CN201129942Y - Carbon monoxide converter tube shell type main heat exchanger - Google Patents
Carbon monoxide converter tube shell type main heat exchanger Download PDFInfo
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- CN201129942Y CN201129942Y CNU2007200880172U CN200720088017U CN201129942Y CN 201129942 Y CN201129942 Y CN 201129942Y CN U2007200880172 U CNU2007200880172 U CN U2007200880172U CN 200720088017 U CN200720088017 U CN 200720088017U CN 201129942 Y CN201129942 Y CN 201129942Y
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Abstract
The utility model relates to a carbon monoxide transforming tube shell type main heat exchanger, which belongs to the heat exchanging devices in the chemical fertilizer industry. A semi-water gas inlet 7 and a steam inlet 13 are arranged on the lower portion of a barrel 1, a semi-water gas outlet 8 is arranged on the upper portion of the barrel 1, the inside of the barrel 1 is sealed into an upper segment shell side and a lower segment shell side through a lower segment pipe sheet 2 and an upper segment pope sheet 5, a shift gas inlet 9 is arranged on the upper segment shell side, a shift gas outlet 10 is arranged on the lower segment shell side, and a connecting pipe 11 which connects the upper segment shell side and the lower segment shell side is arranged outside the barrel 1. The design is rational, the structure is novel, and the volume is small. The heat exchanging efficiency is high, the running resistance is small, and the device cost is low. The fouling of the heat exchanger is little, the high temperature adaptability is good, the maintenance cost is low, the service life is long, and the economic benefit is very prominent. The heat exchanger is suitable for being used as a main heat exchanging device of a translating system device of after the productivity of chemical fertilizer is expanded and also can be used in other heat occasions with high efficiency.
Description
Technical field
The utility model relates to a kind of heat exchanger, relates in particular to the carbon monodixe conversion shell-and-tube main heat exchanger in a kind of fertilizer industry synthetic-ammonia transformation system.
Background technology
Heat exchanger is to make gas possess the heat transfer Thermal Equipment of certain reaction temperature and recovery system heat in the synthetic-ammonia transformation system.It has determined that largely can transformation system ordinary production.Little synthesis ammonia plant develops very fast in recent ten years, and single covering device ability develops into single cover ability and reaches and produce 240000 tons of synthetic ammonia per year by producing 3000 tons～5000 tons synthetic ammonia the former coming year.Many problems are also run in the expansion of device capability.The one transformation system device that packages should be with lower investment, makes the equipment energy long period safe operation in the transformation system, the more important thing is that simultaneously the maintenance system has lower system's running resistance.Have 6 heat transmission equipments in the common little synthetic-ammonia transformation system.Wherein main heat exchanger also must possess excellent corrosion resisting performance simultaneously except the heat exchange of satisfying low running resistance requires.Existing main heat exchanger is perishable.Many main heat exchangers, just bad because of seriously corroded with two, three months, need parking maintenance, expensive very big.In order to prolong the service life of main heat exchanger, traditional method is to add a pre-etching device and steam-water separator before main heat exchanger, this method makes the complex structure of main heat exchanger, volume increases, anticorrosion ability is still not ideal enough, and increased the running resistance and the equipment cost of transformation system, reduced heat transfer efficiency.
Summary of the invention
The purpose of this utility model is at the deficiencies in the prior art, proposes a kind of compact conformation, heat exchange efficiency height, the carbon monodixe conversion shell-and-tube main heat exchanger of long service life.
The purpose of this utility model realizes in the following manner: carbon monodixe conversion shell-and-tube main heat exchanger, cylindrical shell 1 is provided with the semiwater gas import, semiwater gas outlet and steam inlet, portion is provided with heat exchanger tube within it, semiwater gas import and steam inlet are arranged on the bottom of cylindrical shell, the semiwater gas outlet is arranged on the top of cylindrical shell, seal with the epimere tube sheet by the hypomere tube sheet in the cylindrical shell 1, following two sections shell sides, the epimere shell side is provided with the import of conversion gas, the hypomere shell side is provided with the outlet of conversion gas, has in the connection in the cylindrical shell outer setting, the tube connector of following two sections shell sides.
Hypomere tube sheet in the cylindrical shell described in the utility model and hypomere heat exchanger tube adopt stainless steel to make, and epimere tube sheet and epimere heat exchanger tube adopt carbon steel or steel alloy to make.
The utility model can also be respectively arranged with expansion joint at the epimere and the hypomere of cylindrical shell.
The utility model can also be provided with condensate draining pipe in the bottom of cylindrical shell.
The utility model can also be provided with the shell side drainpipe in the bottom of upper and lower two shell sides.
Tube connector described in the utility model adopts carbon steel or steel alloy to make.
Compared with prior art, the utlity model has following tangible advantage:
1. reasonable in design, novel structure, volume is little.Adopt shell-and-tube heat exchanger, cylindrical shell is two sections, and main heat exchanger, pre-etching device and three equipment of steam-water separator of transformation system are combined into an equipment, and volume reduces, the heat exchange efficiency height, and running resistance is little, and equipment cost is low.
2. long service life, good economy performance.The hypomere heat exchanger tube of cylindrical shell and hypomere tube sheet all adopt corrosion resistant plate to make, corrosion resistance and good, the epimere of cylindrical shell then can adopt inexpensive material making such as common seamless pipe, and maintenance cost is low, can be increased to the more than ten years in service life of heat exchanger, economic benefit is very remarkable.Be suitable for also can be used for other high efficient heat exchanging occasion as the enhance production capacities main heat transmission equipment of back transformation system device of little chemical fertilizer.
3. fouling of heat exchangers is few.Heat exchanger corrosion and scale problems have effectively been solved.Semiwater gas is after the condensation of cylindrical shell bottom, and its solid matter that carries is discharged with condensed water, has reduced scale formation, and the corrosion of heat exchanging device also is greatly improved.
4. the heat exchanger internal stress is even, and high-temperature adaptability is good.Upper and lower section at cylindrical shell is respectively arranged with expansion joint, to eliminate the stress that heat exchanger tube high temperature produces.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Among the figure: cylindrical shell 1, hypomere tube sheet 2, expansion joint 3, hypomere heat exchanger tube 4, epimere tube sheet 5, epimere heat exchanger tube 6, semiwater gas import 7, semiwater gas outlet 8, heating gas import 9, heating gas outlet 10, tube connector 11, condensate draining pipe 12,1 steam add inlet 3, shell side drainpipe 14.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Referring to Fig. 1, the cylindrical shell 1 of existing transformation system shell-and-tube main heat exchanger is provided with semiwater gas import 7, semiwater gas outlet 8 and steam inlet 13, and portion is provided with heat exchanger tube within it.The utility model merges into a single whole existing heat exchanger, pre-etching device and steam-water separator structure, its semiwater gas import 7 and steam inlet 13 are arranged on the bottom of cylindrical shell 1, semiwater gas outlet 8 is arranged on the top of cylindrical shell 1, seal into upper and lower two sections shell sides by two hypomere tube sheets 2 and two epimere tube sheets 5 in the cylindrical shell 1, the epimere shell side is provided with conversion gas import 9, the hypomere shell side is provided with conversion gas outlet 10, and the tube connector 11 that is communicated with upper and lower two sections shell sides is arranged in cylindrical shell 1 outer setting.Tube connector 11 can adopt carbon steel or steel alloy to make.
Steam adds inlet 13 from the steam of cylindrical shell 1 bottom and enters, semiwater gas enters from the bottom of cylindrical shell 1 from semiwater gas import 7, with vapor mixing, hypomere tube sheet 2 seals into mixed steam with the hypomere of cylindrical shell 1 can only be along the space that the heat exchanger tube tube side flows upward, gaseous mixture flow to the top of cylindrical shell 1 through hypomere heat exchanger tube 4, epimere heat exchanger tube 6, flows out from semiwater gas outlet 8 again.Be provided with condensate draining pipe 12 in the bottom of cylindrical shell 1, the condensed water in the cylindrical shell can be discharged.
Conversion gas enters the epimere shell side from heating gas import 9, operation downwards, and the tube connector 11 of flowing through enters the hypomere shell side, flows out from the heating gas outlet 10 on hypomere shell side top again.Shell side drainpipe 14 can be set, to make things convenient for the discharge of condensed water in the shell side in the bottom of upper and lower two shell sides.
Because mixed steam has stronger corrosiveness in condensation process, after having omitted the pre-etching device, adopt stainless steel to make hypomere tube sheet 2 in the cylindrical shell 1 and hypomere heat exchanger tube 4, to improve the decay resistance of heat exchanger.Mixed steam is minimum to the corrosion of the epimere tube side of cylindrical shell 1, so epimere tube sheet 5 and epimere heat exchanger tube 6 adopt carbon steels or steel alloy to make, and equipment cost is reduced.Hypomere heat exchanger tube 4 in the cylindrical shell 1 and epimere heat exchanger tube 6 distribute and are not quite similar, and reserve certain space in therefore can be between epimere shell side and hypomere shell side, so that mixed steam is mobile to epimere heat exchanger tube 6 in from hypomere heat exchanger tube 4.In order to eliminate the internal stress that cylindrical shell 1 is produced when the hot operation, can be respectively arranged with expansion joint 3 at the epimere and the hypomere of cylindrical shell 1, to adapt to the stress deformation that cylindrical shell 1 and heat exchanger tube high temperature produce.
In test, the hypomere tube sheet 2 of the utility model heat exchanger adopts 304 corrosion resistant plates, and hypomere heat exchanger tube 4 adopts 304 stainless steel seamless pipes, and epimere tube sheet 5 adopts the 16MnR steel plate.Epimere heat exchanger tube 6 is the seamless pipe of 20 steel, and upper and lower two sections shell sides connect with the tube connector 11 of an ear type, and tube connector 11 adopts 20 steel seamless pipes.Semiwater gas enters from semiwater gas import 7, by coming out from semiwater gas outlet 8 in the heat exchanger tube.Conversion gas enters the epimere shell side from heating gas import 9, enters the hypomere shell side by tube connector 11, comes out from heating gas outlet 10 again.After semiwater gas enters from the heat exchanger hypomere, mix with the saturated vapor that adds, partial condensation water is discharged from the condensate draining pipe 12 of bottom.Make in the entrained water of semiwater gas solid along with condensed water is discharged.Clean gas, effectively solved the corrosion and the scale problems of main heat exchanger.Compare with existing heat exchanger, its volume reduces 1/2-2/3, and equipment cost reduces 30-50%, and heat exchange efficiency improves 2-10%, and decay resistance significantly improves, and maintenance cost reduces about 30%, and can reach more than 15 years service life.
Claims (6)
1. carbon monodixe conversion shell-and-tube main heat exchanger, cylindrical shell (1) is provided with semiwater gas import (7), semiwater gas outlet (8) and steam inlet (13), portion is provided with heat exchanger tube within it, it is characterized in that: semiwater gas import (7) and steam inlet (13) are arranged on the bottom of cylindrical shell (1), semiwater gas outlet (8) is arranged on the top of cylindrical shell (1), seal with epimere tube sheet (5) by hypomere tube sheet (2) in the cylindrical shell (1), following two sections shell sides, the epimere shell side is provided with conversion gas import (9), the hypomere shell side is provided with conversion gas outlet (10), has in the connection in cylindrical shell (1) outer setting, the tube connector of following two sections shell sides (11).
2. carbon monodixe conversion shell-and-tube main heat exchanger according to claim 1, it is characterized in that: hypomere tube sheet (2) in the cylindrical shell (1) and hypomere heat exchanger tube (4) adopt stainless steel to make, and epimere tube sheet (5) and epimere heat exchanger tube (6) adopt carbon steel or steel alloy to make.
3. carbon monodixe conversion shell-and-tube main heat exchanger according to claim 1 is characterized in that: epimere and hypomere at cylindrical shell (1) are respectively arranged with expansion joint (3).
4. carbon monodixe conversion shell-and-tube main heat exchanger according to claim 1 is characterized in that: be provided with condensate draining pipe (12) in the bottom of cylindrical shell (1).
5. carbon monodixe conversion shell-and-tube main heat exchanger according to claim 1 and 2 is characterized in that: shell side drainpipe (14) is set in the bottom of upper and lower two shell sides.
6. carbon monodixe conversion shell-and-tube main heat exchanger according to claim 1 and 2 is characterized in that: tube connector (11) adopts carbon steel or steel alloy to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200880172U CN201129942Y (en) | 2007-11-07 | 2007-11-07 | Carbon monoxide converter tube shell type main heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200880172U CN201129942Y (en) | 2007-11-07 | 2007-11-07 | Carbon monoxide converter tube shell type main heat exchanger |
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| Publication Number | Publication Date |
|---|---|
| CN201129942Y true CN201129942Y (en) | 2008-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200880172U Expired - Fee Related CN201129942Y (en) | 2007-11-07 | 2007-11-07 | Carbon monoxide converter tube shell type main heat exchanger |
Country Status (1)
| Country | Link |
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| CN (1) | CN201129942Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374794A (en) * | 2011-09-25 | 2012-03-14 | 山东省舜天化工集团有限公司 | Novel carrier gas preheater |
| CN103566864A (en) * | 2012-08-06 | 2014-02-12 | 河南省中原大化集团有限责任公司 | Device for improving heat transfer efficiency and working method thereof |
| CN105865232A (en) * | 2016-05-18 | 2016-08-17 | 无锡华精新材股份有限公司 | Shell-and-tube heat exchanger |
| CN109000213A (en) * | 2018-08-16 | 2018-12-14 | 江苏永大化工机械有限公司 | Steam generator |
| 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 |
| CN111895815A (en) * | 2020-08-05 | 2020-11-06 | 哈尔滨锅炉厂有限责任公司 | Combined waste heat recovery device |
-
2007
- 2007-11-07 CN CNU2007200880172U patent/CN201129942Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374794A (en) * | 2011-09-25 | 2012-03-14 | 山东省舜天化工集团有限公司 | Novel carrier gas preheater |
| CN103566864A (en) * | 2012-08-06 | 2014-02-12 | 河南省中原大化集团有限责任公司 | Device for improving heat transfer efficiency and working method thereof |
| CN103566864B (en) * | 2012-08-06 | 2015-08-19 | 河南省中原大化集团有限责任公司 | A kind of device and method of work improving heat transfer efficiency |
| CN105865232A (en) * | 2016-05-18 | 2016-08-17 | 无锡华精新材股份有限公司 | Shell-and-tube 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 |
| CN109000213A (en) * | 2018-08-16 | 2018-12-14 | 江苏永大化工机械有限公司 | Steam generator |
| CN111895815A (en) * | 2020-08-05 | 2020-11-06 | 哈尔滨锅炉厂有限责任公司 | Combined waste heat recovery device |
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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: 20081008 Termination date: 20141107 |
|
| EXPY | Termination of patent right or utility model |