006088U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020738A (en) * | 2015-08-20 | 2015-11-04 | 周一方 | Air preheater for thermal power plant |
| CN113757706A (en) * | 2021-09-28 | 2021-12-07 | 华能(福建)能源开发有限公司福州分公司 | Dust-removing structure for fan-shaped plate of air preheater |
-
2014
- 2014-06-19 CN CN201420330191.3U patent/CN204006088U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020738A (en) * | 2015-08-20 | 2015-11-04 | 周一方 | Air preheater for thermal power plant |
| CN113757706A (en) * | 2021-09-28 | 2021-12-07 | 华能(福建)能源开发有限公司福州分公司 | Dust-removing structure for fan-shaped plate of air preheater |
| CN113757706B (en) * | 2021-09-28 | 2023-12-05 | 华能(福建)能源开发有限公司福州分公司 | Air heater sector plate ash dredging structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20141210 Termination date: 20190619 |