CN203893218U - Negative-pressure air suction heat exchanger - Google Patents
Negative-pressure air suction heat exchanger Download PDFInfo
- Publication number
- CN203893218U CN203893218U CN201420287126.7U CN201420287126U CN203893218U CN 203893218 U CN203893218 U CN 203893218U CN 201420287126 U CN201420287126 U CN 201420287126U CN 203893218 U CN203893218 U CN 203893218U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- support
- inspiratory pressure
- exchanging tube
- negative inspiratory
- 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
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
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A negative-pressure air suction heat exchanger comprises a support (1), a lower exchange pipe (3), an upper exchange pipe (8), a smoke inlet (4), a smoke outlet (5), an air inlet (6) and a hot air outlet (7). The heat exchanger is characterized in that the smoke inlet (4) and the hot air outlet (7) are located in the same side of the support (1), the air inlet (6) and the smoke outlet (5) are located in the other side of the support (1), the upper exchange pipe (8) is located on the upper half portion of the support (1), the lower exchange pipe (3) is located on the lower half portion of the support (1), the air inlet (6) is connected with a uniform air chamber (10), and the outer side of the smoke outlet (5) is provided with an exhaust fan (12). The exhaust fan is arranged on the smoke outlet, so that dust discharge in the heat exchanger is facilitated.
Description
Technical field
The utility model relates to heat-exchange device field, is specially a kind of heat exchanger of negative inspiratory pressure.
Background technology
To be exactly flue gas in boiler back end ductwork will enter air preheat before the boiler heating surface to uniform temperature by inner fin with air preheater.For improving the heat exchange performance of boiler, low-energy-consumption falls.Generally referred to as air preheater.Be used for coal-fired power station boiler.Can be divided into two kinds of box type, swingings.Wherein, bobbin carriage preheater operation principle is comparatively simple, and flue gas is from bobbin carriage outer flow warp, and air passes through from bobbin carriage inside, by temperature difference different heat transfer, identical with the principle such as economizer, superheater.
Air preheater can be divided into heat-conducting and the large class of regenerative two by the heat transfer type of air preheater.The most frequently used in heat-conducting air preheater is tubular air preheater.Along with the raising of boiler parameter and the increase of capacity, the heating surface of tubular air preheater also increases, and this has brought difficulty to the layout of back-end surfaces.On the other hand, owing to containing dust in flue gas, in the time of afterbody, have bulk deposition.
Utility model content
The application's object is to provide a kind of heat exchanger of negative inspiratory pressure, to solve heat exchanger afterbody dust accretions, and the problem that wind-heat conductivity reduces.
In order to achieve the above object, the utility model is by the following technical solutions:
A kind of heat exchanger of negative inspiratory pressure, comprise support (1), bottom exchanging tube (3), top exchanging tube (8), smoke inlet (4), exhanst gas outlet (5), air intake (6) and hot air outlet (7), it is characterized in that: described smoke inlet (4) and hot air outlet (7) are positioned at the homonymy of support (1), described air intake (6) and exhanst gas outlet (5) are positioned at the opposite side of support (1), described top exchanging tube (8) is positioned at the first half of support (1), described bottom exchanging tube (3) is positioned at the latter half of support (1), described air intake (6) is connected with equal air compartment (10), described exhanst gas outlet (5) outside is provided with air exhauster (12).
Further, described top exchanging tube (8) is made up of stainless steel, and described bottom exchanging tube (3) is made by aluminium alloy.
Further, the relative aperture exhanst gas outlet (5) of described smoke inlet (4) is large.
Further, the relative aperture air intake (6) of described hot air outlet (7) is large.
Further, described hot air outlet (7) is 2:1 with the bore ratio of air intake (6).
Further, described support (1) bottom is provided with base (2), and base (2) is connected with ground by expansion bolt.
Further, the side of described support (1) is provided with panel (11), and the top of described support (1) is provided with top cover (9).
The utlity model has following advantage:
The utility model outlet flue is provided with air exhauster, be conducive to the dust emissions in heat exchanger, and the feature that heat-exchange tube conducts heat according to different phase flue gas adopts different materials to make, and has improved wind-heat conductivity, has overcome the problem that heat exchanger back-end surfaces need to expand.
Brief description of the drawings
Fig. 1 is the structural representation of the heat exchanger of negative inspiratory pressure;
Fig. 2 is the left side structural representation of the heat exchanger of negative inspiratory pressure;
Support 1; Base 2; Bottom exchanging tube 3; Smoke inlet 4; Exhanst gas outlet 5; Air intake 6; Hot air outlet 7; Top exchanging tube 8; Top cover 9; All air compartment 10; Panel 11; Air exhauster 12.
Detailed description of the invention
As shown in Figure 1, the heat exchanger of negative inspiratory pressure comprises support (1), base (2), bottom exchanging tube (3), top exchanging tube (8), smoke inlet (4), exhanst gas outlet (5), air intake (6) and hot air outlet (7), its medium-height trestle (1) plays a part to support the heat exchanger of negative inspiratory pressure, be provided with smoke inlet (4) on the top of the heat exchanger of negative inspiratory pressure, be provided with exhanst gas outlet (5) at its symmetrical opposite side, because flue gas is by after the heat exchanger of negative inspiratory pressure, gas is because temperature declines, volume reduces, therefore, the bore of smoke inlet (4) is greater than the bore of exhanst gas outlet (5), air intake (6) and exhanst gas outlet (5) are in homonymy, be positioned at the latter half of the heat exchanger of negative inspiratory pressure, air enters into equal air compartment (10) after by air intake (6), flow through bottom exchanging tube (3) to top exchanging tube (8) again, finally discharge outside the heat exchanger of negative inspiratory pressure by hot air outlet (7), due to air temperature rise after the heat exchanger of negative inspiratory pressure, volume increases, therefore, it is large that the relative aperture air intake (6) of hot air outlet (7) is wanted, ratio is advisable with 2:1.Be located at air exhauster (12) in the outside of exhanst gas outlet (5), normally in service when boiler, ensure suitably high combustion chamber draft, improve afterbody dust stratification.
Be provided with top cover (9) at the top of support (1), can be used for the working condition of the heat exchanger of cleaning and detection negative inspiratory pressure, on the other hand, because the heat exchanger of negative inspiratory pressure can produce vibration in the course of the work, make pipeline connect in order to reduce vibration equipment loosening, therefore, be provided with base (2) in the bottom of support (1), base (2) by the fastening installation of expansion bolt on the ground.
The top exchanging tube (8) that is positioned at support (1) top adopts stainless steel as heat exchange material, the bottom exchanging tube (3) of its underpart adopts the aluminum alloy materials of high thermal conductivity, due to the flue gas top exchanging tube (8) of first flowing through, there is good wearability, just section high temperature but have compared with severe corrosive of flue gas, select stainless steel not easy to wear on the one hand as the heat exchange material of top exchanging tube (8), the first section of flue gas can be passed to air by more heat on the other hand, bottom exchanging tube (3) aluminium alloy is because flue gas needs better to pass material at afterbody, the corrosivity of flue gas declines simultaneously, therefore, do not need to increase tail area and can reach equally good biography effect.
As shown in Figure 2, be provided with panel (11) in the side of the heat exchanger of negative inspiratory pressure, thereby make globality, the better tightness of the heat exchanger of negative inspiratory pressure.
Claims (7)
1. the heat exchanger of a negative inspiratory pressure, comprise support (1), bottom exchanging tube (3), top exchanging tube (8), smoke inlet (4), exhanst gas outlet (5), air intake (6) and hot air outlet (7), it is characterized in that: described smoke inlet (4) and hot air outlet (7) are positioned at the homonymy of support (1), described air intake (6) and exhanst gas outlet (5) are positioned at the opposite side of support (1), described top exchanging tube (8) is positioned at the first half of support (1), described bottom exchanging tube (3) is positioned at the latter half of support (1), described air intake (6) is connected with equal air compartment (10), described exhanst gas outlet (5) outside is provided with air exhauster (12).
2. the heat exchanger of a kind of negative inspiratory pressure according to claim 1, is characterized in that: described top exchanging tube (8) is made up of stainless steel, and described bottom exchanging tube (3) is made by aluminium alloy.
3. the heat exchanger of a kind of negative inspiratory pressure according to claim 2, is characterized in that: the relative aperture exhanst gas outlet (5) of described smoke inlet (4) is large.
4. the heat exchanger of a kind of negative inspiratory pressure according to claim 3, is characterized in that: the relative aperture air intake (6) of described hot air outlet (7) is large.
5. the heat exchanger of a kind of negative inspiratory pressure according to claim 4, is characterized in that: described hot air outlet (7) is 2:1 with the bore ratio of air intake (6).
6. the heat exchanger of a kind of negative inspiratory pressure according to claim 5, is characterized in that: described support (1) bottom is provided with base (2), and base (2) is connected with ground by expansion bolt.
7. according to the heat exchanger of the arbitrary described a kind of negative inspiratory pressure of claim 1-6, it is characterized in that: the side of described support (1) is provided with panel (11), the top of described support (1) is provided with top cover (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420287126.7U CN203893218U (en) | 2014-06-03 | 2014-06-03 | Negative-pressure air suction heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420287126.7U CN203893218U (en) | 2014-06-03 | 2014-06-03 | Negative-pressure air suction heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203893218U true CN203893218U (en) | 2014-10-22 |
Family
ID=51719616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420287126.7U Expired - Fee Related CN203893218U (en) | 2014-06-03 | 2014-06-03 | Negative-pressure air suction heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203893218U (en) |
-
2014
- 2014-06-03 CN CN201420287126.7U patent/CN203893218U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110529872B (en) | Power station boiler waste heat utilization system based on inlet flue gas temperature communication control | |
| CN103344100A (en) | Pneumatic drier with tail gas waste heat recycling function | |
| CN201519762U (en) | Heat pipe type ladle baking device | |
| CN109959025B (en) | Intelligent communication control power station boiler waste heat utilization system | |
| CN202885607U (en) | H-shaped finned tube energy saver used for industrial and civil boilers | |
| CN110748912B (en) | Power station boiler waste heat utilization system based on smoke temperature communication control valve | |
| CN201875893U (en) | Heat exchange device of condensing gas water heater | |
| CN201028567Y (en) | Heat pipe type air preheater | |
| CN206001753U (en) | Fin tube type air-cooled condenser | |
| CN203893218U (en) | Negative-pressure air suction heat exchanger | |
| CN203837010U (en) | Graphite pipe type low-temperature air preheater | |
| CN216081103U (en) | Heat pipe type heat exchanger | |
| CN203893220U (en) | Heat exchanger with heater | |
| CN205878210U (en) | Biomass boiler energy -saving appliance | |
| CN203869016U (en) | Heat exchange device of spirally corrugated tube at tail of industrial boiler | |
| CN208187203U (en) | A kind of heat-exchanger rig with honeycomb | |
| CN108267032A (en) | A kind of heat-exchanger rig and system with honeycomb | |
| CN203534264U (en) | Air heat exchanger | |
| CN110748913B (en) | Power station boiler waste heat utilization system based on heat storage air temperature communication control | |
| CN203823735U (en) | Coal economizer | |
| CN110410816B (en) | Power station boiler waste heat utilization system capable of intelligently controlling fan operation in communication mode | |
| CN203442867U (en) | Air pre-heater provided with air purification device | |
| CN203893219U (en) | High-impermeability air preheater | |
| CN203404794U (en) | Air pre-heater with pressure stabilizing device | |
| CN204285506U (en) | With the heat exchanger except dew device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20150603 |
|
| EXPY | Termination of patent right or utility model |