CN213335745U - Fin type coal economizer directly contacting with flame - Google Patents
Fin type coal economizer directly contacting with flame Download PDFInfo
- Publication number
- CN213335745U CN213335745U CN202021817417.4U CN202021817417U CN213335745U CN 213335745 U CN213335745 U CN 213335745U CN 202021817417 U CN202021817417 U CN 202021817417U CN 213335745 U CN213335745 U CN 213335745U
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- finned
- tube
- fixedly connected
- flame
- pipe
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- 239000003245 coal Substances 0.000 title claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000003546 flue gas Substances 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 10
- 241000270295 Serpentes Species 0.000 claims abstract description 7
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 6
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
Images
Classifications
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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 a direct contact fin type economizer with flame, which comprises a tube plate, wherein a fin tube is inserted in the tube plate, the fin tube is sleeved on the outer wall of the fin tube, the two ends of the fin tube arranged from top to bottom are connected through a snake bend, the end part of the fin tube arranged at the uppermost row is fixedly connected with a first collecting pipe, and the upper end of the first collecting pipe is fixedly connected with a water outlet pipe; the end part of the finned tube at the lowest row is fixedly connected with the same second collecting pipe, the lower end of the second collecting pipe is fixedly connected with a water inlet pipe, and the finned tube is used for exchanging heat between a cold source water source flowing in from the water inlet pipe and boiler flue gas of a heat treatment production line outside the finned tube and conveying the cold source water source after heat exchange to the first collecting pipe and flowing out from a water outlet pipe; the finned tube and the finned plate are made of high-temperature-resistant 310S materials. The utility model can be directly contacted with flame; the phenomenon of air blockage can not occur.
Description
The technical field is as follows:
the utility model relates to a coal economizer technical field especially relates to one kind with flame direct contact fin formula coal economizer.
Background art:
the economizer is a heat exchange device for heating feed water by using the heat of the flue gas at the tail of the boiler. By additionally arranging the coal economizer, the exhaust gas temperature can be further reduced, the heat efficiency of the boiler is improved, and coal is saved; and meanwhile, a coal economizer is additionally arranged to preheat water, so that a part of heating surface is replaced, and the initial investment of the boiler is reduced. In modern boilers, economizers have become an indispensable part.
The coal economizer can be divided into a cast iron coal economizer and a steel pipe coal economizer according to the used materials. The cast iron economizer has low strength, can not bear high pressure, has good corrosion resistance, and is usually used on a small-capacity boiler. At present, a large-medium-capacity boiler widely adopts a steel pipe economizer, and has the advantages that: the strength is high, the impact can be borne, and the work is reliable; meanwhile, the heat transfer performance is good, the weight is light, the volume is small, the price is low, and the defects are as follows: the temperature resistance and the corrosion resistance are poor.
The boiler of the heat treatment production line utilizes natural gas combustion to carry out heat treatment processing on workpieces, the flame of the boiler is directly discharged in the environment, a large amount of energy is wasted if the flame is not utilized, and the flame cannot be used by common materials due to the fact that the temperature is generally higher than 1200 ℃, and the utilization of the heat energy of the boiler flue gas of the existing heat treatment production line cannot be met.
The utility model has the following contents:
the utility model aims to solve the technical problem that the existing economizer can not resist high temperature and can not satisfy the boiler flue gas heat energy utilization of the existing heat treatment production line, and provides a finned economizer in direct contact with flame.
In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:
the finned coal economizer directly contacting with flame comprises a tube plate, wherein finned tubes are inserted in the tube plate in a penetrating manner, finned plates are sleeved on the outer walls of the finned tubes in a penetrating manner, two ends of finned tubes in upper and lower rows are connected through a snake-shaped elbow, the end part of the finned tube in the uppermost row is fixedly connected with a same first collecting pipe, and the upper end of the first collecting pipe is fixedly connected with a water outlet pipe; the end part of the finned tube at the lowest row is fixedly connected with the same second collecting pipe, the lower end of the second collecting pipe is fixedly connected with a water inlet pipe, and the finned tube is used for exchanging heat between a cold source water source flowing in from the water inlet pipe and boiler flue gas of a heat treatment production line outside the finned tube and conveying the cold source water source after heat exchange to the first collecting pipe and flowing out from a water outlet pipe; the finned tube and the finned plate are made of high-temperature-resistant 310S materials.
Furthermore, an exhaust valve is installed and connected to the first collecting pipe through threads, and a valve body of the exhaust valve vertically faces upward.
Furthermore, the inner ring of the fin plate is larger than the outer diameter of the finned tube, and the fin plate and the finned tube are welded and fixed through one-point welding.
Furthermore, both sides of the tube plate are fixedly connected with side plates, the side plates and the tube plate are enclosed to form a closed straight tubular structure, the upper end and the lower end of each side plate are open and used for heat source flue gas generated by a boiler of a heat treatment production line, the outer side of the tube plate is fixedly connected with a sealing cover shell, the sealing cover shell covers the snake bend, the first collecting pipe and the second collecting pipe, and the water outlet pipe and the water inlet pipe penetrate through the sealing cover shell.
Furthermore, a lifting lug is fixedly connected to the side plate.
Furthermore, the bottom of the side plate is provided with a flanging for fixed installation.
The utility model provides a pair of with flame direct contact fin formula economizer has following beneficial effect: in the using process, heat source flue gas with flame generated by a boiler of a heat treatment production line passes through the pipe plates, a water source enters the second collecting pipe from the water inlet pipe and enters the finned pipe from the second collecting pipe, the water source exchanges heat with the flue gas filled outside the finned pipe in the finned pipe, and the water source after exchanging heat enters the first collecting pipe and then flows out from the water outlet pipe; the finned tube and the finned plate are made of high-temperature-resistant 310S materials, and the finned tube and the finned plate can be in direct contact with flame due to the characteristic of high-temperature resistance of the materials; the coal economizer adopts a snake bend structure, the water flow velocity in the pipe reaches more than 1.5m/s, the gas-water mixture in the pipe can be effectively taken away, and meanwhile, an exhaust valve is arranged at the topmost end of a water collecting pipe of the coal economizer, so that the phenomenon of gas blockage can not occur, and the problem is effectively solved; when the finned tube is used, the finned tube is subjected to high-temperature heating expansion deformation, and a gap exists between a fin plate outside the finned tube and the finned tube, so that the finned tube can be freely deformed while the heat exchange effect of the fin plate is improved, and the finned tube is prevented from being damaged.
Description of the drawings:
the following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings:
fig. 1 is a schematic front view of a finned economizer in direct contact with flame according to the present invention;
fig. 2 is a schematic side sectional structure view of a fin-type economizer in direct contact with flame according to the present invention;
fig. 3 is a schematic side view of the serpentine elbow portion of the fin-type economizer in direct contact with flame according to the present invention.
The reference numbers in the figures illustrate: 1. a tube sheet; 2. a finned tube; 21. a fin plate; 3. a snake bend; 4. a first header; 41. a water outlet pipe; 5. a second header; 51. a water inlet pipe; 6. an exhaust valve; 7. a side plate; 71. Lifting lugs; 72. flanging; 8. the housing is sealed.
The specific implementation mode is as follows:
it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as up-down-left-right-front-back … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components in a specific posture (as shown in the drawings) -motion situation, etc., and if the specific posture is changed, the directional indicator is changed accordingly, and the connection may be a direct connection or an indirect connection.
As shown in fig. 1-3, a finned economizer in direct contact with flame comprises a tube plate 1, wherein finned tubes 2 are inserted into the tube plate 1, finned plates 21 are sleeved on the outer walls of the finned tubes 2 in a penetrating manner, two ends of the finned tubes 2 in adjacent rows are connected through serpentine elbows 3, the end part of the finned tube 2 in the uppermost row is fixedly connected with a same first collecting pipe 4, and the upper end of the first collecting pipe 4 is fixedly connected with a water outlet pipe 41; the end part of the finned tube 2 at the lowest row is fixedly connected with the same second collecting pipe 5, the lower end of the second collecting pipe 5 is fixedly connected with a water inlet pipe 51, and the finned tube 2 is used for exchanging heat between a cold source water source flowing from the water inlet pipe 51 and boiler flue gas of a heat treatment production line outside the finned tube 2 and conveying the cold source water source after heat exchange to the first collecting pipe 4 and flowing out from a water outlet pipe 41; the finned tube 2 and the finned plate 21 are made of high-temperature-resistant 310S materials.
Furthermore, an exhaust valve 6 is installed and connected to the first collecting pipe 4 through threads, and a valve body of the exhaust valve 6 vertically faces upward.
Further, the inner ring of the fin plate 21 is larger than the outer diameter of the finned tube 2, and the fin plate 21 and the finned tube 2 are fixed by spot welding.
Further, both sides of the tube plate 1 are fixedly connected with side plates 7, the side plates 7 and the tube plate 1 enclose a closed straight tubular structure, the upper end and the lower end of the closed straight tubular structure are open and used for heat source flue gas generated by a boiler of a heat treatment production line, the outer side of the tube plate 1 is fixedly connected with a sealing housing 8, the sealing housing 8 covers the outer sides of the serpentine elbow 3, the first collecting pipe 4 and the second collecting pipe 5, and the water outlet pipe 41 and the water inlet pipe 51 penetrate through the sealing housing 8.
Further, a lifting lug 71 is fixedly connected to the side plate 7.
Further, the bottom of the side plate 7 is provided with a flange 72 for fixed installation.
The utility model provides a pair of with flame direct contact fin formula economizer has following beneficial effect: in the using process, heat source flue gas with flame generated by a boiler of a heat treatment production line passes through the pipe plates, a water source enters the second collecting pipe from the water inlet pipe and enters the finned pipe from the second collecting pipe, the water source exchanges heat with the flue gas filled outside the finned pipe in the finned pipe, and the water source after exchanging heat enters the first collecting pipe and then flows out from the water outlet pipe; the finned tube and the finned plate are made of high-temperature-resistant 310S materials, and the finned tube and the finned plate can be in direct contact with flame due to the characteristic of high-temperature resistance of the materials; the coal economizer adopts a snake bend structure, the water flow velocity in the pipe reaches more than 1.5m/s, the gas-water mixture in the pipe can be effectively taken away, and meanwhile, an exhaust valve is arranged at the topmost end of a water collecting pipe of the coal economizer, so that the phenomenon of gas blockage can not occur, and the problem is effectively solved; when the finned tube is used, the finned tube is subjected to high-temperature heating expansion deformation, and a gap exists between a fin plate outside the finned tube and the finned tube, so that the finned tube can be freely deformed while the heat exchange effect of the fin plate is improved, and the finned tube is prevented from being damaged.
The foregoing shows and describes the general principles, essential features, and features of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the description of the above embodiments and the description is only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and these changes and modifications are all within the scope of the present invention as claimed. The scope of the invention is to be protected by the following claims and their equivalents.
Claims (6)
1. The utility model provides a with flame direct contact fin formula economizer which characterized in that: the finned tube type heat exchanger comprises a tube plate (1), wherein finned tubes (2) are inserted in the tube plate (1), finned plates (21) are sleeved on the outer walls of the finned tubes (2) in a penetrating manner, the two ends of the finned tubes (2) in the upper row and the lower row are connected through a snake bend (3), the end part of the finned tube (2) in the uppermost row is fixedly connected with a same first collecting pipe (4), and the upper end of the first collecting pipe (4) is fixedly connected with a water outlet pipe (41); the end part of the finned tube (2) at the lowest row is fixedly connected with the same second collecting tube (5), the lower end of the second collecting tube (5) is fixedly connected with a water inlet tube (51), and the finned tube (2) is used for exchanging heat between a cold source water source flowing in from the water inlet tube (51) and boiler flue gas of a heat treatment production line outside the finned tube (2) and conveying the cold source water source after heat exchange to the first collecting tube (4) and then flowing out from a water outlet tube (41); the finned tube (2) and the finned plate (21) are made of high-temperature-resistant 310S materials.
2. The finned coal economizer in direct contact with flame of claim 1 wherein: the first collecting pipe (4) is connected with an exhaust valve (6) through threads in an installing mode, and a valve body of the exhaust valve (6) vertically faces upwards.
3. The finned coal economizer in direct contact with flame of claim 1 wherein: the inner ring of the fin plate (21) is larger than the outer diameter of the finned tube (2), and the fin plate (21) and the finned tube (2) are welded and fixed through one-point welding.
4. The finned coal economizer in direct contact with flame of claim 1 wherein: the utility model discloses a heat treatment device, including pipe sheet (1), the both sides fixedly connected with curb plate (7) of pipe sheet (1), curb plate (7) and pipe sheet (1) enclose synthetic confined straight tubular structure and the upper and lower end is uncovered and is used for the heat source flue gas that produces through the boiler of heat treatment production line, the outside fixedly connected with of pipe sheet (1) seals housing (8), seal housing (8) cover in the outside of snake bend (3) and first pressure manifold (4), second pressure manifold (5), outlet pipe (41) and inlet tube (51) pass sealed housing (8).
5. The finned coal economizer in direct contact with flame as claimed in claim 4, wherein: the side plate (7) is fixedly connected with a lifting lug (71).
6. The finned coal economizer in direct contact with flame as claimed in claim 4, wherein: and flanges (72) for fixed installation are arranged at the bottoms of the side plates (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021817417.4U CN213335745U (en) | 2020-08-27 | 2020-08-27 | Fin type coal economizer directly contacting with flame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021817417.4U CN213335745U (en) | 2020-08-27 | 2020-08-27 | Fin type coal economizer directly contacting with flame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213335745U true CN213335745U (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021817417.4U Active CN213335745U (en) | 2020-08-27 | 2020-08-27 | Fin type coal economizer directly contacting with flame |
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| Country | Link |
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| CN (1) | CN213335745U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066777A (en) * | 2020-08-27 | 2020-12-11 | 合肥宽信机电有限公司 | A fin type economizer in direct contact with flame |
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2020
- 2020-08-27 CN CN202021817417.4U patent/CN213335745U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066777A (en) * | 2020-08-27 | 2020-12-11 | 合肥宽信机电有限公司 | A fin type economizer in direct contact with flame |
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