CN203203431U - Integrated hot air heat exchanger in series connection - Google Patents
Integrated hot air heat exchanger in series connection Download PDFInfo
- Publication number
- CN203203431U CN203203431U CN 201320019116 CN201320019116U CN203203431U CN 203203431 U CN203203431 U CN 203203431U CN 201320019116 CN201320019116 CN 201320019116 CN 201320019116 U CN201320019116 U CN 201320019116U CN 203203431 U CN203203431 U CN 203203431U
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- CN
- China
- Prior art keywords
- heat exchanger
- tube side
- series connection
- hot air
- air heat
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- 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
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses an integrated hot air heat exchanger in series connection. The integrated hot air heat exchanger solves the problem that the existing hot air heat exchanger is ultra-long in heat exchanging tube length, high in manufacturing difficulty, high in production cost, poor in reliability and capable of causing bottleneck effect easily. The technical scheme is that the integrated hot air heat exchanger in series connection comprises a casing, a shell side and a tube side, wherein the tube side is formed by sequentially connecting a front section tube side, a middle tube box and a rear section tube side sequentially. The integrated hot air heat exchanger in series connection is simple in structure, low in device investment cost, high in reliability, low in manufacturing difficulty and convenient to overhaul.
Description
Technical field
The utility model relates to a kind of heat transmission equipment, specifically a kind of hot gas gas heat exchanger.
Background technology
Be the significant process of ammonia synthesis technology by ammonia convertor exhaust gas preheating inlet tower gas, utilize exhaust gas that inlet tower gas is preheated to the temperature that synthetic reaction needs by gas-gas heat exchanger, exhaust gas self cooling simultaneously.
The existing apparatus ability is horizontal fixed tube sheet type for the hot gas gas heat exchanger in the ammonia synthesis operation in 1630 tons of synthetic ammonia projects of daily output, formed by tube side and shell side, about 223 ℃～70 ℃ of shell side operating temperature, operating pressure is 15128kPa(a), about 51 ℃～200 ℃ of tube side operating temperature, operating pressure is 15512kPa(a).In order to reach the heat exchange effect of design, the heat exchanger tube overlength (reaching 20m) of tube side, the heat exchanger tube specification is Φ 14x2, shell journey material is Cr-Mo.Because tube side and shell side all are under the HTHP hydrogen-type corrosion environment, and the heat exchanger tube specification is little, length is long, cause following problem: (1) from buying and the manufacturing of heat exchange tube material, because this equipment heat exchanger tube specification is little, length is long, being prone to the pipe manufacture difficulty strengthens, problems such as pipe surfaces externally and internally defective increases, and dimensional discrepancy is bigger, and then cause the device fabrication difficulty to increase greatly; (2) in detection, maintenance, higher to the required precision of detecting instrument, increased the difficulty that detects; (3) from equipment operation conditions device from now on, because aspects such as raw material, detection are difficult to put in place, there is uncertain hidden danger, increased operation risk.More than all, make this equipment become a key point of restriction project construction progress.
Summary of the invention
This novel purpose is in order to solve the problems of the technologies described above, provide a kind of simple in structure, equipment investment cost is low, reliability is high, manufacture difficulty is low, the hot gas gas heat exchanger of the integral type of easy access series connection.
Technical scheme comprises housing and shell side and tube side, and described tube side is connected in sequence by leading portion tube side, middle bobbin carriage and back segment tube side.
Bobbin carriage is positioned at preceding 2/5 to 1/3 place of tube side in the middle of described.
The heat exchanger tube length overall of described tube side is 20 to 25 meters.
The front end of described housing is provided with tube side outlet and shell side import, and the rear end is provided with tube side import and shell side outlet.
The inventor improves existing hot gas gas heat exchanger, the tube side of the full tubular type that bobbin carriage will be pass by in the middle of utilizing is divided into leading portion tube side and back segment tube side, formation is similar to the form of two heat exchanger one series connection, manufacturing and maintenance difficulty, the reliability that so both can reduce heat exchanger tube are higher, also can select suitable manufactured materials according to the turnover temperature of front and rear sections tube side, further reduce equipment investment.Bobbin carriage is for being communicated with the cavity of front and rear sections tube side in the middle of described, and its design attitude on tube side can distribute according to two sections heat exchanger tube operating temperature of specific design and carry out appropriate design.Preferred described middle bobbin carriage is positioned at preceding 2/5 to 1/3 place of tube side.The heat exchanger tube length overall of described tube side is 20 to 25 meters.
Beneficial effect:
1. this novelly provides choice direction for ammonia synthesizer maximization equipment design, by integral type hot gas gas heat exchangers in series flow process, the employing rational temperature is distributed, by controlling suitable temperature, the key equipment of engineering constraint progress is decomposed simplification, since satisfy the integrated design requirement, avoided bottleneck effect again, reduce and make and detection difficulty, the contradiction that has solved design and made.
2. adopt integrated series connection design, can reduce cost of investment according to the operating temperature reasonable distribution upper-lower hierarchy material of front and rear sections tube side.
3. evade design and make hidden danger, it is long to reduce operation risk, operational reliability height, service life of equipment.
Description of drawings
Fig. 1 is the utility model structural representation.
Wherein, bobbin carriage, 3.3-back segment tube side, the import of 1.1-tube side, the outlet of 1.2-tube side, the import of 1.3-shell side, the outlet of 1.4-shell side in the middle of 1-housing, 2-shell side, 3-tube side, 3.1-leading portion tube side, the 3.2-.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further explained explanation:
With reference to Fig. 1, this novel hot gas heat exchanger comprises housing 1, shell side 2 and tube side 3, and the front end of housing 1 is provided with tube side outlet 1.2 and shell side import 1.3, and the rear end is provided with tube side import 1.1 and shell side outlet 1.4.Described tube side 3 is connected in sequence by leading portion tube side 3.1, middle bobbin carriage 3.2 and back segment tube side 3.3,20 to 25 meters of the heat exchanger tube length overalls of described tube side, and middle bobbin carriage 3.2 is positioned at preceding 2/5 to 1/3 place of tube side.Described leading portion tube side 3.1 and corresponding part shell side material are Cr-Mo, and described back segment tube side and corresponding part shell side material are CS, and the heat exchanger tube specification is Φ 14x2.
Technological process with ammonia convertor exhaust gas preheating inlet tower gas in the ammonia synthesis production technology is example below, explains that further this is novel.
It is 280 ℃ that the exhaust gas of ammonia convertor enters shell side 2(temperature by the shell side import 1.3 of this novel hot gas heat exchanger, operating pressure is 15128kPa(a), the hydrogen dividing potential drop is 9100 kPa (a) in the exhaust gas), heat exchange is discharged by shell side outlet 1.4 after being cooled to 70 ℃; Inlet tower gas is entered by tube side import 1.1 that (temperature is 51 ℃, operating pressure is 15512kPa(a), the hydrogen dividing potential drop is 11250 kPa (a) in the inlet tower gas, elder generation to back segment tube side 3.3 heat exchange are warming up to 199 ℃, enter the 3.1 continuation heat exchange of leading portion tube side again through middle bobbin carriage 3.2 then and be warming up to 257 ℃, discharge through tube side outlet 1.2, inlet tower gas and exhaust gas be the adverse current indirect heat exchange in heat exchanger again.
Claims (4)
1. the hot gas gas heat exchanger of an integral type series connection comprises housing, and shell side and tube side, it is characterized in that described tube side is connected in sequence by leading portion tube side, middle bobbin carriage and back segment tube side.
2. the hot gas gas heat exchanger of integral type series connection as claimed in claim 1 is characterized in that, described middle bobbin carriage is positioned at preceding 2/5 to 1/3 place of tube side.
3. the hot gas gas heat exchanger of integral type series connection as claimed in claim 1 or 2 is characterized in that the heat exchanger tube length overall of described tube side is 20 to 25 meters.
4. the hot gas gas heat exchanger of integral type series connection as claimed in claim 1 or 2 is characterized in that, the front end of described housing is provided with tube side outlet and shell side import, and the rear end is provided with tube side import and shell side outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320019116 CN203203431U (en) | 2013-01-15 | 2013-01-15 | Integrated hot air heat exchanger in series connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320019116 CN203203431U (en) | 2013-01-15 | 2013-01-15 | Integrated hot air heat exchanger in series connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203203431U true CN203203431U (en) | 2013-09-18 |
Family
ID=49147532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320019116 Expired - Lifetime CN203203431U (en) | 2013-01-15 | 2013-01-15 | Integrated hot air heat exchanger in series connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203203431U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323051A (en) * | 2016-11-15 | 2017-01-11 | 河南科技大学第附属医院 | Novel energy-saving heat exchanger |
| CN108592661A (en) * | 2018-06-29 | 2018-09-28 | 惠州市溶科环保科技有限公司 | A kind of Efficient high-temperature gas heat exchanger |
| CN109210968A (en) * | 2017-06-30 | 2019-01-15 | 中石化广州工程有限公司 | A kind of integral type vaporizer-superheater |
-
2013
- 2013-01-15 CN CN 201320019116 patent/CN203203431U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323051A (en) * | 2016-11-15 | 2017-01-11 | 河南科技大学第附属医院 | Novel energy-saving heat exchanger |
| CN109210968A (en) * | 2017-06-30 | 2019-01-15 | 中石化广州工程有限公司 | A kind of integral type vaporizer-superheater |
| CN108592661A (en) * | 2018-06-29 | 2018-09-28 | 惠州市溶科环保科技有限公司 | A kind of Efficient high-temperature gas heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130918 |
|
| CX01 | Expiry of patent term |