CN201200885Y - Membrane type wall-shell type reactor - Google Patents
Membrane type wall-shell type reactor Download PDFInfo
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- CN201200885Y CN201200885Y CNU2008200360755U CN200820036075U CN201200885Y CN 201200885 Y CN201200885 Y CN 201200885Y CN U2008200360755 U CNU2008200360755 U CN U2008200360755U CN 200820036075 U CN200820036075 U CN 200820036075U CN 201200885 Y CN201200885 Y CN 201200885Y
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Abstract
The utility model discloses a film wall shell type reactor, which is provided with a cylinder body, an upper end closure and a lower end closure. The inside of the cylinder body is annularly provided with film walls which are used for removing reacting heat and consist of seamless steel tubes and heat exchange fins; dentate-sinuate cylindrical catalyst beds with different diameters consist of cavities formed between each two film walls; catalysts are filled in the catalyst beds; the upper end and the lower end of each film wall are connected with an upper subheader and a lower subheader respectively; an upper main header is arranged between the upper subheader and a water outlet pipe arranged on the upper end closure; a lower main header is arranged between the lower subheader and a water inlet pipe arranged on the lower end closure; the upper main header and the lower main header form a communicated combination body used for heat removing medium boiled water to flow; and an insulating layer body is arranged in the cylinder body above the film walls. The reactor has the advantages of strong heat removing capability, low running resistance, high gas reforming efficiency, small volume, the reduction of manufacturing cost, the improvement of the service life, and suitability for synthesis, dehydration, condensation, decomposition, gas purification and other devices.
Description
Technical field
The utility model relates to the reactor of chemical industry, especially a kind of membrane wall shell-type reactor.
Background technology
Reactor is as a kind of common equipment of chemical industry and be used widely, therebetween, people have carried out improvement repeatedly to reactor, in the hope of obtaining better result of use, fixed bed catalytic reactor once appearred, shell-and-tube water cooling reactor, several forms such as the shell-and-tube water cooling reactor of heat-insulated pipe shell-type water cooling reactor and Radial Flow, but, it is big that the reactor of these forms has volume all the time, the cost height, the heat exchange weak effect, space availability ratio is low in the cylindrical shell, running resistance is big, shortcomings such as equipment life is short, for this reason, China Patent No. ZL200620077859.3 discloses a kind of radial baffle shell-type reactor, this reactor comprises shell, the cold drawing internals, gas radial distribution tube and gas collecting jar with ground-on cover plate radially are installed in shell, at the radial distribution tube with radially be provided with the radially baffling parts that the deflection element that is provided with by some intervals is formed between the gas collecting jar with ground-on cover plate, reactor running resistance before this reactor has solved is big, the problem of heat exchange weak effect, improved the gas side simultaneously, the heat transfer coefficient of water side, overall dimension is little, but, other problems have also appearred in this radial baffle shell-type reactor thereupon: (1) cold drawing internals are separated with shell, outer casing inner wall all contacts with high-temperature reacting gas, to such an extent as to shell will be selected high temperature resistant material for use, causes manufacturing cost to increase.(2) heat exchanger plates of cold drawing internals all adopts welding, complex structure, and solder joint is many, and workmanship is difficult to guarantee, and just can't keeps in repair the service life of equipment weak point in case leak source occurs.(3) catalyst is converted into when going back ortho states by oxidation state, and catalyst volume dwindles, and causes the catalyst whole height to descend, and idle running appears in top, and during Radial Flow, unstrpped gas is easily walked the idle running on top, and unstrpped gas takes a shorter way, and has reduced the conversion ratio of gas.
The utility model content
The technical problems to be solved in the utility model is: the utility model has overcome shortcoming of the prior art, a kind of membrane wall shell-type reactor is provided, gas axial flow in this reactor, move the medium and the unstrpped gas reverse flow of heat, it is strong to move heat energy power, and running resistance is low, gas conversion ratio height, reactor volume is little under the equivalent production capacity, can reduce manufacturing cost, increases the service life.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of membrane wall shell-type reactor, has cylindrical shell, upper cover and low head, upper cover is connected with the cylindrical shell upper flanges, low head is welded on the cylindrical shell lower end, upper cover is provided with gas inlet pipe and outlet pipe, low head is provided with gas outlet tube, water inlet pipe and discharge duct, be filled with inert material in the low head, annular is provided with the membrane wall that is used to remove heat of reaction in the described cylindrical shell, the cavity that forms between per two membrane walls is formed the ripple tooth cylinder shape catalyst bed that diameter does not wait, described membrane wall upper end is connected with sub-header, the lower end is connected with down sub-header, is provided with between described upward sub-header and the outlet pipe and is connected with total header, is provided with between following sub-header and the water inlet pipe and is connected with down total header.
Furtherly, described membrane wall is made up of seamless steel pipe and heat exchange fin, heat exchange fin is welded on the seamless steel pipe, in cylindrical shell, be positioned at the membrane wall top position and be provided with the heat insulation layer body, described outlet pipe, go up total header, go up sub-header, membrane wall, down sub-header, total header, water inlet pipe connect successively down, form the assembly be used to move the connection that thermal medium boiling water flows, last sub-header, sub-header, the material of going up total header, following total header are seamless pipe down.
After the utility model adopts above scheme, have following advantage:
(1) safety coefficient height: the pipe that is used to move the boiling water process of heat all adopts seamless pipe, bears interior pressure 〉=5.0MPa, bears external pressure 〉=4.5MPa, and the seamless pipe on the membrane wall has reduced many welderings and met for ordering the chi pipe, has prolonged service life of equipment.
(2) distribution of gas is even: compare with radial reactor, gas flow adopt holoaxial to, avoid catalyst volume-diminished after reduction, appear at the radial section upper gas phenomenon that takes a shorter way, gas flows from top to bottom, and boiling water flows from bottom to top, distribution of gas is even, the catalyst utilization height.
(3) space reactor utilization rate height, loaded catalyst are big: compare with existing radial structure reactor, the distribution of gas and the gas collector that do not have radial section, the high-pressure bottle space all is the heat exchange element and the catalyst of membrane wall, high-pressure bottle space utilization factor height.
(4) thermal stress is handled well: bottom, the top of membrane wall are connected with sub-header, sub-header is connected with total header more then, sub-assembly is heated, and the back is whole upwards expands, can eliminate most of stress by the bend pipe of sub-header, total header, can effectively avoid the phenomenon of pre-existing reactors shell cracking or tube sheet fracture.
(5) catalyst is convenient to loading and unloading: catalyst autoreactor top is loaded into, and can freely draw off from the discharge duct of reactor lower part, and is simple to operate, alleviated labour intensity.
(6) equipment volume is little under the situation of equal loaded catalyst (equivalent production capacity), and not only cost is low, and is convenient to transportation, installation, is fit to device and maximizes.
(7) because to move heat energy power strong, unit product byproduct steam amount can be than existing water shifting heat reactor improve 15～30%.
(8) the catalyst bed resistance is low, catalyst bed latus rectum sectional area is 1.2～2.0 times of existing water shifting heat shell-and-tube reactor, can effectively reduce the linear velocity of gas on the catalyst bed cross section, the resistance of catalyst bed only is 40～60% of an existing water shifting heat shell-and-tube reactor, and the catalyst bed resistance can be controlled in 0.18～0.25MPa scope.
(9) applied widely, membrane wall shell-type reactor design pressure is at 1.0～31.5MPa, not only can be used to synthesize, devices such as dehydration, condensation, decomposition, also can be used for gas cleaning plant.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the A-A generalized section of Fig. 1.
Fig. 3 is a membrane wall structure schematic diagram of the present utility model.
12. times total header 13. discharge ducts 14. water inlet pipes 15. gas outlet tubes 16. low heads of 10. times sub-headers of sub-header 7. membrane wall 71. seamless steel pipes, 72. heat exchange fin 8. cylindrical shells, 9. catalyst beds, 11. inert materials on total header 5. heat insulation layer bodies 6. on 1. gas inlet pipe, 2. upper covers, 3. outlet pipes 4. among the figure
The specific embodiment
As a kind of membrane wall shell-type of Fig. 1 Fig. 2 the utility model shown in Figure 3 reactor, has cylindrical shell 8, upper cover 2 and low head 16, upper cover 2 is connected with cylindrical shell 8 upper flanges, low head 16 is welded on cylindrical shell 8 lower ends, upper cover 2 is provided with gas inlet pipe 1 and outlet pipe 3, low head 16 is provided with gas outlet tube 15, water inlet pipe 14 and discharge duct 13, be filled with inert material 11 in the low head 16, annular is provided with the membrane wall 7 that is used to remove heat of reaction in the cylindrical shell 8, membrane wall 7 is made up of seamless steel pipe 71 and heat exchange fin 72, heat exchange fin 72 is welded on the seamless steel pipe 71, the pipe that seamless steel pipe 71 flows as boiling water, and weldering is not met from top to bottom, not only improve the security of operation, also avoid CI in the water simultaneously
-1The corrosion that the butt welding that exceeds standard is met, prolonged the service life of reactor, the cavity that forms between per two membrane walls 7 is formed the ripple tooth cylinder shape catalyst bed 9 that diameter does not wait, in ripple tooth cylinder shape catalyst bed 9, can load catalyst, can adjust the loadings of catalyst according to the exothermic different situations of reaction, be connected with sub-header 6 in membrane wall 7 upper ends, the lower end is connected with down sub-header 10, be provided with between last sub-header 6 and the outlet pipe 3 and be connected with total header 4, be provided with between following sub-header 10 and the water inlet pipe 14 and be connected with down total header 12, last sub-header 6, following sub-header 10, go up total header 4, the material of total header 12 adopts the seamless pipe that diameter does not wait down, can improve the security of operation, reduce the device fabrication cost, the sub-assembly that more than links into an integrated entity has been formed and has been moved the hot cavity that moves that thermal medium boiling water flows, form the water route of complete closed, the whole upwards expansion in the back that is heated, can solve the thermal stress issues of pre-existing reactors well, effectively avoid the phenomenon of pre-existing reactors shell cracking or tube sheet fracture, in cylindrical shell 8, be positioned at membrane wall 7 top positions and be provided with heat insulation layer body 5.
Because upper cover 2 adopts flange to be connected with cylindrical shell 8 upper ends, so just can install, change the interior parts of cylindrical shell and the filling of catalyst easily, catalyst after the use and inert material 11 can be discharged easily from the discharge duct on the low head 16 13.
During the work of a kind of membrane wall shell-type of the utility model reactor, unstrpped gas enters cylindrical shell 8 by gas inlet pipe 1, successively by heat insulation layer body 5, ripple tooth cylinder shape catalyst bed 9, inert material 11 flows from top to bottom, move thermal medium boiling water and then enter cylindrical shell 8 from water inlet pipe 14, pass through total header 12 down successively, following sub-header 10, membrane wall 7, last sub-header 6, going up total header 4 flows from bottom to top, the heat of reaction of catalyst bed 9 is removed in unstrpped gas and boiling water reverse flow, helps molecular balance and moves to the positive reaction direction.The utility model moves that heat energy power is strong, and running resistance is low, gas conversion ratio height, and reactor volume is little under the equivalent production capacity, and is simple to operate, applied widely, long service life.
Claims (5)
1. membrane wall shell-type reactor, has cylindrical shell (8), upper cover (2), low head (16), upper cover (2) is connected with cylindrical shell (8) upper flanges, low head (16) is welded on cylindrical shell (8) lower end, upper cover (2) is provided with gas inlet pipe (1) and outlet pipe (3), low head (16) is provided with gas outlet tube (15), water inlet pipe (14) and discharge duct (13), be filled with inert material (11) in the low head (16), it is characterized in that: the interior annular of described cylindrical shell (8) is provided with the membrane wall (7) that is used to remove heat of reaction, the cavity that forms between per two membrane walls (7) is formed the ripple tooth cylinder shape catalyst bed (9) that diameter does not wait, described membrane wall (7) upper end is connected with sub-header (6), the lower end is connected with down sub-header (10), be provided with between described upward sub-header (6) and the outlet pipe (3) and be connected with total header (4), be provided with between following sub-header (10) and the water inlet pipe (14) and be connected with down total header (12).
2. a kind of membrane wall shell-type reactor according to claim 1 is characterized in that: described membrane wall (7) is made up of seamless steel pipe (71) and heat exchange fin (72), and heat exchange fin (72) is welded on the seamless steel pipe (71).
3. a kind of membrane wall shell-type reactor according to claim 1 is characterized in that: be positioned at membrane wall (7) top position in the described cylindrical shell (8) and be provided with heat insulation layer body (5).
4. a kind of membrane wall shell-type reactor according to claim 1, it is characterized in that: described outlet pipe (3), go up total header (4), go up sub-header (6), membrane wall (7), down sub-header (10), total header (12) is connected successively with water inlet pipe (14) down, composition is used to move the assembly of the mobile connection of thermal medium boiling water.
5. a kind of membrane wall shell-type reactor according to claim 1 is characterized in that: describedly go up sub-header (6), sub-header (10), the material of going up total header (4) and time total header (12) are seamless pipe down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200360755U CN201200885Y (en) | 2008-05-23 | 2008-05-23 | Membrane type wall-shell type reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200360755U CN201200885Y (en) | 2008-05-23 | 2008-05-23 | Membrane type wall-shell type reactor |
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| Publication Number | Publication Date |
|---|---|
| CN201200885Y true CN201200885Y (en) | 2009-03-04 |
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| CNU2008200360755U Expired - Fee Related CN201200885Y (en) | 2008-05-23 | 2008-05-23 | Membrane type wall-shell type reactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101279227B (en) * | 2008-05-23 | 2010-06-02 | 常州敦先化工设备有限公司 | Membrane type wall reactor |
| CN101974357A (en) * | 2010-08-20 | 2011-02-16 | 泰安天健应用技术推广中心 | Method for producing low-carbon environmentally-friendly clean gasoline by using solid super acid as catalyst |
-
2008
- 2008-05-23 CN CNU2008200360755U patent/CN201200885Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101279227B (en) * | 2008-05-23 | 2010-06-02 | 常州敦先化工设备有限公司 | Membrane type wall reactor |
| CN101974357A (en) * | 2010-08-20 | 2011-02-16 | 泰安天健应用技术推广中心 | Method for producing low-carbon environmentally-friendly clean gasoline by using solid super acid as catalyst |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090304 Termination date: 20110523 |