CN2644899Y - Condensing type coal economizer - Google Patents
Condensing type coal economizer Download PDFInfo
- Publication number
- CN2644899Y CN2644899Y CN 03232439 CN03232439U CN2644899Y CN 2644899 Y CN2644899 Y CN 2644899Y CN 03232439 CN03232439 CN 03232439 CN 03232439 U CN03232439 U CN 03232439U CN 2644899 Y CN2644899 Y CN 2644899Y
- Authority
- CN
- China
- Prior art keywords
- deashing
- heat exchanger
- exchanger tube
- hook
- condensing economizer
- 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
Links
- 239000003245 coal Substances 0.000 title description 3
- 239000000463 material Substances 0.000 claims abstract description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000005245 sintering Methods 0.000 claims description 5
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 6
- 239000000428 dust Substances 0.000 abstract description 5
- 238000004140 cleaning Methods 0.000 abstract 3
- 239000002253 acid Substances 0.000 abstract 1
- 230000008021 deposition Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000003517 fume Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Images
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a condensing economizer. The heat exchange tube is fixed between the tube plates positioned at two sides, the connecting elbow is connected with the heat exchange tube, the inner layer of the heat exchange tube is sintered with a temperature-resistant, acid-resistant and wear-resistant smooth material, the dust cleaning device is composed of a dust cleaning hook and a pull rod, and the dust cleaning hook is arranged between the heat exchange tubes. The utility model has the advantages of corrosion resistance, dust deposition resistance, capability of greatly improving the thermal efficiency of the boiler, compact structure, long service life and the like, and is an important device for saving energy of the boiler.
Description
One, technical field
The utility model relates to a kind of economizer, and is especially relevant with the condensing economizer.
Two, background technology
Exhaust gas temperature is generally at 120 ℃-140 ℃, the exhaust gas temperature that uses high-sulfur fuel installs the boiler of steam air heater additional about 150 ℃, its exhaust gas temperature is about 160 ℃, the exhaust gas temperature of individual boilers can be up to 180 ℃-200 ℃, so the boiler exhaust gas very big waste heat source that is potentiality.Achievement in research shows that if exhaust gas temperature reduces by 10 ℃, boiler thermal output will improve 0.7-0.8%, and fuel saving is 1%; When utilizing the flue gas heated feed water, if feed temperature improves 1 ℃, then exhaust gas temperature reduces 2-3 ℃, and 6-7 ℃ of feed temperature rising, then boiler thermal output improves 1%.Though and existing steel pipe type low-pressure coal saver can improve boiler thermal output, exist deficiency such as oxygen corrosion on the sulfuric acid corrosion on the fume side tube wall, stifled ash, wearing and tearing and water side pipe wall and incrustation easily.
Three, summary of the invention
The purpose of this utility model provides a kind of withstand corrosion, and anti-dust stratification can significantly improve boiler thermal output, compact conformation, the condensing economizer that the life-span is long.
For achieving the above object, the utility model is realized by following technical solution: the condensing economizer, comprise heat exchanger tube, and the collection case, tube sheet and connecting bend, heat exchanger tube are fixed between the tube sheet of two sides, and connecting bend connects heat exchanger tube.
Described condensing economizer, the outer sintering heatproof of heat exchanger tube, acidproof and wear-resisting lubricious material.
Described condensing economizer, heat exchanger tube internal layer sintering heatproof, acidproof and wear-resisting lubricious material.
Described condensing economizer, it also comprises deashing device, and deashing device is made up of deashing hook and pull bar, and the deashing hook places between the heat exchanger tube.
Described condensing economizer, deashing hook and pull bar adopt round steel to make, and polytetrafluoroethylene (PTFE) is laid on its surface.
The utility model compared with prior art has the following advantages: (one) is because heat exchanger tube adopts acidproof, wear-resistant coating steel pipe, thereby can solve sulfuric acid corrosion on the indeterminable fume side tube wall of steel pipe type low-pressure coal saver, oxygen corrosion and this road difficult problem of incrustation on wearing and tearing and the water side pipe wall; (2) be in the condensing economizer, deashing device to be set, can effectively solve the knot ash and the stifled grey problem of fume side heating surface; (3) be to adopt fixedly heat exchanger tube of both sides tube sheet, can solve the connectivity problem of condensing economizer, the tube vibration problem that also can avoid heat exchanger tube to produce simultaneously because of sweep of gases; (4) be that energy-saving effect is fairly obvious; (5) be that the condensing economizer is arranged in the boiler low-temperature section air preheater back-end ductwork afterwards, its water inlet pipe and water outlet pipe is connected to the low pressure part of Steam Turbine Regenerative System, and the safe operation reliability of condensing economizer and smoke discharging residual heat organic efficiency are improved.
Four, description of drawings
Fig. 1 is the structural representation of the utility model condensing economizer.
Fig. 2 is the distribution schematic diagram of the utility model condensing economizer heat exchanger tube on tube sheet.
Fig. 3 is the structural representation of the utility model condensing economizer deashing device.
Five, the specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
As shown in Figures 1 and 2; the condensing economizer; comprise heat exchanger tube 2; collection case 4; tube sheet 1; connecting bend 3 and deashing device 5; heat exchanger tube 2 is fixed between the tube sheet 1 of two sides; connecting bend 3 connects heat exchanger tube 2, and the Inlet and outlet water place of two ends heat exchanger tube 2 is connected with collection case 4 respectively up and down, and collection case 4 is connected with the water inlet pipe and water outlet pipe of outside respectively; in heat exchanger tube 2 ectonexine sintering heatproofs; acidproof and wear-resisting lubricious material; as enamel, as shown in Figure 3, deashing device 5 is made up of deashing hook 6 and pull bar 7; deashing hook 6 places between the heat exchanger tube 2; regularly pulling pull bar 7 just can reach the purpose of deashing, and deashing hook 6 and pull bar 7 are to adopt round steel to make, and scribble the polytetrafluoroethylene (PTFE) protective layer on its surface.
Claims (7)
1, a kind of condensing economizer comprises heat exchanger tube (2), collection case (4), and it is characterized in that: it also comprises tube sheet (1) and connecting bend (3), and heat exchanger tube (2) is fixed between the tube sheet (1) that is positioned at two sides, and connecting bend (3) connects heat exchanger tube (2).
2, condensing economizer according to claim 1 is characterized in that: the outer sintering heatproof of heat exchanger tube (2), acidproof and wear-resisting lubricious material.
3, condensing economizer according to claim 1 and 2 is characterized in that: heat exchanger tube (2) internal layer sintering heatproof, acidproof and wear-resisting lubricious material.
4, condensing economizer according to claim 1 and 2 is characterized in that: it also comprises deashing device (5), and deashing device (5) is made up of deashing hook (6) and pull bar (7), and deashing hook (6) places between the heat exchanger tube (2).
5, condensing economizer according to claim 3 is characterized in that: it also comprises deashing device (5), and deashing device (5) is made up of deashing hook (6) and pull bar (7), and deashing hook (6) places between the heat exchanger tube (2).
6, condensing economizer according to claim 4 is characterized in that: deashing hook (6) and pull bar (7) adopt round steel to make, and polytetrafluoroethylene (PTFE) is laid on its surface.
7, condensing economizer according to claim 5 is characterized in that: deashing hook (6) and pull bar (7) adopt round steel to make, and polytetrafluoroethylene (PTFE) is laid on its surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03232439 CN2644899Y (en) | 2003-06-20 | 2003-06-20 | Condensing type coal economizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03232439 CN2644899Y (en) | 2003-06-20 | 2003-06-20 | Condensing type coal economizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2644899Y true CN2644899Y (en) | 2004-09-29 |
Family
ID=34291450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03232439 Expired - Fee Related CN2644899Y (en) | 2003-06-20 | 2003-06-20 | Condensing type coal economizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2644899Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147107A (en) * | 2011-04-22 | 2011-08-10 | 广州迪森热能技术股份有限公司 | Boiler for biomass circulating fluidized bed |
| CN103363663A (en) * | 2013-07-26 | 2013-10-23 | 江苏双良锅炉有限公司 | Large-module assembled high-efficiency condensing gas-fired hot water boiler |
| CN106122932A (en) * | 2016-07-01 | 2016-11-16 | 无锡锡能锅炉有限公司 | Gas fired-boiler economizer |
| CN108361990A (en) * | 2018-04-24 | 2018-08-03 | 浙江长兴亿安贝电器有限公司 | A kind of electric heater of scale removal heat exchange |
| WO2019010589A1 (en) * | 2017-07-12 | 2019-01-17 | 王亚娟 | Low-temperature coal-saving apparatus capable of sweeping ash |
| CN112665446A (en) * | 2020-12-31 | 2021-04-16 | 洛阳超蓝节能技术有限公司 | Ash removal mechanism, ash removal device, heat exchanger, control method and storage medium |
-
2003
- 2003-06-20 CN CN 03232439 patent/CN2644899Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147107A (en) * | 2011-04-22 | 2011-08-10 | 广州迪森热能技术股份有限公司 | Boiler for biomass circulating fluidized bed |
| CN103363663A (en) * | 2013-07-26 | 2013-10-23 | 江苏双良锅炉有限公司 | Large-module assembled high-efficiency condensing gas-fired hot water boiler |
| CN103363663B (en) * | 2013-07-26 | 2016-04-27 | 江苏双良锅炉有限公司 | Heavy die block assembling high-efficiency condensing type gas-fired water heating boiler |
| CN106122932A (en) * | 2016-07-01 | 2016-11-16 | 无锡锡能锅炉有限公司 | Gas fired-boiler economizer |
| WO2019010589A1 (en) * | 2017-07-12 | 2019-01-17 | 王亚娟 | Low-temperature coal-saving apparatus capable of sweeping ash |
| CN108361990A (en) * | 2018-04-24 | 2018-08-03 | 浙江长兴亿安贝电器有限公司 | A kind of electric heater of scale removal heat exchange |
| CN112665446A (en) * | 2020-12-31 | 2021-04-16 | 洛阳超蓝节能技术有限公司 | Ash removal mechanism, ash removal device, heat exchanger, control method and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201255417Y (en) | Flue condensation economizer | |
| CN101706109B (en) | Embedded deep cooler for boiler flue gas | |
| CN2644899Y (en) | Condensing type coal economizer | |
| CN112879893A (en) | Waste heat recovery system, waste heat recovery method and boiler system | |
| CN105020737A (en) | System for improving safety of air pre-heater by utilizing spiral-fin type heat exchanger | |
| CN201463284U (en) | Energy-saving device for domestic gas instantaneous water heater | |
| CN208398148U (en) | A kind of integrated large stove of waste heat conversion | |
| CN202204158U (en) | Condensed flue gas energy saver | |
| CN201593862U (en) | Efficient energy-saving cyclone heat transfer dedusting smokeless boiler | |
| CN203216334U (en) | Flue gas waste heat recovery unit and device breaking through low temperature dew point | |
| CN203771707U (en) | Flue gas waste heat recycling system for boiler | |
| CN100547314C (en) | Compound gas superconductive heater | |
| CN2767901Y (en) | Condensing type gas-fired quick water heater | |
| CN214581010U (en) | Waste heat recovery system and boiler system | |
| CN2733242Y (en) | Heating furnace | |
| CN112879894A (en) | Waste heat recovery system, waste heat recovery method and boiler system | |
| CN2689125Y (en) | Waste heat recovering apparatus of boiler | |
| CN101956986A (en) | A low-temperature waste heat recovery method for waste incineration flue gas | |
| CN201429310Y (en) | Indirect fuel heating and drying furnace in coating industry | |
| CN2643172Y (en) | An energy-saving and gas-saving apparatus for natural gas boiler | |
| CN205782834U (en) | A kind of residual heat from boiler fume utilizes combining heating system | |
| CN1908568A (en) | Fume-fume hot pipe heater exchanger for fume desulphurization in heat-engine plant | |
| CN2338628Y (en) | Heat-pipe type flue gas heat recovery arrangement for heating air | |
| CN112879895A (en) | Waste heat recovery system, boiler system and waste heat recovery method | |
| CN201331183Y (en) | Compound gas superconducting heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |