CN212339297U - Integrated three-dimensional pipe air preheater - Google Patents
Integrated three-dimensional pipe air preheater Download PDFInfo
- Publication number
- CN212339297U CN212339297U CN202020545358.3U CN202020545358U CN212339297U CN 212339297 U CN212339297 U CN 212339297U CN 202020545358 U CN202020545358 U CN 202020545358U CN 212339297 U CN212339297 U CN 212339297U
- Authority
- CN
- China
- Prior art keywords
- heat exchange
- pipe
- air
- pipeline
- flue gas
- 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.)
- Active
Links
Images
Classifications
-
- 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
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Air Supply (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses an integrated three-dimensional pipe air preheater, which comprises an air inlet pipeline, a flue gas pipeline, an air blower and a heat exchange mechanism; the air blower for blowing air is arranged at an air inlet of the air inlet pipeline, and an air outlet of the air inlet pipeline is communicated with the boiler; and a heat exchange mechanism for transferring heat in the flue gas pipeline into the air inlet pipeline is arranged between the flue gas pipeline at the tail part of the boiler and the air inlet pipeline. This three-dimensional tub of air heater of integration can shift the heat of high temperature flue gas to the low temperature air in through setting up heat transfer mechanism to heat the low temperature air, and at the in-process that shifts the heat, the flue gas can not get into the heat transfer pipeline, thereby has protected the heat transfer pipeline, and the jam can not take place for heat transfer pipeline inside.
Description
Technical Field
The utility model relates to an air heater specifically is a three-dimensional tub of air heater of integration.
Background
The air preheater is a device for preheating air before entering a boiler to a certain degree by smoke in a flue at the tail part of the boiler through internal radiating fins. When the boiler is reacting, in order to produce coal gas, can carry out not enough burning to the buggy, can lead to containing a quantitative buggy in the flue gas like this, these buggy can pass through air heater through the flue gas, and is gone down for a long time, can lead to the buggy to be attached to inside air heater to cause the inside pipe blockage of air heater, thereby influence the heat transfer effect. To avoid this, an integrated three-dimensional tube air preheater needs to be designed to meet the demand.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a three-dimensional tub of air heater of integration to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
an integrated three-dimensional pipe air preheater comprises an air inlet pipeline, a flue gas pipeline, a blower and a heat exchange mechanism; the air blower for blowing air is arranged at an air inlet of the air inlet pipeline, and an air outlet of the air inlet pipeline is communicated with the boiler; and a heat exchange mechanism for transferring heat in the flue gas pipeline into the air inlet pipeline is arranged between the flue gas pipeline at the tail part of the boiler and the air inlet pipeline.
As a further aspect of the present invention: the heat exchange mechanism comprises an upper circulating water pump, a preheating water inlet pipe, a preheating water outlet pipe, a heating water inlet pipe, a heating water outlet pipe and a heat exchange pipe; heat exchange tubes are fixed in the air inlet pipeline and the flue gas pipeline through brackets; the upper end and the lower end of the heat exchange tube positioned in the gas inlet pipeline are respectively connected with a preheating water inlet pipe and a preheating water outlet pipe, and the upper end and the lower end of the heat exchange tube positioned in the flue gas pipeline are respectively connected with a heating water outlet pipe and a heating water inlet pipe; the preheating water inlet pipe and the preheating water outlet pipe are respectively fixed on two sides of the upper circulating water pump, and the heating water outlet pipe is connected with the heating water inlet pipe; and part of water is injected into the heat exchange tube.
As a further aspect of the present invention: the heat exchange tube is formed by arranging a plurality of groups of coiled tubes, and the plurality of groups of coiled tubes are arranged in a crossed manner.
As a further aspect of the present invention: the water outlet of the upper circulating water pump is connected with the preheating water inlet pipe, and the water inlet of the upper circulating water pump is connected with the heating water outlet pipe.
As a further aspect of the present invention: a lower circulating water pump is arranged between the preheating water outlet pipe and the heating water inlet pipe; the water inlet of the lower circulating water pump is connected with the preheating water outlet pipe, and the water outlet of the lower circulating water pump is connected with the heating water inlet pipe.
As a further aspect of the present invention: the flowing direction of the high-temperature flue gas in the flue gas pipeline is from top to bottom.
As a further aspect of the present invention: the heat exchange tube is made of copper.
As a further aspect of the present invention: heat exchange fins for further increasing the heat exchange efficiency are fixed on the two heat exchange tubes; the heat exchange fins comprise fixing rings and fins; the fixing ring is attached and fixed on the heat exchange tube, and a plurality of fins used for increasing the heat exchange area are symmetrically arranged on the outer side of the fixing ring.
As a further aspect of the present invention: the heat exchange fin is made of copper.
As a further aspect of the present invention: the materials for manufacturing the preheating water inlet pipe, the preheating water outlet pipe, the heating water inlet pipe and the heating water outlet pipe are high-temperature-resistant heat-insulating materials.
Compared with the prior art, the beneficial effects of the utility model are that: through setting up heat transfer mechanism, can be with in the heat transfer of high temperature flue gas arrives the low temperature air to heat the low temperature air, and at the in-process that shifts the heat, the flue gas can not get into the heat transfer pipeline, thereby has protected the heat transfer pipeline, and the jam can not take place for heat transfer pipeline inside.
Drawings
FIG. 1 is a schematic structural diagram of an integrated three-dimensional tube air preheater.
Fig. 2 is a schematic structural diagram of a heat exchange tube in the integrated three-dimensional tube air preheater.
FIG. 3 is a schematic structural view of heat exchange fins in an integrated three-dimensional tube air preheater.
In the figure: 1-an air inlet pipeline, 2-a flue gas pipeline, 3-a blower, 5-an upper circulating water pump, 6-a preheating water inlet pipe, 7-a preheating water outlet pipe, 8-a heating water inlet pipe, 9-a heating water outlet pipe, 10-a heat exchange pipe, 11-a lower circulating water pump, 12-a fixing ring and 13-fins.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Example 1
Referring to fig. 1-2, the present embodiment provides an integrated three-dimensional tube air preheater, which includes an air inlet duct 1, a flue gas duct 2, a blower 3 and a heat exchange mechanism; the air blower 3 for blowing air is arranged at an air inlet of the air inlet pipeline 1, and an air outlet of the air inlet pipeline 1 is communicated with a boiler; and a heat exchange mechanism for transferring heat in the flue gas pipeline 2 into the air inlet pipeline 1 is arranged between the flue gas pipeline 2 at the tail part of the boiler and the air inlet pipeline 1.
The heat exchange mechanism comprises an upper circulating water pump 5, a preheating water inlet pipe 6, a preheating water outlet pipe 7, a heating water inlet pipe 8, a heating water outlet pipe 9 and a heat exchange pipe 10; heat exchange tubes 10 are fixed in the air inlet pipeline 1 and the flue gas pipeline 2 through brackets; the upper end and the lower end of a heat exchange tube 10 positioned in the gas inlet pipeline 1 are respectively connected with a preheating water inlet pipe 6 and a preheating water outlet pipe 7, and the upper end and the lower end of the heat exchange tube 10 positioned in the flue gas pipeline 2 are respectively connected with a heating water outlet pipe 9 and a heating water inlet pipe 8; the preheating water inlet pipe 6 and the preheating water outlet pipe 7 are respectively fixed on two sides of the upper circulating water pump 5, and the heating water outlet pipe 9 is connected with the heating water inlet pipe 8; part of water is injected into the heat exchange tube 10; so set up, when last circulating water pump 5 during operation, the water that drives two heat exchange tubes 10 is through preheating inlet tube 6, preheat outlet pipe 7, heat inlet tube 8 and heat outlet pipe 9 circulation flow, thereby can make the heat exchange tube 10 who is located flue gas pipeline 2 absorb heat, the water heat absorption in the heat exchange tube 10 of flue gas pipeline 2 becomes high temperature vapor, and flow in the heat exchange tube 10 of admission line 1 through the effect of last circulating water pump 5, the high temperature vapor in the heat exchange tube 10 of admission line 1 is absorbed by external air this moment, thereby become liquid water, the air that is bloated by air-blower 3 in the admission line 1 is heated, thereby the air temperature after the heating reaches the predetermined value, and in the boiler is blown into.
In order to improve the heat exchange efficiency, the shape of the heat exchange tube 10 is not limited, in this embodiment, preferably, the heat exchange tube 10 is formed by arranging a plurality of groups of coiled tubes, and the plurality of groups of coiled tubes are arranged in a cross manner, so that the heat exchange area of the heat exchange tube 10 and the heat exchange area of air and flue gas can be increased, and the heat exchange efficiency is improved.
In order to further improve the heat exchange efficiency, the water outlet of the upper circulating water pump 5 is connected with the preheating water inlet pipe 6, and the water inlet is connected with the heating water outlet pipe 9, so that the hot water vapor inside the heat exchange pipe 10 in the air inlet pipeline 1 can move from top to bottom, and then forms convection with the air in the air inlet pipeline 1, and the heat exchange effect can be improved.
In order to improve the flowing efficiency of water flowing in the two heat exchange tubes 10, a lower circulating water pump 11 is arranged between the preheating water outlet pipe 7 and the heating water inlet pipe 8; the water inlet of the lower circulating water pump 11 is connected with the preheating water outlet pipe 7, and the water outlet of the lower circulating water pump is connected with the heating water inlet pipe 8.
In order to further improve the heat exchange efficiency, the flowing direction of the high-temperature flue gas in the flue gas pipeline 2 is from top to bottom, and the high-temperature flue gas is arranged to form convection with the water in the heat exchange pipe 10 of the flue gas pipeline 2, so that the water in the heat exchange pipe 10 can be gradually heated, and the heat absorption efficiency can be improved.
In order to further improve the heat exchange efficiency, the heat exchange tube 10 is made of copper, so that the heat conductivity of copper is better, and the heat exchange performance is better.
The working principle of the embodiment is as follows: when the upper circulating water pump 5 works, water in the two heat exchange tubes 10 is driven to circularly flow through the preheating water inlet tube 6, the preheating water outlet tube 7, the heating water inlet tube 8 and the heating water outlet tube 9, so that the heat exchange tubes 10 in the flue gas pipeline 2 absorb heat, the water in the heat exchange tubes 10 of the flue gas pipeline 2 absorbs heat to become high-temperature water vapor, the high-temperature water vapor flows into the heat exchange tubes 10 of the air inlet pipeline 1 under the action of the upper circulating water pump 5, the high-temperature water vapor in the heat exchange tubes 10 of the air inlet pipeline 1 is absorbed by outside air at the moment to become liquid water, the air blown into the air inlet pipeline 1 by the air blower 3 is heated, and the heated air temperature reaches a preset value and is blown into a boiler. The heat exchange tube 10 is formed by arranging a plurality of groups of coiled tubes, and the plurality of groups of coiled tubes are arranged in a crossed manner, so that the heat exchange area between the heat exchange tube 10 and air and flue gas can be increased, and the heat exchange efficiency is improved. The hot water vapor inside the heat exchange tube 10 in the air inlet tube 1 moves from top to bottom, so that the hot water vapor forms convection with the air in the air inlet tube 1, the flowing direction of the high-temperature flue gas inside the flue gas tube 2 is from top to bottom, and the hot water vapor forms convection with the water in the heat exchange tube 10 of the flue gas tube 2, so that the water inside the heat exchange tube 10 can be gradually heated, the heat absorption efficiency can be improved, and the heat exchange efficiency can be improved. And the flue gas does not pass through the inside of the heat exchange tube 10, so that the heat exchange tube 10 is not blocked.
Example 2
Referring to fig. 3, the embodiment is further improved on the basis of embodiment 1, and the improvement is as follows: in order to further improve the heat exchange efficiency, heat exchange fins for further increasing the heat exchange efficiency are fixed on the two heat exchange tubes 10; the heat exchange fins comprise a fixed ring 12 and fins 13; the fixing ring 12 is attached and fixed on the heat exchange tube 10, and a plurality of fins 13 for increasing the heat exchange area are symmetrically arranged on the outer side of the fixing ring.
The material for manufacturing the heat exchange fin is not limited, and in this embodiment, preferably, the material for manufacturing the heat exchange fin is copper.
In order to prevent the water inlet pipe 6, the water outlet pipe 7, the water inlet pipe 8 and the water outlet pipe 9 from being preheated for heat dissipation, the materials for preheating the water inlet pipe 6, the water outlet pipe 7, the water inlet pipe 8 and the water outlet pipe 9 are made of high-temperature-resistant heat-insulating materials.
It should be noted that, as is obvious to a person skilled in the art, the invention is not limited to details of the above-described exemplary embodiments, but can be embodied in other specific forms without departing from the spirit or essential characteristics thereof.
Claims (10)
1. An integrated three-dimensional pipe air preheater is characterized by comprising an air inlet pipeline (1), a flue gas pipeline (2), a blower (3) and a heat exchange mechanism; the air blower (3) for blowing air is arranged at an air inlet of the air inlet pipeline (1), and an air outlet of the air inlet pipeline (1) is communicated with a boiler; and a heat exchange mechanism used for transferring heat in the flue gas pipeline (2) into the air inlet pipeline (1) is arranged between the flue gas pipeline (2) at the tail part of the boiler and the air inlet pipeline (1).
2. The integrated three-dimensional pipe air preheater according to claim 1, wherein the heat exchange mechanism comprises an upper circulating water pump (5), a preheating water inlet pipe (6), a preheating water outlet pipe (7), a heating water inlet pipe (8), a heating water outlet pipe (9) and a heat exchange pipe (10); heat exchange tubes (10) are fixed in the air inlet pipeline (1) and the flue gas pipeline (2) through brackets; the upper end and the lower end of a heat exchange pipe (10) positioned in the air inlet pipeline (1) are respectively connected with a preheating water inlet pipe (6) and a preheating water outlet pipe (7), and the upper end and the lower end of the heat exchange pipe (10) positioned in the flue gas pipeline (2) are respectively connected with a heating water outlet pipe (9) and a heating water inlet pipe (8); the preheating water inlet pipe (6) and the preheating water outlet pipe (7) are respectively fixed on two sides of the upper circulating water pump (5), and the heating water outlet pipe (9) is connected with the heating water inlet pipe (8); and part of water is injected into the heat exchange tube (10).
3. An integrated three-dimensional tube air preheater according to claim 2, wherein the heat exchange tubes (10) are comprised of an arrangement of a plurality of sets of serpentine tubes, and the plurality of sets of serpentine tubes are arranged in a cross arrangement.
4. The integrated three-dimensional pipe air preheater according to claim 2, wherein the water outlet of the upper circulating water pump (5) is connected to the preheating water inlet pipe (6), and the water inlet is connected to the heating water outlet pipe (9).
5. The integrated three-dimensional pipe air preheater according to claim 2, wherein a lower circulating water pump (11) is arranged between the preheating water outlet pipe (7) and the heating water inlet pipe (8); the water inlet of the lower circulating water pump (11) is connected with the preheating water outlet pipe (7), and the water outlet is connected with the heating water inlet pipe (8).
6. The integrated three-dimensional tube air preheater according to claim 2, wherein the flow direction of the high-temperature flue gas inside the flue gas duct (2) is from top to bottom.
7. An integrated three-dimensional tube air preheater according to claim 3, wherein the material of which the heat exchange tubes (10) are made is copper.
8. An integrated three-dimensional tube air preheater according to claim 7, wherein heat exchange fins for further increasing heat exchange efficiency are fixed to both of the heat exchange tubes (10); the heat exchange fins comprise fixing rings (12) and fins (13); the fixing ring (12) is attached and fixed on the heat exchange tube (10), and a plurality of fins (13) used for increasing the heat exchange area are symmetrically arranged on the outer side of the fixing ring.
9. An integrated three-dimensional tube air preheater as recited in claim 8 wherein said heat exchange fins are made of copper.
10. The integrated three-dimensional pipe air preheater according to claim 2, wherein the materials of the preheating water inlet pipe (6), the preheating water outlet pipe (7), the heating water inlet pipe (8) and the heating water outlet pipe (9) are high temperature resistant heat insulating materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020545358.3U CN212339297U (en) | 2020-04-14 | 2020-04-14 | Integrated three-dimensional pipe air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020545358.3U CN212339297U (en) | 2020-04-14 | 2020-04-14 | Integrated three-dimensional pipe air preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212339297U true CN212339297U (en) | 2021-01-12 |
Family
ID=74070639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020545358.3U Active CN212339297U (en) | 2020-04-14 | 2020-04-14 | Integrated three-dimensional pipe air preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212339297U (en) |
-
2020
- 2020-04-14 CN CN202020545358.3U patent/CN212339297U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107388852B (en) | A kind of gas gas high-temperature heat-exchanging | |
| JP2009519431A (en) | Condenser boiler heat exchanger for heating and hot water supply | |
| CN102901221A (en) | Forced finned straight pipe condensation heat-supply heat exchanger | |
| CN201463276U (en) | Finned diaphragm wall condensation type vacuum boiler | |
| CN109855457A (en) | Solid heat reservoir with superheated steam heat-exchanger rig | |
| CN1252428C (en) | Heat exchanger structure for condensating gas-fired boiler | |
| CN106369805A (en) | Condensing gas water heater and waste heat recovery method | |
| CN212339297U (en) | Integrated three-dimensional pipe air preheater | |
| CN206803498U (en) | Condensing secondary heat exchanger | |
| CN111380071A (en) | Integrated three-dimensional pipe air preheater | |
| CN104697170A (en) | Biomass double square coil pipe heat conduction oil furnace | |
| CN201163156Y (en) | Combined high temperature air preheater | |
| CN201028494Y (en) | Environment-friendly energy-saving boiler group | |
| CN201251278Y (en) | Wet-back gas-fired hot water modular cast iron boiler | |
| CN208349870U (en) | Cogeneration of heat and power air heat-exchange system | |
| JP5811450B2 (en) | Heating medium boiler | |
| CN207716659U (en) | Vertical condensation hot-water boiler | |
| CN106369825A (en) | Gas water heater and waste heat recovery method | |
| CN211424352U (en) | Heat exchange loop structure of steam boiler | |
| CN213421462U (en) | Heat exchange structure for water heating equipment | |
| CN109425116A (en) | A kind of heat exchange structure and gas heater | |
| CN213021095U (en) | Flue gas condensation energy-saving device | |
| CN103868045B (en) | Mobile spiral square membrane wall oil field steam generator | |
| CN2453328Y (en) | Horizontal tubular type coal hot-blast furnace | |
| CN220119900U (en) | Shuttle type heat exchanger for kiln |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |