CN201110727Y - High-temperature segment jacket cooling type protecting air pre-heating device - Google Patents
High-temperature segment jacket cooling type protecting air pre-heating device Download PDFInfo
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- CN201110727Y CN201110727Y CNU2007200815510U CN200720081551U CN201110727Y CN 201110727 Y CN201110727 Y CN 201110727Y CN U2007200815510 U CNU2007200815510 U CN U2007200815510U CN 200720081551 U CN200720081551 U CN 200720081551U CN 201110727 Y CN201110727 Y CN 201110727Y
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Abstract
The utility model discloses a high temperature section jacket cooling protective air preheater, the structure of which comprises a flue gas entrance section, a heat exchange section and a flue gas exit section, wherein the heat exchange section is composed of a cylinder, a row tube, a high temperature end lower tube plate and a low temperature end upper tube plate, the heat exchange section is equipped with a cool air inlet and a hot air outlet, the high temperature section of the heat exchange section is equipped with an inner cylinder and a support outer cylinder, and an annular cavity formed by the two cylinders is a cooling jacket for inputting cooling medium. The outer cylinder of the high temperature section jacket cooling protective air preheater can be processed and manufactured by employing materials with relatively low price, the wall thickness of the inner cylinder which is processed and produced by using high temperature heat-resistance alloy, the manufacturing cost of the whole equipment is largely reduced, compared with the preheater with same exit temperature of the prior art, and the whole rigidity of the equipment is ensured. The high temperature section jacket cooling protective air preheater can be used as a high temperature air preheater with exit temperature of more than 800 DEG C.
Description
Technical field:
The utility model relates to the high-temperature heat exchanger technology, more particularly, relates to a kind of heat exchanger with the high-temperature flue gas preheated air.
Background technology
Give birth in the process at oil oven method carbon black and petrochemical industry,, often will carry out preheating to air with flue gas in the operation of air-breathing participation reaction, so that can satisfy the requirement of production technology better, fully recycle the energy, reduce production costs, increase economic efficiency.Constantly soaring along with the anxiety of the energy and price, air preheater has become a lot of chemical industry production imperative equipment, and to the expection of energy recovery also more and more higher (outlet temperature high more good more, the big more economic benefit of bringing of output is good more).As in oil oven method production of carbon black industry, as energy recovery equipment,, can save energy and reduce the cost widely because of it though high-temperature air preheater does not have big influence to manufacturing technologies of carbon black, be the indispensable equipment of production of carbon black.The user is that energy-saving benefit will be higher than equipment manufacturing cost and technological operation cost sum widely in the condition of selecting for use high-temperature air preheater to consider, as, 900 ℃ the air preheater cost is too high and risk is too big, the user may select the air preheater of 650 ℃ or 800 ℃ for use, if 900 ℃ the relatively low and stable performance of preheater cost is selected 900 ℃ certainly for use.
The primary structure of air preheater comprises the waste gas inlet section, and by heat exchanging segment and flue gas outlet section that cylindrical shell, tubulation, temperature end lower perforated plate and low-temperature end upper perforated plate are formed, wherein the heat exchanging segment design has inlet of cold air and hot air outlet.The air preheating temperature of prior art is greater than 800 ℃ air preheater, with temperature greater than the contacted parts of 800 ℃ medium, its material all adopts expensive high temperature heat-resisting, as tube sheet, tubulation and cylindrical shell etc. are all by the high temperature heat-resisting processing and fabricating, in order to guarantee that whole equipment has enough intensity, stability, have to strengthen the cylindrical shell wall thickness as the cylindrical shell of stressed member, thereby consume a large amount of expensive high temperature heat-resistings, the cost of equipment is very high, and performance is stable inadequately, select for use the energy-saving benefit of high-temperature air preheater to reduce widely, make people have to abandon to select for use air preheating temperature greater than 800 ℃ air preheater, and select the lower air preheater of air preheating temperature for use, as outlet temperature the air preheater of 400 ℃ or 500 ℃ or 600 ℃.Along with the anxiety of the energy and constantly riseing of price, and the high-temperature air preheater of prior art making cost is too high, and people are more and more good to the expection of energy recovery, and very wishing has the people can design and produce the air preheater of low cost, high outlet temperature and stable performance to greatest extent.
Summary of the invention
Deficiency at the high-temperature air preheater existence that has skill now, the purpose of this utility model aims to provide a kind of high-temperature air preheater of new structure, to reduce the making cost of preheater greatly, satisfy the expection hope of people to energy recovery, reduce production costs.
Above-mentioned purpose of the present utility model can be achieved by the high temperature section jacket cooling type protection air preheater with following technical scheme.
The high temperature section jacket cooling type protection air preheater that the utility model provides; its structure comprises the waste gas inlet section; heat exchanging segment and the flue gas outlet section formed by cylindrical shell, tubulation, temperature end lower perforated plate and low-temperature end upper perforated plate; the heat exchanging segment design has inlet of cold air and hot air outlet; the high temperature section design of heat exchanging segment has inner barrel and supports outer cylinder body; the toroidal cavity that forms between two cylindrical shells is a cooling jacket, and design has the import and the outlet of cooling medium on the cooling jacket.
In technique scheme, the cooling medium in the cooling jacket can be water or air, air preferably, and cooling jacket is that structure is applicable to that cooling medium is the cooling jacket of air.When cooling medium was air, the cooling medium outlet on the cooling jacket preferably was designed to communicate with heated air flow channel, and the air in the cooling jacket becomes a heated air part, so that can recycle the energy better.
In technique scheme, also the design of temperature end lower perforated plate can there be the cooling cavity, feed cooling medium tube sheet is cooled off, design has the import and the outlet of cooling medium on the cooling cavity.The cooling medium of cooling tube sheet can be identical with the interior cooling medium that cools off inner barrel of chuck, also can be inequality, and preferably with a kind of cooling medium.When cooling medium was all air, the cooling medium outlet on the cooling cavity can communicate with the cooling medium inlet on the chuck.Cooling cavity on the temperature end lower perforated plate can be designed to two-layer, and the import of the cooling medium of its upper strata cooling cavity communicates with the cooling medium outlet of lower floor's cooling cavity.When the cooling medium of the cooling medium of cooling lower perforated plate and cooling inner barrel when identical, the cooling medium that the cooling medium inlet of upper strata cooling cavity and outlet can be respectively with cavity cools off in lower floor export and two cylindrical shells between cooling jacket on cooling medium inlet communicate.
The utility model has also been taked some other technical measures.
The utility model discloses air preheater, owing to set up the support outer cylinder body in preheater heat exchanging segment high temperature section, bear the weight of its upper side by it, the intensity of whole equipment and stability are given security by it, and outer cylinder body itself does not contact with high-temperature medium, operating ambient temperature is lower, can adopt the lower material processing and fabricating of price, and with the contacted inner barrel of high-temperature medium, because its effect is only used for the heated air of isolated sealing, and cool off by the cooling medium in the annular chuck between inside and outside cylindrical shell again, its operating ambient temperature also greatly reduces, therefore, and by the inner barrel of high temperature heat-resisting processing and fabricating, its wall thickness can reduce greatly, therefore, what the utility model was created sets up the support outer cylinder body in the heat exchanging segment high temperature section, by this ingenious structure to the inner barrel cooling of the cooling medium in the annular chuck between inside and outside cylindrical shell, greatly reduce the integral manufacturing cost of air preheater, the intensity of whole equipment is high with stability.Of the present utility model open, can satisfy the expection hope that people utilize energy recovery, can reduce the equipment manufacturing cost cost again, improve the on-road efficiency of production line.
Description of drawings
The sign object of each shown by reference numeral in the above-mentioned accompanying drawing is: 1 waste gas inlet section; 2 temperature end lower perforated plates; 3 heat exchanging segment high temperature section; 4 heat exchanging segment low-temperature zone; 5 low-temperature end upper perforated plates; 6 flue gas outlet sections; 7 lower perforated plates cooling cavity; 8 tubulations; 9 inner barrels; 10 support outer cylinder body; 11 insulation linings; 12 cooling jackets; 13 runner dividing plates; The outlet of 14 chuck cooling mediums.
The specific embodiment
Provide an embodiment of the present utility model below in conjunction with accompanying drawing, the utility model is further described by embodiment.But it needs to be noted; the specific embodiment of the present utility model is not limited to the described form of embodiment; the those skilled in the art is not paying creatively work; can go out other the specific embodiment according to content design of the present utility model, but such specific embodiment should still belong to protection domain of the present utility model.
Protect an embodiment of air preheater as the high temperature section jacket cooling type of the utility model announcement; its structure as shown in Figures 1 and 2; mainly, form by heat exchanging segment and flue gas outlet section 6 that cylindrical shell, tubulation 7, temperature end lower perforated plate 2 and low-temperature end upper perforated plate 5 are formed by waste gas inlet section 1.Temperature end lower perforated plate 2 has two-layer cavity by the tube sheet of the air cooling medium that feeds to its cooling for design, and the cooling medium inlet of upper strata cavity exports with the cooling medium of lower floor cavity and communicates.The heat exchanging segment design has inlet of cold air and hot air outlet, the high temperature section 3 of heat exchanging segment at inner barrel 9 peripheral hardwares of isolated sealing air in respect of supporting outer cylinder body 10, toroidal cavity between two cylindrical shells is the cooling jacket 12 that is used for bubbling air cooling inner barrel, the cooling medium inlet of cooling jacket communicates with the cooling medium outlet of temperature end lower perforated plate upper strata cavity, and the cooling medium outlet 14 of cooling jacket communicates with heated air flow channel in the heat exchanging segment low-temperature zone 4.High temperature section at heat exchanging segment, select the more cheap austenitic stainless steel processing and fabricating of price for use as the outer cylinder body of primary structure member, inner barrel as isolated sealing heat transferring medium air is selected the high temperature heat-resisting processing and fabricating for use, and rigidity and intensity that its thickness can satisfy the requirement of sealing heat transferring medium get final product.
The running of the high temperature section jacket cooling type protection air preheater that the utility model discloses: the high-temperature flue gas as heat medium enters waste gas inlet section 1 by inlet tube; in entrance, enter tubulation, discharge by flue gas outlet section 6 after the air heat exchange outside heat exchanging segment and tubulation by tubulation 7 imports as heat exchange element.Heated air enters heat exchanging segment by the import that is positioned on the heat exchanging segment low-temperature zone, along the flow passage that is formed in tube side by runner dividing plate 13, after flue gas heat exchange in the tubulation, discharges from the outlet on the heat exchanging segment high temperature section.Air as cooling medium is entered by the import that the high temperature section lower perforated plate cools off cavity, to entering the annular chuck between heat exchanging segment high temperature section inner barrel and the support outer cylinder body after the lower perforated plate cooling, inner barrel cooling back is entered in the runner of heat exchanging segment low-temperature zone heated air by JO 14, as being added part of air.
At the high-temperature air preheater more than 800 ℃, inner barrel is under the protection of cooling medium air as air exit temp for the high temperature section jacket cooling type protection air preheater that the utility model discloses, and normal working temperature is not more than 450 ℃.The cost of whole equipment reduces greatly than the preheater of the same outlet temperature of prior art, and the equipment integral rigidity is guaranteed.
The high temperature section chuck cooling protection structure that the utility model discloses except being used for high-temperature air preheater, also can be used for other high-temperature heat-exchangings, can obtain effect same.
Claims (7)
1, a kind of high temperature section jacket cooling type protection air preheater; comprise the waste gas inlet section; heat exchanging segment and the flue gas outlet section formed by cylindrical shell, tubulation, temperature end lower perforated plate and low-temperature end upper perforated plate; the heat exchanging segment design has inlet of cold air and hot air outlet; it is characterized in that inner barrel being arranged and supporting outer cylinder body in the high temperature section design of heat exchanging segment; the toroidal cavity that forms between two cylindrical shells is a cooling jacket, and design has the import and the outlet of cooling medium on the cooling jacket.
2, high temperature section jacket cooling type protection air preheater according to claim 1 is characterized in that said cooling jacket is that structure is applicable to that cooling medium is the cooling jacket of air.
3, high temperature section jacket cooling type protection air preheater according to claim 2 is characterized in that the cooling medium outlet on the cooling jacket communicates with heated air flow channel.
4, according to claim 1 or 2 or 3 described high temperature section jacket cooling type protection air preheaters, it is characterized in that the design of temperature end lower perforated plate has the cooling cavity, design has the import and the outlet of cooling medium on the cooling cavity.
5, according to claim 2 or 3 described high temperature section jacket cooling type protection air preheaters, it is characterized in that the design of temperature end lower perforated plate has the cooling cavity, the cooling medium outlet on the cooling cavity communicates with the cooling medium inlet on the cooling jacket.
6, high temperature section jacket cooling type according to claim 4 protection air preheater is characterized in that the design of temperature end lower perforated plate has two-layer cooling cavity, and the import of the cooling medium of upper strata cooling cavity exports with the cooling medium of lower floor cooling cavity and communicates.
7, high temperature section jacket cooling type protection air preheater according to claim 5; it is characterized in that the design of temperature end lower perforated plate has two-layer cooling cavity, the cooling medium inlet of upper strata cooling cavity cools off the cooling medium outlet of cavity with lower floor respectively with outlet and the cooling medium inlet on the cooling jacket between two cylindrical shells communicates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200815510U CN201110727Y (en) | 2007-10-19 | 2007-10-19 | High-temperature segment jacket cooling type protecting air pre-heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200815510U CN201110727Y (en) | 2007-10-19 | 2007-10-19 | High-temperature segment jacket cooling type protecting air pre-heating device |
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| Publication Number | Publication Date |
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| CN201110727Y true CN201110727Y (en) | 2008-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007200815510U Expired - Lifetime CN201110727Y (en) | 2007-10-19 | 2007-10-19 | High-temperature segment jacket cooling type protecting air pre-heating device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102698460A (en) * | 2012-05-31 | 2012-10-03 | 东营市冠森绝缘制品有限公司 | Condensation recoverer |
| CN109813098A (en) * | 2018-12-21 | 2019-05-28 | 王家琪 | A kind of light-hydrocarbon gas reverberatory furnace |
| CN110514037A (en) * | 2019-09-02 | 2019-11-29 | 青岛德固特节能装备股份有限公司 | A kind of tube-shell type high-temperature air preheater lower perforated plate cooling structure |
| 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 |
| CN114459276A (en) * | 2022-02-18 | 2022-05-10 | 杭州制氧机集团股份有限公司 | Connecting device between plate-fin heat exchanger and steel pipeline dissimilar metal |
-
2007
- 2007-10-19 CN CNU2007200815510U patent/CN201110727Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102698460A (en) * | 2012-05-31 | 2012-10-03 | 东营市冠森绝缘制品有限公司 | Condensation recoverer |
| CN109813098A (en) * | 2018-12-21 | 2019-05-28 | 王家琪 | A kind of light-hydrocarbon gas reverberatory furnace |
| 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 |
| CN110514037A (en) * | 2019-09-02 | 2019-11-29 | 青岛德固特节能装备股份有限公司 | A kind of tube-shell type high-temperature air preheater lower perforated plate cooling structure |
| CN114459276A (en) * | 2022-02-18 | 2022-05-10 | 杭州制氧机集团股份有限公司 | Connecting device between plate-fin heat exchanger and steel pipeline dissimilar metal |
| CN114459276B (en) * | 2022-02-18 | 2024-09-27 | 杭氧集团股份有限公司 | Device for connecting plate-fin heat exchanger and steel pipeline dissimilar metal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHENGDU CHENGFA KE'NENG POWER ENGINEERING CO., LTD Free format text: FORMER OWNER: CHENGDU ENGINE (GROUP) CO., LTD. Effective date: 20120405 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120405 Address after: Xindu town Shulong Avenue South of Xindu District of Chengdu city in Sichuan province 610067 No. 521 building 166 layer 1-2 Patentee after: CHENGDU CHENGFA SCIENCE & TECHNOLOGY POWER ENGINEERING CO., LTD. Address before: 610067 Shuangqiao, Chenghua District, Sichuan, Chengdu Patentee before: Chengdu Engine (Group) Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080903 |
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| CX01 | Expiry of patent term |