CN213238548U - Auxiliary device for flue gas waste heat recovery - Google Patents
Auxiliary device for flue gas waste heat recovery Download PDFInfo
- Publication number
- CN213238548U CN213238548U CN202021490585.7U CN202021490585U CN213238548U CN 213238548 U CN213238548 U CN 213238548U CN 202021490585 U CN202021490585 U CN 202021490585U CN 213238548 U CN213238548 U CN 213238548U
- Authority
- CN
- China
- Prior art keywords
- pipe
- flue gas
- heat
- waste heat
- heat exchange
- 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
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 239000003546 flue gas Substances 0.000 title claims abstract description 31
- 239000002918 waste heat Substances 0.000 title claims abstract description 28
- 238000011084 recovery Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000000428 dust Substances 0.000 claims abstract description 25
- 238000005086 pumping Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 description 5
- 238000004321 preservation Methods 0.000 description 5
- 238000003723 Smelting Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Images
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model is suitable for a flue gas waste heat recovery technical field provides a flue gas waste heat recovery's auxiliary device, including the intake pipe, the intake pipe links to each other with the heat exchanger, and heat exchanger internally mounted has a heat exchange tube, and the heat exchanger afterbody is connected with the dust remover, and the afterbody of dust remover is connected with the head of blast pipe, installs the heat exchange tube in the blast pipe. The outlet of the heat exchanger in the exhaust pipe is connected with a water pump, the water pump is connected with a water storage tank, and the water storage tank can introduce hot water preheated by the exhaust pipe into the water inlet pipe. The preheating of the exhaust pipe improves the temperature of water in the air inlet pipe, and improves the efficiency of flue gas waste heat recovery. And the heat exchanger and the dust remover are combined together, so that the heat loss of an intermediate link is reduced.
Description
Technical Field
The utility model belongs to the technical field of flue gas waste heat recovery, especially, relate to a flue gas waste heat recovery's auxiliary device.
Background
Due to energy shortage, the energy-saving work is further developed. Various novel energy-saving advanced furnace types are gradually improved, but the technology for reducing the heat loss of the exhaust gas and recovering the waste heat of the exhaust gas is still not rapidly developed. In order to further improve the heat efficiency of the kiln and achieve the purposes of energy conservation and consumption reduction, the improvement of the efficiency of recovering the waste heat of the flue gas is also an important energy-saving way. The flue gas emission temperature of industrial boilers, fluidized bed boilers, heat conduction oil furnaces, smelting furnaces, metallurgical furnaces, blast furnace hot blast furnaces and heating furnaces in the industries of glass, metallurgy, smelting, petrifaction, building materials, ceramics, light textile and the like is higher than 280 ℃, and flue gas waste heat recovery can be carried out in chemical fertilizer plants and paper mills. Heat exchange tubes in various heat exchangers for recovering waste heat of flue gas at present are often blocked after being used for a period of time, and are inconvenient to disassemble, assemble and clean. And the waste heat recovery device usually only has one-level heat exchanger, still contains a large amount of heats in the exhaust flue gas and is wasted, and the pipeline overlength of intermediate link has also caused thermal loss.
SUMMERY OF THE UTILITY MODEL
The utility model provides a waste heat recovery's auxiliary device aims at solving the problem that the heat exchange tube among the current flue gas waste heat recovery device is changed trouble and is improved waste heat recovery efficiency.
The utility model is realized in such a way, an auxiliary device for recovering flue gas waste heat, which is characterized in that an air inlet pipe is fixedly connected with a heat exchanger, the tail part of the heat exchanger is fixedly connected with a dust remover, the tail part of the dust remover is connected with an exhaust pipe, the heat exchanger consists of a heat exchange pipe and a heat preservation pipe, the heat exchange pipe is arranged on a hook at the top part of the inner wall of the heat preservation pipe through a lifting ring at the top part of the heat exchange pipe, the upper end of the heat exchange pipe is provided with an inlet pipe, the lower end of the heat exchange pipe is provided with an outlet pipe, an outlet heat exchange pipe is arranged in the exhaust pipe, the upper end of the outlet heat exchange pipe is connected with an outlet water outlet pipe, the outlet water outlet pipe is connected with a water pumping pump, the water pumping pump is, the water storage tank is connected with the water inlet pipe.
Furthermore, a filter screen is installed in the air inlet pipe.
Furthermore, a heat preservation pipe is arranged outside the heat exchange pipe.
Furthermore, the heat insulation layer is contained in the heat insulation pipe.
Further, the dust remover is an electric dust remover.
Compared with the prior art, the beneficial effects of the utility model are that:
the preheating of the exhaust pipe improves the temperature of water in the air inlet pipe, and improves the efficiency of flue gas waste heat recovery. The heat exchangers are arranged on the air inlet pipe and the exhaust pipe, so that the utilization rate of waste heat recovery is improved. And by adopting multi-stage dust removal measures, the dust content of discharged flue gas is greatly reduced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an auxiliary device for recovering flue gas waste heat;
FIG. 2 is a schematic view of a heat exchange tube configuration;
FIG. 3 is a sectional view of the insulating tube;
FIG. 4 is a schematic view of an air inlet duct configuration;
fig. 5 is a schematic view of an outlet heat exchange tube configuration.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-5, the utility model relates to an auxiliary device for flue gas waste heat recovery, which is characterized in that an air inlet pipe 1 is fixedly connected with a heat exchanger 2, the tail part of the heat exchanger 2 is fixedly connected with a dust remover 3, the tail part of the dust remover 3 is connected with an exhaust pipe 4, the heat exchanger 2 is composed of a heat exchange pipe 21 and a heat preservation pipe 22, the heat exchange pipe 21 is installed on a hook 222 at the top of the inner wall of the heat preservation pipe 22 through a hanging ring 213 at the top of the heat exchange pipe 21, the upper end of the heat exchange pipe 21 is provided with an inlet pipe 211, the lower end of the heat exchange pipe is provided with an outlet pipe 212, an outlet heat exchange pipe 41 is installed in the exhaust pipe 4, the upper end of the outlet heat exchange pipe 41 is connected with an outlet pipe 412, the lower end of the outlet, the water storage tank 6 is connected with the water outlet pipe 212, the water pumping pump 5 is connected with the water storage tank 6 through a pipeline, the water storage tank 6 is connected with the water inlet pipe 211, and a filter screen 11 is arranged in the air inlet pipe 1 and can roughly filter some dust with larger particles; the heat insulation layer is clamped between the heat insulation pipes 22, so that heat loss can be reduced; the dust remover 3 is an electric dust remover and can remove most of dust in the flue gas.
The utility model discloses a theory of operation: the flue gas is introduced into the air inlet pipe 1, so that the flue gas and the heat exchanger 2 in the air inlet pipe 1 perform heat exchange, and the heat insulation pipe 22 outside the heat exchanger 2 can reduce the heat exchange with air. After the first heat exchange, the dust is removed in the electric dust remover 3. Flue gas after the dust removal carries out the heat transfer of second time in blast pipe 4, and pump 5 that draws water can go into water storage box 6 with the hot water pump through preheating, and water storage box 6 can directly let in the hot water that preheats into inlet tube 211, and the hot water after preheating carries out the heat transfer in heat exchanger 2, with the waste heat make full use of in the flue gas.
The utility model has the advantages that: the preheating of the exhaust pipe 4 improves the temperature of hot water in the air inlet pipe 1, and improves the efficiency of flue gas waste heat recovery. The heat exchanger 2 and the dust remover 3 are combined together, so that the heat loss of the flue gas in the pipeline is reduced. The heat exchangers 2 are arranged on the air inlet pipe 1 and the air outlet pipe 3, and the utilization rate of waste heat recovery is improved. And by adopting multi-stage dust removal measures, the dust content of discharged flue gas is greatly reduced.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. The utility model provides an auxiliary device of flue gas waste heat recovery, its characterized in that, includes intake pipe (1) and heat exchanger (2) fixed connection, the afterbody and dust remover (3) fixed connection of heat exchanger (2), the afterbody and the blast pipe (4) of dust remover (3) are connected, heat exchanger (2) comprise heat exchange tube (21) and insulating tube (22), heat exchange tube (21) are installed on couple (222) at insulating tube (22) inner wall top through rings (213) at its top, inlet tube (211) are equipped with to the upper end of heat exchange tube (21), outlet pipe (212) are equipped with to the lower extreme, export heat exchange tube (41) is equipped with in blast pipe (4), export heat exchange tube (41) upper end and export outlet pipe (412) pipe connection, export heat exchange tube (41) lower extreme and export inlet tube (411) pipe connection, export outlet pipe (412) and water pump (5) are connected, the water pumping pump (5) is connected with the water storage tank (6) through a pipeline, the water storage tank (6) is connected with the water outlet pipe (212), and the water storage tank (6) is connected with the water inlet pipe (211).
2. The auxiliary device for recovering the waste heat of the flue gas as recited in claim 1, wherein a filter screen (11) is installed in the air inlet pipe (1).
3. The auxiliary device for flue gas waste heat recovery according to claim 1, wherein the hook (222) is a movable hook.
4. The auxiliary device for recovering the waste heat of flue gas as claimed in claim 1, wherein the heat-insulating pipe (22) is internally provided with a heat-insulating layer (221).
5. The auxiliary device for recovering the waste heat of the flue gas as recited in claim 1, wherein the dust remover (3) is an electric dust remover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021490585.7U CN213238548U (en) | 2020-07-26 | 2020-07-26 | Auxiliary device for flue gas waste heat recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021490585.7U CN213238548U (en) | 2020-07-26 | 2020-07-26 | Auxiliary device for flue gas waste heat recovery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213238548U true CN213238548U (en) | 2021-05-18 |
Family
ID=75890544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021490585.7U Expired - Fee Related CN213238548U (en) | 2020-07-26 | 2020-07-26 | Auxiliary device for flue gas waste heat recovery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213238548U (en) |
-
2020
- 2020-07-26 CN CN202021490585.7U patent/CN213238548U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201338983Y (en) | Fume preheating equipment for glass batch pure oxygen combustion melting furnace | |
| CN105509492B (en) | A kind of Alumina Rotary Kiln fume afterheat and CO2 recovery systems and method | |
| CN202836236U (en) | Aluminum filing drying preheating device | |
| CN213238548U (en) | Auxiliary device for flue gas waste heat recovery | |
| CN202141326U (en) | Flue heat exchange device for tunnel kiln | |
| CN206449619U (en) | Waste heat recycles equipment in a kind of Metal In Shaft Furnace | |
| CN212300037U (en) | Corrugated pipe energy saver suitable for smoking furnace | |
| CN201653168U (en) | Heat pipe type waste heat recovery special apparatus for high temperature high dust laden smoke in metallurgy furnace | |
| CN101298963B (en) | Graphitization furnace flue type residual heat heat-exchanging device | |
| CN206274230U (en) | A kind of superconduction fluidised form heat exchanger | |
| CN201040312Y (en) | Reclaiming utilizing device for hot-chamber die casting machine smelter remaining heat | |
| CN101995166A (en) | Metallurgical furnace dedusting waste heat recovery machine and method | |
| CN112097530A (en) | Novel preheated air heat exchanger | |
| CN211399853U (en) | Efficient and convenient air preheater | |
| CN2689125Y (en) | Waste heat recovering apparatus of boiler | |
| CN203419945U (en) | Hot-blast stove provided with high-temperature flues and low-temperature flues | |
| CN204678354U (en) | A kind of heat-accumulating type high-temperature oxidation treatment device | |
| CN204958706U (en) | Circumferential weld formula high temperature heat exchanger | |
| CN209371856U (en) | A kind of waste heat boiler device for recycling heat | |
| CN215113649U (en) | Novel waste heat utilization drying system | |
| CN218723309U (en) | Heat exchanger for industrial waste gas and air | |
| CN220771831U (en) | Energy-saving submerged arc furnace | |
| CN215491139U (en) | Waste heat recycling device for industrial glass fiber kiln | |
| CN211424414U (en) | Solid salt incineration heat energy comprehensive utilization device | |
| CN218573200U (en) | Blast furnace raw gas dust removal equipment capable of adjusting air inlet temperature |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210518 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |