CN203703938U - Coal economizer - Google Patents
Coal economizer Download PDFInfo
- Publication number
- CN203703938U CN203703938U CN201320766966.7U CN201320766966U CN203703938U CN 203703938 U CN203703938 U CN 203703938U CN 201320766966 U CN201320766966 U CN 201320766966U CN 203703938 U CN203703938 U CN 203703938U
- Authority
- CN
- China
- Prior art keywords
- pipe
- economizer
- header
- long
- little
- 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 - Lifetime
Links
- 239000003245 coal Substances 0.000 title abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 210000002445 nipple Anatomy 0.000 claims description 7
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- 239000010865 sewage Substances 0.000 abstract 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 3
- 241000270295 Serpentes Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008521 reorganization Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a coal economizer. The coal economizer comprises a plurality of U-shaped pipe assemblies which are distributed in parallel. Each U-shaped pipe assembly comprises a long collection box, two small collection boxes arranged in parallel, and a plurality of U-shaped pipes, wherein two ends of each small collection box are closed; two ends of each U-shaped pipe are respectively communicated with the two small collection boxes; a sewage discharging pipe and a recirculation pipe are arranged on the long collection box; a water inlet pipe and a water outlet pipe are respectively arranged at two ends of the long collection box; the long collection box is communicated with the small collection boxes through short pipe joints. According to the coal economizer with the structure, the modular design is adopted; when a certain part leaks, only the corresponding U-shaped pipe assembly needs to be closed for maintenance, and the whole coal economizer does not need to be closed, so that the heat loss is reduced, and the working efficiency is improved.
Description
Technical field
The utility model relates to a kind of economizer for CFBB.
Background technology
The required boiler of coal fired power generation, industry or heating for residential area is for the energy-conservation economizer parts that all used, in order to reduce flue-gas temperature, absorb heat energy heated feed water or change into steam.The header that existing economizer is generally arranged by snake bend and snake bend two ends forms.If the economizer of this structure has place's seepage by this economizer shutoff, to cause a large amount of heat-energy losses, reduce operating efficiency.
Utility model content
For the technical problem of above-mentioned existence, the utility model provides a kind of economizer, and this economizer adopts modularized design, when there is seepage in somewhere, only needs one group of " U " shape pipe assembly of shutoff just can complete maintenance.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of economizer, comprises " U " shape pipe assembly of some groups of parallel arrangements; Every group of U-shaped pipe assembly comprises a long header, two little headers that be arranged in parallel and some " U " shape pipe; Described little header closed at both ends, the two ends of " U " shape pipe communicate with two little headers respectively; In long header, be provided with blow-off pipe and recirculation pipe, its two ends are respectively arranged with water inlet pipe and outlet pipe; Long header utilizes source nipple to communicate with little header.
Improve as one, on described " U " shape pipe, be welded with helical fin.Increase heating surface area, improve heat exchanger effectiveness.The helical fin of welding is managed the above twin fin of processing " U " shape relatively with directly, and workload is less.
Further improve as above-mentioned improvement, described " U " shape pipe only straight part is welded with helical fin on.If be also welded with helical fin in pipe bent position, will certainly increase the radius of bend pipe, increase the volume of whole economizer simultaneously.
Preferred as one, described " U " shape pipe two ends mouth of pipe line of centres and little header are acute angle." U " shape pipe tilting is arranged into stagger arrangement mode, can carry the heat exchanger effectiveness with flue gas.
Improve as one, in described long header, be provided with some dividing plates.It can replace numerous elbows, and forced water supply flows from bottom to top in pipe group.
Improve as one, economizer surrounding is provided with outer casing.Prevent that helical fin and " U " shape pipe are impaired.
Improve as one, described source nipple side is provided with the gas baffle perpendicular to long header.Prevent that flue gas short circuit from forming corridor.
Usefulness of the present utility model is: have the economizer of said structure, adopt modular design, in the time that seepage occurs in somewhere, only need sealing reorganization " U " shape pipe assembly to overhaul, without whole economizer cuts out, reduce the loss of heat, improve operating efficiency.
Brief description of the drawings
Fig. 1 is " U " shape pipe front view.
Fig. 2 is " U " shape pipe assembly left view.
Fig. 3 is the utility model structural representation.
Mark in figure: 1 " U " shape pipe, 2 helical fins, 3 little headers, 4 long headers, 5 dividing plates, 6 source nipples, 7 support members, 8 water inlet pipes, 9 outlet pipes, 10 blow-off pipes, 11 recirculation pipes, 12 outer casings, 13 girder steels, 14 gas baffles.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1 to Figure 3:
The utility model comprises some groups of parallel arrangements " U " shape pipe assembly; Every group of " U " shape pipe assembly comprises a long header 4, two the little headers 3 that be arranged in parallel and some " U " shape pipes 1; Described little header 3 closed at both ends, the two ends of " U " shape pipe 1 communicate with two little headers 3 respectively; In long header 4, be provided with blow-off pipe 10 and recirculation pipe 11, its two ends are respectively arranged with water inlet pipe 8 and outlet pipe 9; Long header 4 utilizes source nipple 6 to communicate with little header 3.Between " U " shape pipe assembly, rely on support member 7 and girder steel 13 fixed supports.
On " U " shape pipe 1, can be welded with helical fin 2, but preferably only straight part be welded with helical fin 2 on." U " shape is managed the 1 two ends mouth of pipe line of centres and little header 3 is acute angle, neighbouring " U " shape is managed 3 interlaced, improves heat exchanger effectiveness.
Can also header 4 be interior that some dividing plates 5 are set long, and in economizer surrounding, outer casing 12 is set.In order to prevent that flue gas short circuit from forming corridor, can be provided with the gas baffle 14 perpendicular to long header 4 at source nipple 6 sides.
When work, flue gas, from top to bottom by economizer, carries out heat exchange with the medium in " U " shape pipe 1.When aqueous vapor seepage occurs somewhere, only need to the shutoff of breakthrough is residing " U " shape pipe assembly overhaul, and without by all shutoff of whole economizer, avoid boiler to produce larger heat loss.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. an economizer, is characterized in that: " U " shape pipe assembly that comprises some groups of parallel arrangements; Every group of U-shaped pipe assembly comprises a long header, two little headers that be arranged in parallel and some " U " shape pipe; Described little header closed at both ends, the two ends of " U " shape pipe communicate with two little headers respectively; In long header, be provided with blow-off pipe and recirculation pipe, its two ends are respectively arranged with water inlet pipe and outlet pipe; Long header utilizes source nipple to communicate with little header.
2. a kind of economizer according to claim 1, is characterized in that: on described " U " shape pipe, be welded with helical fin.
3. a kind of economizer according to claim 2, is characterized in that: described " U " shape pipe only straight part is welded with helical fin on.
4. a kind of economizer according to claim 1, is characterized in that: described " U " shape pipe two ends mouth of pipe line of centres and little header are acute angle.
5. a kind of economizer according to claim 1, is characterized in that: in described long header, be provided with some dividing plates.
6. a kind of economizer according to claim 1, is characterized in that: economizer surrounding is provided with outer casing.
7. a kind of economizer according to claim 1, is characterized in that: described source nipple side is provided with the gas baffle perpendicular to long header.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320766966.7U CN203703938U (en) | 2013-11-29 | 2013-11-29 | Coal economizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320766966.7U CN203703938U (en) | 2013-11-29 | 2013-11-29 | Coal economizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203703938U true CN203703938U (en) | 2014-07-09 |
Family
ID=51054373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320766966.7U Expired - Lifetime CN203703938U (en) | 2013-11-29 | 2013-11-29 | Coal economizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203703938U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122932A (en) * | 2016-07-01 | 2016-11-16 | 无锡锡能锅炉有限公司 | Gas fired-boiler economizer |
-
2013
- 2013-11-29 CN CN201320766966.7U patent/CN203703938U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122932A (en) * | 2016-07-01 | 2016-11-16 | 无锡锡能锅炉有限公司 | Gas fired-boiler economizer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104315898A (en) | Flue gas waste heat recovery heat exchanger | |
| CN102901222A (en) | Forced finned straight pipe dual-ring-shaped condensation heat-supply heat exchanger | |
| CN204806941U (en) | Heat exchanger | |
| CN104154661A (en) | Fuel oil and fuel gas angle pipe boiler structure for strengthening convection pipe screen through needle fins | |
| CN105042622A (en) | Air preheater based one air-water heat exchange | |
| CN103512412A (en) | U-shaped heat pipe heat exchange elements and U-shaped heat pipe heat exchanger integrated with electrostatic dust collector | |
| CN103759288A (en) | Novel plate type air preheater | |
| CN104033881B (en) | A kind of shell-and-plate economizer | |
| CN204854428U (en) | MGGH heat transfer system | |
| CN203703938U (en) | Coal economizer | |
| CN201028567Y (en) | Heat pipe type air preheater | |
| CN203286917U (en) | Steam air pre-heater | |
| CN204005923U (en) | A kind of boiler waste heat recovery system | |
| CN202403247U (en) | Corner-tube waste heat boiler | |
| CN202304502U (en) | Cylindrical heat exchanger | |
| CN102200398B (en) | Double-shell heat exchanger | |
| CN209672903U (en) | Oil field gathering and transportation dual-purpose heat exchanger | |
| CN113108300A (en) | Double-layer multi-convection heating device for large-scale assembled boiler and working method thereof | |
| CN104501414A (en) | Condensing secondary heat exchanger and heat exchanger group | |
| CN202956008U (en) | Hot mixing type heater for heating network | |
| CN203115974U (en) | Plate-shell-type coal economizer | |
| CN202945306U (en) | Device utilizing flue waste heat to circularly heat plating assistant agent | |
| CN2482660Y (en) | Heat conducting oil furnace | |
| CN202432894U (en) | Efficient wave-surface plate type coal economizers | |
| CN203731907U (en) | U-shaped heat pipe heat exchanging element and U-shaped heat pipe heat exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |
|
| CX01 | Expiry of patent term |