CN203364150U - Internal smoke baffle device for horizontal type waste heat boiler - Google Patents
Internal smoke baffle device for horizontal type waste heat boiler Download PDFInfo
- Publication number
- CN203364150U CN203364150U CN2013203126549U CN201320312654U CN203364150U CN 203364150 U CN203364150 U CN 203364150U CN 2013203126549 U CN2013203126549 U CN 2013203126549U CN 201320312654 U CN201320312654 U CN 201320312654U CN 203364150 U CN203364150 U CN 203364150U
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- Prior art keywords
- pipe
- flue
- waste heat
- heat boiler
- horizontal type
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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
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses an internal smoke baffle device for a horizontal type waste heat boiler so as to solve the problem that a smoke corridor is formed due to smoke short circuit of the horizontal waste heat boiler. The internal smoke baffle device for the horizontal type waste heat boiler comprises a plurality of rows of heating surface pipe bundles arranged in a flue. The two ends of the heating surface pipe bundles of each row are connected to a corresponding header. A plurality of inter-pipe baffles are arranged in the flue and extend in the direction parallel to the flue. The inter-pipe baffles are provided with a plurality of pipe holes. Each heating surface pipe bundle vertically penetrates through the corresponding pipe hole and is fixed with one inter-pipe baffle through one casing pipe. Side wing baffles are arranged between the heating surface pipe bundles and the flue. According to the internal smoke baffle device, smoke is evenly distributed in the flue, the heating surface pipe bundles are washed completely, the heat exchange efficiency of the boiler is improved, and the boiler can operate safely and stably.
Description
Technical field
The utility model relates to the Thermal Power Engineering applied technical field, is specially a kind of gas baffle device of horizontal type waste heat boiler internal constraint flow of flue gas.
Background technology
In horizontal type waste heat boiler body flue, owing between heated surface bundle upper and lower side and tube bank and flue inwall, space being arranged, therefore the gas baffle device need be set and prevent that the flue gas short circuit from forming " flue gas corridor ", realize that flue gas distributes uniformly and fully washing away heated surface bundle in flue, improve boiler heat exchange efficiency, guarantee boiler safety stable operation.
In actual motion, because gas baffle can't obtain managing the cooling of interior water at flue as heated surface bundle, the running temperature of gas baffle and maximum swelling amount are more much larger than the expansion of heated surface bundle.If the inside gas baffle device design of horizontal type waste heat boiler is unreasonable, the rear easy distortion of being heated is in operation, in the zone of the large swell increment of high temperature, deflection is large especially, to be unfavorable for retraining waste heat boiler the inside flow of flue gas, realize that flue gas, to fully the washing away of heated surface bundle, finally causes the decline of boiler heat exchange efficiency.
The utility model content
In order to prevent flue gas short circuit in horizontal type waste heat boiler body flue, affect heat exchange efficiency, the utility model aims to provide the inner gas baffle device of a kind of horizontal type waste heat boiler, this gas baffle device can prevent that the flue gas short circuit from forming " flue gas corridor " effectively, realize that flue gas distributes uniformly and fully washing away heated surface bundle in flue, improve boiler heat exchange efficiency, guarantee boiler safety stable operation.
To achieve these goals, the technical scheme that the utility model adopts is: the inner gas baffle device of a kind of horizontal type waste heat boiler comprises the many rows heated surface bundle be arranged in flue; The two ends of described heated surface bundle all are connected on corresponding header; Its design feature is, is provided with baffle plate between a plurality of pipes in described flue, and between each pipe, baffle plate is parallel to the bearing of trend of flue; Have a plurality of pores between described pipe on baffle plate, each heated surface bundle vertically through corresponding pore and by sleeve pipe fill and described pipe between baffle plate be fixedly linked; Be provided with the flank baffle plate between described heated surface bundle and flue inwall.
The bearing of trend that between described pipe, baffle plate is parallel to flue might not want absolute parallel in the bearing of trend of flue, can allow to depart from certain angle.
Be below the technical scheme of further improvement of the utility model:
In the utility model, the internal diameter of described sleeve pipe is preferably 1 ~ 2 times of heated surface bundle external diameter.
As concrete fixed form, between described sleeve pipe and heated surface bundle, between pipe, between baffle plate and sleeve pipe, for welding or bolt, be connected.
For further constraint flue gas distributes uniformly and, to fully the washing away of heated surface bundle, the outer rim of described flank baffle plate is pressed close to described flue inwall in flue.
According to embodiment of the present utility model, between adjacent two blocks of pipes, between baffle plate, overlap and be connected or be connected by brace.
In order to strengthen the scouring effect of flue gas to heated surface bundle, on every heated surface bundle with fin.
By said structure, the utility model comprises and being arranged between pipe and the baffle plate at two flank places, wherein the gas baffle between pipe is well plate format, between pipe, baffle plate and flank baffle plate are fixed on heated surface bundle by sleeve pipe, between adjacent pipe, between baffle plate, by overlap joint or brace, be connected, the outer rim of flank baffle plate is pressed close to the flue inwall.After adopting said structure of the present utility model, gas baffle is fixed on heated surface bundle by sleeve pipe, do not need direct welding between adjacent pipe between baffle plate, can be because thermal expansion amount produces large stress, Stability Analysis of Structures, compactness, can fully retrain flue gas flowing in flue, guarantee the heat convection effect.
Know-why of the present utility model is: the finned tube in horizontal type waste heat boiler is important heat transfer element, and with respect to light pipe, the heat transfer area of the finned tube of same length can improve 4 ~ 9 times, and heat transfer coefficient can improve more than 2.5 times.In the situation that absorb identical heat, adopt finned tube can make the waste heat boiler volume reduce 1/2, weight reduces 1/3, and structure is compacter.Due to the specific (special) requirements of processing technology and the tube welding technique of finned tube, one section light pipe must be left as transition in finned tube and header junction, and the flue gas resistance of this section light pipe only has 1/3 left and right of fin part.The flow behavior of flue gas has determined that it can be concentrated and has flowed to the zone that resistance is little (i.e. the light pipe part of tube bank and both sides gap location), and avoid the main heat transfer zone (being the finned tube part) that resistance is larger, form in " flue gas corridor ", this will have a strong impact on the heat exchange efficiency of boiler.
Compared with prior art, the beneficial effects of the utility model are: the utility model has retrained the flow of flue gas of horizontal type waste heat boiler inside, prevents that the flue gas short circuit from forming " flue gas corridor ".It is realized that flue gas distributes uniformly in flue and, to fully the washing away of heated surface bundle, has improved boiler heat exchange efficiency, has guaranteed boiler safety stable operation.
Below in conjunction with drawings and Examples, the utility model is further elaborated.
The accompanying drawing explanation
Fig. 1 is the structure principle chart of an embodiment of the utility model;
Fig. 2 is the A place partial enlarged drawing of Fig. 1;
Fig. 3 is the baffle plate top view connected by brace between adjacent two pipes;
Fig. 4 has indicated the position figure of embodiment of the utility model in certain type horizontal type waste heat boiler.
In the drawings
Baffle plate between the 1-pipe; 2-flank baffle plate; The 3-sleeve pipe; The 4-heated surface bundle;
The 5-brace; 6-flue inwall; The 7-header; The 8-fin.
The specific embodiment
A kind of inside gas baffle device of horizontal type waste heat boiler, as shown in Figure 1, it comprises baffle plate 1 between the pipe of lateral arrangement, flank baffle plate 2, sleeve pipe 3, the vertical heated surface bundle 4 of arranging, on every heated surface bundle 4, fin is housed, between adjacent pipe, between baffle plate 1, by brace 5, be connected, the outer rim of flank baffle plate 2 is pressed close to flue inwall 6, and the two ends of heated surface bundle 4 are connected with header 7.The flow of flue gas of horizontal type waste heat boiler inside is managed a baffle plate 1 and 2 constraints of flank baffle plate, transversal flow heated surface bundle.Gas baffle does not directly weld with heating surface tube 4 bundles, directly welding between adjacent screen, thus avoided because thermal expansion amount produces large stress and distortion.
The content that above-described embodiment is illustrated should be understood to these embodiment only for being illustrated more clearly in the utility model, and be not used in the restriction scope of the present utility model, after having read the utility model, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present utility model.
Claims (6)
1. the inner gas baffle device of horizontal type waste heat boiler, comprise the many rows heated surface bundle (4) be arranged in flue; The two ends of described heated surface bundle (4) all are connected on corresponding header (7); It is characterized in that, be provided with baffle plate between a plurality of pipes (1) in described flue, and between each pipe, baffle plate (1) is parallel to the bearing of trend of flue; Baffle plate between described pipe has a plurality of pores on (1), and each heated surface bundle (4) vertically also is fixedly linked by baffle plate (1) between sleeve pipe (3) and described pipe through corresponding pore; Be provided with flank baffle plate (2) between described heated surface bundle (4) and flue inwall (6).
2. the inner gas baffle device of horizontal type waste heat boiler according to claim 1, is characterized in that, the internal diameter of described sleeve pipe (3) is 1 ~ 2 times of heated surface bundle (4) external diameter.
3. the inner gas baffle device of horizontal type waste heat boiler according to claim 1, is characterized in that, between described sleeve pipe (3) and heated surface bundle (4), between pipe, between baffle plate (1) and sleeve pipe (3), is to weld or bolt is connected.
4. the inner gas baffle device of horizontal type waste heat boiler according to claim 1, is characterized in that, the outer rim of described flank baffle plate (2) is pressed close to described flue inwall (6).
5. according to the inner gas baffle device of the described horizontal type waste heat boiler of one of claim 1 ~ 4, it is characterized in that, between adjacent two blocks of pipes, overlap between baffle plate (1) and be connected or be connected by brace (5).
6. according to the inner gas baffle device of the described horizontal type waste heat boiler of one of claim 1 ~ 4, it is characterized in that, every heated surface bundle (4) is upper with fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203126549U CN203364150U (en) | 2013-06-03 | 2013-06-03 | Internal smoke baffle device for horizontal type waste heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203126549U CN203364150U (en) | 2013-06-03 | 2013-06-03 | Internal smoke baffle device for horizontal type waste heat boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203364150U true CN203364150U (en) | 2013-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203126549U Expired - Fee Related CN203364150U (en) | 2013-06-03 | 2013-06-03 | Internal smoke baffle device for horizontal type waste heat boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203364150U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307619A (en) * | 2013-06-03 | 2013-09-18 | 长沙锅炉厂有限责任公司 | Flue gas baffle device inside horizontal waste heat boiler |
| CN104121587A (en) * | 2014-08-06 | 2014-10-29 | 无锡华光锅炉股份有限公司 | Smoke baffle structure of garbage incineration furnace |
-
2013
- 2013-06-03 CN CN2013203126549U patent/CN203364150U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307619A (en) * | 2013-06-03 | 2013-09-18 | 长沙锅炉厂有限责任公司 | Flue gas baffle device inside horizontal waste heat boiler |
| CN103307619B (en) * | 2013-06-03 | 2016-01-20 | 长沙锅炉厂有限责任公司 | Horizontal type waste heat boiler inside smoke retaining device |
| CN104121587A (en) * | 2014-08-06 | 2014-10-29 | 无锡华光锅炉股份有限公司 | Smoke baffle structure of garbage incineration furnace |
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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: 20131225 Termination date: 20210603 |