CN203940459U - A kind of high-temperature air preheater heat shield - Google Patents
A kind of high-temperature air preheater heat shield Download PDFInfo
- Publication number
- CN203940459U CN203940459U CN201420398713.3U CN201420398713U CN203940459U CN 203940459 U CN203940459 U CN 203940459U CN 201420398713 U CN201420398713 U CN 201420398713U CN 203940459 U CN203940459 U CN 203940459U
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- China
- Prior art keywords
- main cylinder
- insulation layer
- thermal insulation
- interior main
- heat shield
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- 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
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Abstract
The utility model discloses a kind of high-temperature air preheater heat shield, it comprises outer main cylinder (2), interior main cylinder (3), thermal insulation layer A(1) and supervisor plate (5), supervisor's plate (5) top is provided with outer main cylinder (2), interior main cylinder (3) and thermal insulation layer A(1), thermal insulation layer A(1) be cast on the lateral wall of interior main cylinder (3), and interior main cylinder (3) and thermal insulation layer A(1) be positioned at outer main cylinder (2) inside, interior main cylinder (3) inside, lower end is connected with a cover plate (6), in the cavity forming between cover plate (6) and supervisor's plate (5), be provided with thermal insulation layer B(7).The beneficial effects of the utility model are: reduced the loss of high temperature air heat energy, the cooling effect of cold air is improved; Heat shield deadens most of heat in the chamber of interior main cylinder, the damage of having avoided outer main cylinder and housing to cause because of excess Temperature, thereby the service life of having improved further preheater.
Description
Technical field
The utility model relates to heat shield, particularly a kind of high-temperature air preheater heat shield.
Background technology
Shell-and-tube air preheater is a kind of important energy-saving equipment, and the afterheat energy-saving that has been widely used in the industries such as chemical industry, iron and steel, generating, carbon black is at present recycled, and according to the difference of every profession and trade instructions for use, maximum operation (service) temperature can reach 1100 ℃ of left and right.And heat exchanger tube, tube sheet and housing etc. are as the main element of shell-and-tube air preheater, selecting of its material played vital impact to the use of equipment, but the heatproof limitation due to existing heat-resisting steel material, be difficult to guarantee in the situation that long term high temperature moves, the use safety of equipment, life-span etc. are unaffected, have larger application risk, and use expensive high-temperature alloy material to make, greatly increase again the manufacturing cost of equipment, increased operating cost.
And existing shell-and-tube air preheater, preheater lower end, the temperature of high-temperature gas is higher, thereby the housing of preheater is had relatively high expectations, improved the material cost of equipment, and the logical heat transfer of the heat energy of preheater lower end in atmosphere, makes the loss of heat energy larger thermal energy transfer, has reduced further the heat transfer effect of cold air.
Utility model content
The purpose of this utility model is to overcome the shortcoming of prior art, provides a kind of long service life, heat exchange than high and energy-conservation high-temperature air preheater heat shield.
The purpose of this utility model is achieved through the following technical solutions: a kind of high-temperature air preheater heat shield, it comprises outer main cylinder, interior main cylinder, thermal insulation layer A and supervisor's plate, described supervisor's plate top is provided with outer main cylinder, interior main cylinder and thermal insulation layer A, described thermal insulation layer A is cast on the lateral wall of interior main cylinder, and it is inner that interior main cylinder and thermal insulation layer A are positioned at outer main cylinder, described inside, interior main cylinder lower end is connected with a cover plate, in the cavity forming, is provided with thermal insulation layer B between cover plate and supervisor's plate.
On described outer main cylinder sidewall, offer the air outlet slit being communicated with interior main cylinder.
Described interior main cylinder upper end is connected with the housing of preheater.
On the madial wall of described interior main cylinder, be radially provided with a plurality of deflection plates.
Described interior main cylinder inside is penetrated with many heat exchanger tubes.
Described thermal insulation layer A and thermal insulation layer B are lightening casting material or heat insulation fiber felt.
The utlity model has following advantage: heat shield of the present utility model, avoided producing anti-heat transfer process between cold air and preheated high temperature air, the temperature of high temperature air is reduced, and then reduced the loss of high temperature air heat energy, improved the cooling effect of cold air, make further heat energy be fully used, saved energy; Heat shield deadens heat energy in the chamber of interior main cylinder, and the suffered temperature of outer main cylinder is lower, the service life of having improved outer main cylinder, thus outer main cylinder has reduced the requirement of outer main cylinder to material, has further reduced equipment cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure, 1-thermal insulation layer A, the outer main cylinder of 2-, main cylinder in 3-, 4-heat exchanger tube, 5-is responsible for plate, 6-cover plate, 7-thermal insulation layer B.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described, protection domain of the present utility model is not limited to the following stated:
As shown in Figure 1, it comprises outer main cylinder 2, interior main cylinder 3, thermal insulation layer A1 and supervisor's plate 5, described supervisor's plate 5 tops are provided with outer main cylinder 2, interior main cylinder 3 and thermal insulation layer A1, described thermal insulation layer A1 is cast on the lateral wall of interior main cylinder 3, and interior main cylinder 3 and thermal insulation layer A1 are positioned at outer main cylinder 2 inside, described interior main cylinder 3 inside, lower end are connected with a cover plate 6, in the cavity forming, are provided with thermal insulation layer B7 between cover plate 6 and supervisor's plate 5.In the present embodiment, thermal insulation layer A1 and thermal insulation layer B7 all adopt lightening casting material or heat insulation fiber felt, and lightening casting material or heat insulation fiber felt bulk density are little, and thermal conductivity factor is low, can alleviate preheater deadweight, and good heat insulating, save the energy and long service life.
In the present embodiment, on described outer main cylinder 2 sidewalls, offer the air outlet slit being communicated with interior main cylinder 3, preheating air later flows into subsequent processing from air outlet slit.
In the present embodiment, interior main cylinder 3 upper ends are connected with the housing of preheater, and its connected mode is for being welded and fixed or adopting flexible slide plate to connect, in an embodiment, what preferentially adopt is that flexible slide plate connects, and the whole height of its adjustable preheater, plays the effect of internal main cylinder compensation.For improving further the pre-thermal efficiency of preheater, on the madial wall of main cylinder 3, be radially provided with a plurality of deflection plates.
In the present embodiment, high temperature heat source derives from the high-temperature flue gas in heat exchanger tube 4, preferential, and interior main cylinder 3 inside are penetrated with many heat exchanger tubes 4, and heat exchanger tube 4 is connected with smoke inlet.
The course of work of the present utility model is as follows: the flue gas with high temperature enters preheater by heat exchanger tube 4, high-temperature gas in heat exchanger tube 4 by tube wall by thermal energy transfer in interior main cylinder chamber, thermal insulation layer A and thermal insulation layer B have intercepted the loss of heat energy, and then make the suffered temperature of outer main cylinder lower, thereby reduced the requirement of outer bamboo drum to material, saved equipment cost, and after heat energy deadens, avoided the heat exchange between cold air and high temperature air, make interior main cylinder internal temperature comparatively constant, and then the cooling effect of cold air is improved, make further heat energy be fully used, saved energy.
Claims (5)
1. a high-temperature air preheater heat shield, it is characterized in that: it comprises outer main cylinder (2), interior main cylinder (3), thermal insulation layer A(1) and supervisor plate (5), described supervisor's plate (5) top is provided with outer main cylinder (2), interior main cylinder (3) and thermal insulation layer A(1), described thermal insulation layer A(1) be cast on the lateral wall of interior main cylinder (3), and interior main cylinder (3) and thermal insulation layer A(1) be positioned at outer main cylinder (2) inside, described interior main cylinder (3) inside, lower end is connected with a cover plate (6), in the cavity forming between cover plate (6) and supervisor's plate (5), be provided with thermal insulation layer B(7).
2. a kind of high-temperature air preheater heat shield according to claim 1, is characterized in that: on described outer main cylinder (2) sidewall, offer the air outlet slit being communicated with interior main cylinder (3).
3. a kind of high-temperature air preheater heat shield according to claim 1, is characterized in that: described interior main cylinder (3) upper end is connected with the housing of preheater.
4. a kind of high-temperature air preheater heat shield according to claim 1, is characterized in that: on the madial wall of described interior main cylinder (3), be radially provided with a plurality of deflection plates.
5. a kind of high-temperature air preheater heat shield according to claim 1, is characterized in that: described interior main cylinder (3) inside is penetrated with many heat exchanger tubes (4)
A kind of high-temperature air preheater heat shield according to claim 1, is characterized in that: described thermal insulation layer A(1) and thermal insulation layer B(7) be lightening casting material or heat insulation fiber felt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420398713.3U CN203940459U (en) | 2014-07-18 | 2014-07-18 | A kind of high-temperature air preheater heat shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420398713.3U CN203940459U (en) | 2014-07-18 | 2014-07-18 | A kind of high-temperature air preheater heat shield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203940459U true CN203940459U (en) | 2014-11-12 |
Family
ID=51859772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420398713.3U Expired - Fee Related CN203940459U (en) | 2014-07-18 | 2014-07-18 | A kind of high-temperature air preheater heat shield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203940459U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542116A (en) * | 2019-08-20 | 2019-12-06 | 青岛德固特节能装备股份有限公司 | Heat preservation structure in high temperature section of shell and tube air heater |
| CN112555894A (en) * | 2021-02-02 | 2021-03-26 | 南京培克电站设备有限公司 | Corrosion-resistant air preheater based on castable pore plate and preparation method thereof |
-
2014
- 2014-07-18 CN CN201420398713.3U patent/CN203940459U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542116A (en) * | 2019-08-20 | 2019-12-06 | 青岛德固特节能装备股份有限公司 | Heat preservation structure in high temperature section of shell and tube air heater |
| CN110542116B (en) * | 2019-08-20 | 2024-06-21 | 青岛德固特节能装备股份有限公司 | Heat preservation structure in shell and tube air heater high temperature section |
| CN112555894A (en) * | 2021-02-02 | 2021-03-26 | 南京培克电站设备有限公司 | Corrosion-resistant air preheater based on castable pore plate and preparation method thereof |
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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: 20141112 Termination date: 20170718 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |