CN201827904U - Radiant tube heat exchanger - Google Patents
Radiant tube heat exchanger Download PDFInfo
- Publication number
- CN201827904U CN201827904U CN2010205631568U CN201020563156U CN201827904U CN 201827904 U CN201827904 U CN 201827904U CN 2010205631568 U CN2010205631568 U CN 2010205631568U CN 201020563156 U CN201020563156 U CN 201020563156U CN 201827904 U CN201827904 U CN 201827904U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- tube
- inner sleeve
- outer tube
- sheet
- 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 - Lifetime
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
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Air Supply (AREA)
Abstract
The utility model discloses a radiant tube heat exchanger comprising a heat exchanger fin and a heat exchange tube connected with the heat exchanger fin, wherein the heat exchange tube is provided with an inner sleeve, a middle layer flue gas tube and an outer sleeve from the inside to the outside; one end of the inner sleeve extends to a cavity of the heat exchanger fin, and the other end is communicated with a cavity of the outer sleeve; one end of the middle layer flue gas tube extends to an opening of the cavity of the heat exchanger fin, and the other end is communicated with an exhaust tube in the radial direction; and one end of the outer sleeve, close to the heat exchanger pin, is communicated with an air inlet tube. With the radiant tube heat exchanger, the flue gas discharge temperature can be effectively reduced, and the temperature of the outer surface of the heat exchanger is lower than 80 DEG C, therefore, extra heat insulating materials for heat insulation are not needed.
Description
Technical field:
The utility model relates to a kind of radiant tube heat exchanger, particularly a kind of combustion air preheating heat exchanger.
Background technology:
For the used for industrial furnace heat exchanger in the existing industrial combustion system, heat exchange efficiency is lower, and heat exchanger self surface temperature is higher, needs the extra heat-insulating material of laying.Because the volume in the furnace chamber is limit, heat exchange area is big inadequately, causes heat exchanger discharged flue gas temperature higher, and is bigger to the loss of heat.The crushing of heat exchanger is bigger, needs to select high-power combustion fan to overcome corresponding resistance, causes the power consumption of combustion fan to increase.
Summary of the invention:
For overcoming the defective of prior art, the purpose of this utility model is to provide a kind of radiant tube heat exchanger that is used for industrial furnace, it can increase heat exchange area, improve heat exchange efficiency, can be preheating to 550 degrees centigrade or higher to the normal temperature combustion air from room temperature, realize the energy-saving and cost-reducing of industrial furnace, reduce thermal pollution environment.
The utility model technical solution problem adopts following technical scheme:
The radiant tube heat exchanger, comprise Heat exchanger sheet and the heat exchanger tube that is connected with described Heat exchanger sheet, described heat exchanger tube from-inner-to-outer is provided with inner sleeve, middle level fume pipe and outer tube, and an end of described inner sleeve extends to the inner chamber of described Heat exchanger sheet, and the other end communicates with the inner chamber of outer tube; One end of described middle level fume pipe extends to the inner chamber oral area of described Heat exchanger sheet, and other end radial communication has blast pipe, in the end radial communication near the outer tube of Heat exchanger sheet blast pipe is arranged.
The middle part of described outer tube is provided with one section outer tube bellows; Be provided with the inner sleeve bellows at a end away from the inner sleeve of Heat exchanger sheet.
Described inner sleeve is provided with the inner sleeve reinforcement; Described middle level fume pipe is provided with brace rod.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
For the used for industrial furnace heat exchanger in the existing industrial combustion system, the utility model radiant tube heat exchanger can effectively reduce smog discharge temperature, and the hull-skin temperature of heat exchanger is lower than 80 degrees centigrade, and it is heat insulation not need extra insulation material.Blast pipe and blast pipe shift to install, prolonged the heat exchanger time of hot and cold gas, increased its heat exchange area, heat in the flue gas is passed to combustion-supporting normal temperature air by exchange heat, both reduced the temperature of fume emission, improved the temperature of combustion air again, heat exchange efficiency can improve 20% to 40%.The crushing of radiant tube heat exchanger is controlled in 18%, uses common combustion fan just can realize running well.
Description of drawings:
Fig. 1 is a structural representation of the present utility model, and arrow is depicted as the flow direction of combustion air among the figure; Figure 1A is the A portion enlarged drawing of Fig. 1.
Number in the figure: 1 Heat exchanger sheet, 3 inner sleeves, 4 adpting flanges, 5 middle level fume pipes, 6 inner sleeve reinforcements, 8 outer tube bellowss, 9 brace rods, 10 blast pipes, 11 inner sleeve bellowss, 12 outer tube end sockets, 15 blast pipes, 16 outer tubes.
Below pass through the specific embodiment, and the utility model is described in further detail in conjunction with the accompanying drawings.
The specific embodiment:
Embodiment: in conjunction with Fig. 1, the radiant tube heat exchanger of present embodiment, comprise cast-in-block wing needle recuperator sheet 1 and the heat exchanger tube that is connected with Heat exchanger sheet 1, the heat exchanger tube from-inner-to-outer is provided with inner sleeve 3, middle level fume pipe 5 and outer tube 16, one end of inner sleeve 3 extends to the inner chamber of Heat exchanger sheet 1, and the other end communicates with the inner chamber of outer tube 16; One end of middle level fume pipe 5 extends to the inner chamber oral area of Heat exchanger sheet 1, and other end radial communication has blast pipe 10, and radial communication has blast pipe 15 on an end of outer tube, and described blast pipe is near the Heat exchanger sheet place.
In order to absorb expansion and the contraction that variations in temperature causes, effectively prevent the stress that thermal shock brings.Be provided with one section outer tube bellows 8 at the middle part of outer tube 16; Be provided with inner sleeve bellows 11 at a end away from the inner sleeve of Heat exchanger sheet.Inner sleeve, outer tube are designed to straight tube, have reduced the resistance during air flows, and have reduced the crushing of combustion air effectively.
In order to strengthen the bonding strength of inner sleeve, middle level fume pipe, inner sleeve is provided with inner sleeve reinforcement 6; The middle level fume pipe is provided with brace rod 9.
In conjunction with Fig. 1, in the use, by adpting flange 4 this heat exchanger is connected on the furnace chamber wall, one end of Heat exchanger sheet 1 is suspended in the furnace chamber, the normal temperature combustion air enters the radiant tube heat exchanger from blast pipe 15, outermost layer (interlayer between outer tube 16 and the middle level fume pipe 5) on the heat exchanger right side flows, enter ventilation inner sleeve 3 after arriving outer tube end socket 12, pass the inner chamber that enters wing needle recuperator sheet 1 behind the adpting flange 4, after combustion air in Heat exchanger sheet and the abundant heat exchange of the high-temperature flue gas outside the Heat exchanger sheet, preheated air is got back to right-hand member after passing adpting flange 4 once more, discharges the radiant tube heat exchanger by the interlayer between middle level fume pipe 5 and the ventilation inner sleeve 7 by exhaust duct 10.The combustion air of this moment has been a high temperature air by original normal temperature state preheating, can send into and participate in burning in the burner.
The Heat exchanger sheet 1 of wing shape is monoblock cast, and flue gas is given the combustion air that flows through from its inner chamber exchange heat when its surface is flow through.Cast-in-block uses and guarantees that it can not produce leak source, and flue gas and combustion air just can not mix together yet, cause that heat exchange is not enough or local temperature is inhomogeneous.Adopting wing shape sheet is exactly to increase its heat exchange area under the situation that takies the furnace chamber inner volume in order to reduce.Heat exchange surface area had both further been strengthened in the multilayer sleeve design of adpting flange 4 right-hand members, had guaranteed that again the temperature of its outer surface is lower than 80 degrees centigrade.Be normal temperature cooling air in the interlayer of its outer tube 16 and flue gas middle sleeve 5, this design combines heat exchange and cooling dexterously.The design of outer tube bellows 8 and inner sleeve bellows 11 can absorb expansion and the contraction that variations in temperature causes, and effectively prevents the stress that thermal shock brings.Straight tube design has reduced the resistance during air flows, and has reduced the crushing of combustion air effectively.
Claims (3)
1. radiant tube heat exchanger, it is characterized in that comprising Heat exchanger sheet (1) and the heat exchanger tube that is connected with described Heat exchanger sheet, described heat exchanger tube from-inner-to-outer is provided with inner sleeve (3), middle level fume pipe (5) and outer tube (16), one end of described inner sleeve (3) extends to the inner chamber of described Heat exchanger sheet (1), and the other end communicates with the inner chamber of outer tube (16); One end of described middle level fume pipe (5) extends to the inner chamber oral area of described Heat exchanger sheet, and other end radial communication has blast pipe (10), in the end radial communication near the outer tube of Heat exchanger sheet blast pipe (15) is arranged.
2. radiant tube heat exchanger according to claim 1 is characterized in that the middle part of described outer tube is provided with one section outer tube bellows (8); Be provided with inner sleeve bellows (11) at a end away from the inner sleeve of Heat exchanger sheet.
3. radiant tube heat exchanger according to claim 1 is characterized in that described inner sleeve is provided with inner sleeve reinforcement (6); Described middle level fume pipe is provided with brace rod (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205631568U CN201827904U (en) | 2010-10-15 | 2010-10-15 | Radiant tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205631568U CN201827904U (en) | 2010-10-15 | 2010-10-15 | Radiant tube heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201827904U true CN201827904U (en) | 2011-05-11 |
Family
ID=43966434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205631568U Expired - Lifetime CN201827904U (en) | 2010-10-15 | 2010-10-15 | Radiant tube heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201827904U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963363A (en) * | 2010-10-15 | 2011-02-02 | 陆守祥 | Radiant tube heat exchanger |
-
2010
- 2010-10-15 CN CN2010205631568U patent/CN201827904U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963363A (en) * | 2010-10-15 | 2011-02-02 | 陆守祥 | Radiant tube heat exchanger |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101963363B (en) | Radiant tube heat exchanger | |
| CN102132947B (en) | Heater for bulk curing barn | |
| CN104729081A (en) | Energy-saving type hot blast stove | |
| CN208620880U (en) | A kind of combined high-temperature heat exchanger | |
| CN103438563A (en) | Total encapsulation type gas water heater | |
| CN201827904U (en) | Radiant tube heat exchanger | |
| CN101650073B (en) | Baffled hot-blast stove | |
| CN108050693A (en) | fuel gas hot-blast stove | |
| CN105020703A (en) | Novel combustion device | |
| CN104633932A (en) | Heating medium furnace for long-distance-delivery crude oil pipeline | |
| CN210772785U (en) | Combined module type heat conduction oil boiler | |
| CN209877373U (en) | Multiple condensation structure of gas hanging stove and boiler | |
| CN100451479C (en) | Heating furnace | |
| CN207763252U (en) | fuel gas hot-blast stove | |
| CN207763253U (en) | Fuel gas hot-blast stove furnace structure | |
| CN207661987U (en) | A kind of double burner water cooling premix vacuum boiler | |
| CN206280959U (en) | A kind of heat accumulating type multitubular bundles radiant tube combustion device | |
| CN201028775Y (en) | Split type domestic burners for central heating | |
| CN201449007U (en) | A turn-back flow coal burning hot air furnace | |
| CN109812976B (en) | Multiple condensation structure of gas hanging stove and boiler | |
| CN216431784U (en) | Heat carrier heating furnace | |
| CN208042518U (en) | Double-furnace-body double fire coal organic biomass heat carrier furnace | |
| CN201935383U (en) | High-efficiency hot blast stove | |
| CN216013264U (en) | Energy-saving heat exchange device for liquid medium of fire-resistant test furnace | |
| CN108662774A (en) | A kind of field heating air heat engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110511 Effective date of abandoning: 20111207 |