CN105457563A - Isothermal shift reactor with built-in tube bundle - Google Patents
Isothermal shift reactor with built-in tube bundle Download PDFInfo
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- CN105457563A CN105457563A CN201410455211.4A CN201410455211A CN105457563A CN 105457563 A CN105457563 A CN 105457563A CN 201410455211 A CN201410455211 A CN 201410455211A CN 105457563 A CN105457563 A CN 105457563A
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Abstract
The invention relates to a built-in tube bundle isothermal transformation reactor, which is characterized in that an axial annular tube bundle which is built in and uniformly distributed on a catalyst bed layer along the circumferential direction is adopted to remove reaction heat so as to realize isothermal transformation; a central tube bundle arranged in a central tube is adopted to preheat feed gas entering a reactor, so that the gas-gas heat exchanger is arranged in a built-in manner; the isothermal transformation reactor comprises a pressure-bearing shell, a catalyst basket, an axial annular tube bundle, a central tube and a central tube bundle; the axial annular tube bundle consists of an upper annular tube box, a lower annular tube box, an upper annular tube plate, a lower annular tube plate and a heat exchange tube; the invention effectively reduces the manufacturing cost of equipment by adopting the built-in pipe bundle, effectively reduces the size of the pipe plate by adopting the bending structure of the end part of the heat exchange pipe, effectively isolates the contact between the welding spot of the pipe end and the high-temperature zone of the bed layer by the heat insulation layer laid between the pipe plate and the high-temperature catalyst bed layer, reduces the leakage probability and improves the reliability of the equipment; the invention has the advantages of compact structure, low manufacturing cost, easy maintenance, high reliability, complete functions and wide applicability.
Description
Technical field
The invention belongs to technical field of chemical, relate to a kind of isothermal shift-converter, particularly relate to a kind of built-in tube bank isothermal shift-converter.
Background technology
The transformationreation of CO is a reaction that is reversible, heat release, and its reaction equation is:
When the CO content in unstripped gas is higher, reaction heat must be removed in time, otherwise conversion gas temperature will be caused sharply to rise, be a larger injury to the catalyst in change furnace, directly can reduce catalyst life, also may directly catalyst scaling loss be lost efficacy; Transformationreation is simultaneously reversible reaction, removes reaction heat not in time, reaction can be caused can not to carry out to the degree of depth.
At present, usually the coal gasifying process adopted, all be that raw material adopts pure oxygen to make coal water slurry gasification or the coal gasification of gasifying agent with coal, CO content in the unstripped gas that these techniques are made is up to 50% ~ 76%, traditional change furnace does not adapt to so high CO at all and converts requirement, generally to adopt multistage, the comparatively complicated flow process of multistage, thin bed, middle repeatedly heat exchange reaches the requirement of conversion, will cause that flow process is longer, investment is comparatively large like this, if temperature is lost control of and can be caused " temperature runaway " problem simultaneously.
The patent No. is " ZL200920102700.6 ", name is called the Chinese utility model patent of " a kind of water-tube reactor ", disclose a kind of water-tube reactor, comprise shell of reactor and be assemblied in the cooler tube bundle in shell of reactor, cooler tube bundle is made up of more than one cooler tube bundle heat exchanging unit bodies parallel with one another, cooler tube bundle heat exchanging unit bodies is longitudinally evenly distributed in shell of reactor, the carbonated drink outlet of cooler tube bundle heat exchanging unit bodies is once through carbonated drink communicating pipe, carbonated drink house steward connects the outlet of end socket carbonated drink, the water inlet of cooler tube bundle heat exchanging unit bodies connects bottom water inlet manifold via after water tube connector.Although this water-tube reactor can carry out gas-liquid heat exchange remove reaction heat, there is complex structure in this equipment, solder joint is many, reliability is not high and the problem of maintenance difficult.
The patent No. is " ZL200810024974.8 ", name is called the Chinese invention patent of " multiphase heat-transferring heat-insulated pipe shell type reactor ", disclose a kind of multiphase heat-transferring heat-insulated pipe shell type reactor, comprise cylindrical shell, upper cover, gas side seal head and low head, cylindrical shell is fixedly connected with upper cover, gas side seal head is positioned at inner barrel, cylindrical shell is fixedly connected with lower perforated plate, low head is fixedly connected with lower perforated plate, gas side seal head is fixedly connected with upper perforated plate, lower perforated plate and low head form the first chamber, upper perforated plate becomes the second chamber with gas side seal capitiform, first chamber is connected by water side heat exchanger tube with the second chamber, water side heat exchanger tube is arranged in the 3rd chamber at least partly, cold air heat exchanger tube is coated with in the heat exchanger tube of water side.Although this device can carry out different medium by built-in tube bank move heat, this reactor is hot-wall structure (high-temperature medium directly contacts with wall), and is provided with large tubesheet, built-in large end socket, and materials are more; And the solder joint of its exchanger tubes and tubesheets is exposed to bed high-temperature region, have impact on reliability of structure; In addition, the shortcomings such as its reaction is adiabatic reaction, and such temperature rise of reacting intrinsic is wayward still exist.
To sum up, a kind of isothermal shift-converter that can solve above-mentioned technical problem existing in prior art is needed, with the needs of satisfied actual chemical industry production operation.
Summary of the invention
The object of the invention is to, a kind of built-in tube bank isothermal shift-converter is provided, to solve above-mentioned technical problem existing in prior art, thus shortened process, save investment of production, reduce manufacturing cost and improve production reliability, meeting the needs of actual chemical industry production operation.
For achieving the above object, the invention provides a kind of built-in tube bank isothermal shift-converter, comprise pressure-bearing shell, also comprise the unstripped gas entrance be arranged on pressure-bearing shell, conversion gas outlet, the outlet of boiler water entrance, boiler water and catalyst discharge port;
Also comprise the catalyst basket be arranged in pressure-bearing shell, axial annular tube bank, central tube, ring cavity cylindrical shell and center tube bank; Connected by expansion joint between axial annular tube bank exports with boiler water, poor with the thermal expansion deformation absorbed between tube bank and pressure-bearing shell; Within catalyst is contained in catalyst basket, beyond central tube, and axial annular is restrained in the space formed; Axial annular tube bank is by boiler water distributor, boiler water collection device, and the heat exchanger tube be connected with upper annular tubesheet, lower annular tubesheet forms; Described boiler water distributor is made up of lower annular bobbin carriage and lower annular tubesheet; Described boiler water collection device is made up of upper annular bobbin carriage and upper annular tubesheet, and described heat exchanger tube is made up of straight tube and end bending tube;
Also comprise the lower boiler water be connected with boiler water import to take over, export with boiler water the upper boiler water be connected and take over, and support and the support plate of fixing heat exchanger tube.
In above scheme preferably, it adopts the combining structure through the gas-liquid heat exchange of axial ring pipe bundle and the gas-gas heat exchange through center tube bank; Unstripped gas enters reactor head by center tube bank, then is distributed to the annular space of catalyst basket, more radially enters the cold wall construction of the radial flow arrangement of beds and the pressure-bearing shell high temperature shift gas not after haptoreaction by the Kong Zhen of catalyst basket.
Can also preferably, it adopts only through the single structure of the gas-liquid heat exchange of axial ring pipe bundle; Unstripped gas enters reactor head by the unstripped gas entrance at top, be distributed to the annular space of catalyst basket again, more radially enter the cold wall construction of the radial flow arrangement of beds and the pressure-bearing shell high temperature shift gas not after haptoreaction by the Kong Zhen of catalyst basket.
Can also preferably, the straight tube of heat exchanger tube, end bending tube and upper annular tubesheet, lower annular tubesheet form direct syndeton; Upper annular bobbin carriage adopts half tubular construction with lower annular bobbin carriage and is directly connected with tube sheet.
Can also preferably, upper annular bobbin carriage and lower annular bobbin carriage bobbin carriage are equally divided into the structure of at least two sections.
Can also preferably, upper annular bobbin carriage and lower annular bobbin carriage bobbin carriage are equally divided into the structure of three sections.
Can also preferably, lay refractory matter between annular tubesheet and beds down.
Can also preferably, axial annular tube bank and center tube bank equal leaving certain gaps uncovered by the economic plan in inner side and outer side, namely leave not stringing region.
Can also preferably, center tube bank is arranged in central tube, and tube side bottom in and top out made leave with rage by raw material, conversion gas walks shell side upper entering and lower leaving through gas collection ring cavity in employing, and realizes the center tube bank arrangement of countercurrent flow by the baffling of rod baffle.
Can also preferably, the overall welding contact in its bed high-temperature region.
Compared with prior art, the present invention has the following advantages:
One of the present invention built-in tube bank isothermal shift-converter, for existing shift-converter Problems existing, by arranging heat exchanger tube in beds, passes into boiler water in heat exchanger tube; Boiler water is by heat exchanger tube and conversion gas heat exchange, and boiler water absorbs heat vaporization, removes the heat of transformationreation in time; When pressure one timing of boiler water, the temperature of boiler water is stable; When being evenly arranged heat exchanger tube in beds, transformationreation liberated heat can be removed in time by boiler water; The temperature of conversion gas can be made like this to remain constant or temperature rise is very little, thus realize isothermal conversion; Isothermal conversion can guard catalyst from scaling loss, and life-span of extending catalyst, reduce the replacement cost of catalyst; Meanwhile, the heat produced due to reaction is removed in time, can maintain reaction motive force, increases the conversion ratio of CO; In addition, by the arrangement mode of heat exchanger tube, can control the Temperature Distribution in beds, less heat exchanger tube of arranging in outer ring can make the temperature of unstripped gas improve, and improves reaction efficiency; The more heat exchanger tube of middle arrangement can remove the heat that conversion produces in time, maintains the temperature constant of bed; Inner ring less heat exchanger tube of arranging can make the temperature of conversion gas improve further, is preheating material air lift heating load; By being arranged at the center tube bank in central tube, utilizing reacted high temperature shift gas preheating material gas, making the unstripped gas of being restrained by center reach light-off temperature, enter beds by the Kong Zhen of catalyst basketry, starting transformationreation.
One of the present invention built-in tube bank isothermal shift-converter, adopts embedding structure, and reaction heat is shifted out in the axial annular tube bank being distributed in beds according to certain rules, realizes isothermal conversion; Adopt the heat-exchanging tube bundle preheating be built in central tube to enter the unstripped gas of reactor, realize the built-in of gas-gas heat exchanger; Adopt boiler water as heat-conducting medium, flow process is short, and flow resistance is little, adopts Natural Circulation; Heat exchanger tube adopts homogeneous tube to make, and without joints, only pipe end and Tube-sheet Welding, adopts two annular bobbin carriages, weld seam is short, and welding node is few, and all solder joints are placed in outside high temperature bed, whole bed high-temperature region welding contact, decreases leakage probability, improves the reliability of device; In the tube bank of center, tube side made leave with rage by raw material, and conversion makes shell side leave with rage, countercurrent flow, and heat transfer temperature difference is large, and heat exchange efficiency is high, can effectively reduce conversion gas outlet temperature; Unstripped gas adopts the mode of bottom in and top out, walks the tube side of center tube bank; Conversion gas adopts the mode of upper entering and lower leaving, walks the shell side of center tube bank, can save air inlet center culvert, thus effectively reduce heat exchanger diameter, reduces central tube diameter.
One of the present invention built-in tube bank isothermal shift-converter, adopts the cold wall construction of radial converting furnace, the advantages such as radial flow process is short, and flow resistance is little, and catalyst bed layer height is not limited; Adopt built-in axial annular to restrain and remove reaction heat, avoid adiabatic reaction temperature rise large, reaction depth is low, draws heat exchange cooling, otherwise can burn the shortcomings such as catalyst in the middle of needing; Built-in center is adopted to restrain, with the pyroreaction gas preheating material gas after conversion; Employing gas-gas heat exchanger is built-in, and heat exchanger adopts pressure reduction design, can save gas-gas heat exchanger external time investment, and shorten flow process; By regulating the pressure of boiler water in annular tube bank heat-exchanger rig, the saturation temperature of boiler water can be regulated, regulate the temperature difference of conversion gas and boiler water, regulating heat exchange efficiency, controlling to shift out heat numerical value, finally can regulate the conversion gas temperature entering central tube; Can restrain by regulating annular the calorie value shifted out, center tube bank can adopt full flow heat exchange, does not need Flow-rate adjustment just can control the preheat temperature of unstripped gas.
One of the present invention built-in tube bank isothermal shift-converter, the tube bank of its axial annular is characterised in that: (1) tube bank heat exchanger tube is equidistantly arranged along body of heater is radial, circumference is uniformly distributed, whole tube bank heat exchanger tube is evenly distributed in the middle of bed substantially, heat exchange is even, good effect of heat exchange, can realize isothermal conversion; (2) ring pipe intrafascicular heat exchanger tube is straight tube, and edge, inner side and outer side tube end to middle bending, thus reduces the size of annular tubesheet, makes two ends channel structure compact; (3) adopt annular bobbin carriage, annular tubesheet, thus force structure is good, tube sheet is thin, lightweight; (4) whole of heat exchanger tube is made, and without joints, the welding point of heat exchanger tube and annular tubesheet, bobbin carriage and annular tubesheet, bobbin carriage and outer tube is positioned at outside beds; Lower annular tubesheet contacts with beds, arranges refractory matter, effectively isolate high-temperature region at lower annular tubesheet and catalyst bed interlayer; Whole bed high-temperature region welding contact, decreases leakage probability, improves the reliability of device; (5) two not cloth areas under control are all left in the inner side and outer side of center tube bank and axial annular tube bank, reserve two breach and load and unload for staff and clear up catalyst, thus facilitate the handling of catalyst; (6) between upper boiler water adapter and boiler water export, establish expansion joint, the thermal expansion difference between annular tube bank and housing can be compensated, and effectively reduce the size of expansion joint.
One of the present invention built-in tube bank isothermal shift-converter, its built-in center tube bank is characterised in that: the tube bank of (1) center is built in reactor, heat exchanger can adopt pressure reduction to design, can omitting external time pressure-bearing shell and adpting flange, and effectively reduce tube plate thickness, greatly reduce the investment of gas-gas heat exchanger; (2) tube side made leave with rage by raw material, and conversion makes shell side leave with rage, countercurrent flow, and heat transfer temperature difference is large, and heat exchange efficiency is high, and can effectively reduce conversion gas outlet temperature; (3) the upper annular tubesheet of center tube bank is fixed in the tube bank of center, and lower end pipe inserts in raw material gas inlet pipe, middle employing packing seal, and lower end pipe can slide, thus can eliminate the thermal expansion difference between central tube and center tube bank; (4) unstripped gas adopts the mode of bottom in and top out, walk the tube side of center tube bank, conversion gas adopts the mode of upper entering and lower leaving, walk the shell side of center tube bank, countercurrent flow, heat transfer temperature difference is large, efficiency is high, and air inlet center culvert can be saved, thus effectively reduce heat exchanger diameter, reduce central tube diameter.
One of the present invention built-in tube bank isothermal shift-converter, gas-gas heat exchanger-center the tube bank being positioned at central tube can also be shifted out change furnace by it, remove ring cavity cylindrical shell, retain central tube, hoop tube bank is covered with whole bed space (except reserved space for maintenance), reaction heat is taken away by cooling fluid in heat exchanger tube completely, and the control of temperature is by realizing the temperature and pressure parameter of tube fluid and flow-control; This simplified example remains the high reliability feature of former scheme, and enormously simplify technological process in stove.
One of the present invention built-in tube bank isothermal shift-converter, it adopts axial annular to restrain and integral central Pipe bundle structure, facilitates the arrangement of heat exchanger tube, the installation of convenient tube bank and transport; The straight tube of its heat exchanger tube and end bending tube and upper annular tubesheet, lower annular tubesheet form compact connection structure; Its upper and lower annular bobbin carriage adopts half tubular construction and is directly connected with tube sheet, and bobbin carriage is divided into several sections, and available hoop Flange joint, to facilitate maintenance; Its lower annular tubesheet and catalyst bed interlayer lay refractory matter, and heat exchanger tube is at whole bed high-temperature region no-welding-spot, and reliability is high; Its axial annular tube bank equal leaving certain gaps uncovered by the economic plan in medial and lateral (not stringing region), passes in and out handling catalyst to facilitate maintainer; It arranges center tube bank (gas-gas heat exchanger) being positioned at central tube, and comparatively tube side bottom in and top out made leave with rage by space-efficient raw material, conversion gas walks shell side upper entering and lower leaving through gas collection ring cavity, is realized the center tube bank arrangement of countercurrent flow by rod baffle baffling.
One of the present invention built-in tube bank isothermal shift-converter, provide structure of reactor and the internal placement mode of innovative design, adopt new flow process and heat exchange structure, the shortcoming and defect of reactor before overcoming, improve reaction efficiency, improve inner space availability ratio, reduce flow path resistance, reduce equipment investment and operating cost, there is very large technological break-through.
One of the present invention built-in tube bank isothermal shift-converter, above-mentioned technical problem existing in prior art can be solved, thus shortened process, save investment of production, reduce manufacturing cost and improve production reliability, meeting the needs of actual chemical industry production operation.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the invention will be further described:
Fig. 1 is the structural representation with the built-in tube bank isothermal shift-converter that axial annular is restrained and center is restrained of the present invention;
Fig. 2 is the top view of the structural representation with the built-in tube bank isothermal shift-converter that axial annular is restrained and center is restrained of the present invention of Fig. 1;
Fig. 3 is the structural representation of the built-in tube bank isothermal shift-converter of band of the present invention axial ring pipe bundle;
Fig. 4 is the top view of the structural representation of the built-in tube bank isothermal shift-converter of the band of the present invention axial ring pipe bundle of Fig. 3;
Fig. 5 is the structural representation of the axial annular tube bank of built-in tube bank isothermal shift-converter of the present invention.
In figure, 1 is boiler water entrance, and 2 is catalyst discharge port, 3 is refractory matter, and 4 is pressure-bearing shell, and 5 is catalyst basket, 6 is axial annular tube bank, and manage centered by 7,8 is beds, 9 is expansion joint, 10 is boiler water outlet, and 11 is unstripped gas entrance, and 12 is conversion gas outlet, restrain centered by 13,14 is ring cavity cylindrical shell; 6-1 is the adapter of lower boiler water, and 6-2 is lower annular bobbin carriage, and 6-3 is lower annular tubesheet, and 6-4 is straight tube, and 6-5 is support plate, and 6-6 is end bending tube, the upper annular tubesheet of 6-7, the upper annular bobbin carriage of 6-8, and 6-9 is the adapter of upper boiler water.
Detailed description of the invention
In order to understand the present invention better, below in conjunction with specific embodiment, the present invention is explained in detail.But, obviously can carry out different modification and remodeling to the present invention and not exceed the wider spirit and scope of the present invention of appended claims.Therefore, following examples have exemplary and hard-core implication.
Embodiment 1:
As depicted in figs. 1 and 2, a kind of built-in tube bank isothermal shift-converter, comprise pressure-bearing shell (4), be arranged on the unstripped gas entrance (11) on pressure-bearing shell (4), conversion gas outlet (12), boiler water entrance (1), boiler water outlet (10) and catalyst discharge port (2), and the catalyst basket (5) be arranged in pressure-bearing shell (4), axial annular tube bank (6), central tube (7), ring cavity cylindrical shell (14), and center tube bank (13).Axial annular tube bank (6) exports with boiler water between (10) and is connected by expansion joint (9), poor with the thermal expansion deformation absorbed between tube bank and housing.Within catalyst (8) is contained in catalyst basket (5), beyond central tube (7) and in the space of axial annular tube bank.The boiler water distributor that axial annular tube bank (6) is as shown in Figure 5 made up of lower annular bobbin carriage (6-2) and lower annular tubesheet (6-3), the boiler water collection device that upper annular bobbin carriage (6-8) and upper annular tubesheet (6-7) form, and the heat exchanger tube be connected with upper and lower annular tubesheet: straight tube (6-4) and end bending tube (6-6) form; Also comprise the lower boiler water be connected with boiler water import to take over (6-1), export with boiler water the upper boiler water be connected and take over (6-9), and the support plate (6-5) of support and fixing heat exchanger tube; Upper annular tubesheet (6-7) and lower annular tubesheet (6-3) form annular tubesheet.
Unstripped gas is entered by unstripped gas entrance (11), reactor top is entered by the tube side at center tube bank (13), be distributed to the ring cavity between pressure-bearing shell (4) and catalyst basket (5), Kong Zhen on catalyst basket (5) enters beds (8), raw transformationreation is issued at catalyst action, release heat, the boiler water that reaction heat major part is evenly distributed in axial annular tube bank (6) in bed is taken away, react rear and have the conversion gas of certain temperature rise by the Kong Zhen of central tube (7), import by the ring cavity between central tube (7) and ring cavity cylindrical shell (14), upwards flow and enter the shell side at center tube bank (13) from the top of ring cavity cylindrical shell (14), with the low temperature feedstock gas countercurrent flow of tube side, conversion gas temperature reduces, unstripped gas temperature raises, conversion gas after heat exchange cooling flows out from the annular space between central tube (7) and center tube bank (13) lower tube box, reactor is left via conversion gas outlet (12).Cooling medium in axial annular tube bank heat-exchanger rig can be any cooling fluid in theory, is preferably boiler water.
Embodiment 2:
As shown in Figure 3 and Figure 4, a kind of built-in tube bank isothermal shift-converter, center tube bank (13) heat exchanger in central tube (7) is shifted out reactor by it; Unstripped gas changes and is entered by reactor top unstripped gas entrance (11), be distributed to the ring cavity between pressure-bearing shell (4) and catalyst basket (5), Kong Zhen on catalyst basket (5) enters beds (8), react under catalyst action, release heat, the boiler water that reaction heat major part is evenly distributed in axial annular tube bank (6) in bed is taken away, reacted conversion gas is collected by central tube (7), and the conversion gas via bottom exports (12) and leaves reactor.
The built-in tube bank isothermal shift-converter of this another embodiment, to the gas-gas heat exchanger of central tube (7) be positioned at---change furnace is shifted out at center tube bank (13), remove ring cavity cylindrical shell, retain central tube (7), axial annular tube bank (6) is covered with whole bed space (except reserved space for maintenance), reaction heat is taken away by cooling fluid in heat exchanger tube completely, and the control of temperature is by realizing the temperature and pressure parameter of tube fluid and flow-control; This simplified example remains the high reliability feature of former scheme, simplifies technological process in stove.
Should be appreciated that, foregoing description is only used to set forth the present invention.Those skilled in the art can make a variety of substitutions and modifications without departing from the present invention.Therefore, the invention is intended to all these replacement forms, amendment and distortion be included in the protection domain of appended claims.
Claims (10)
1. a built-in tube bank isothermal shift-converter, comprise pressure-bearing shell (4), it is characterized in that: also comprise the unstripped gas entrance (11) be arranged on pressure-bearing shell (4), conversion gas outlet (12), boiler water entrance (1), boiler water outlet (10) and catalyst discharge port (2);
Also comprise the catalyst basket (5) be arranged in pressure-bearing shell (4), axial annular tube bank (6), central tube (7), ring cavity cylindrical shell (14) and center tube bank (13); Axial annular tube bank (6) is exported with boiler water between (10) and is connected by expansion joint (9), poor with the thermal expansion deformation absorbed between tube bank and pressure-bearing shell (4); Within catalyst (8) is contained in catalyst basket (5), beyond central tube (7), and axial annular is restrained in the space formed; Axial annular tube bank (6) is by boiler water distributor, boiler water collection device, and the heat exchanger tube be connected with upper annular tubesheet (6-7), lower annular tubesheet (6-3) forms; Described boiler water distributor is made up of lower annular bobbin carriage (6-2) and lower annular tubesheet (6-3), described boiler water collection device is made up of upper annular bobbin carriage (6-8) and upper annular tubesheet (6-7), and described heat exchanger tube is made up of straight tube (6-4) and end bending tube (6-6);
Also comprise the lower boiler water be connected with boiler water import to take over (6-1), export with boiler water the upper boiler water be connected and take over (6-9), and support and the support plate (6-5) of fixing heat exchanger tube.
2. built-in tube bank isothermal shift-converter as claimed in claim 1, is characterized in that: it adopts the combining structure through the gas-liquid heat exchange of axial ring pipe bundle (6) and the gas-gas heat exchange through center tube bank; Unstripped gas enters reactor head by center tube bank (13), be distributed to the annular space of catalyst basket (5) again, more radially enter the cold wall construction of the radial flow arrangement of beds and pressure-bearing shell (4) the high temperature shift gas not after haptoreaction by the Kong Zhen of catalyst basket (5).
3. built-in tube bank isothermal shift-converter as claimed in claim 1, is characterized in that: it adopts only through the single structure of the gas-liquid heat exchange of axial ring pipe bundle (6); Unstripped gas enters reactor head by the unstripped gas entrance (11) at top, be distributed to the annular space of catalyst basket (5) again, more radially enter the cold wall construction of the radial flow arrangement of beds and pressure-bearing shell (4) the high temperature shift gas not after haptoreaction by the Kong Zhen of catalyst basket (5).
4. isothermal shift-converter as claimed in claim 1, is characterized in that: straight tube (6-4), the end bending tube (6-6) of heat exchanger tube form direct syndeton with upper annular tubesheet (6-7), lower annular tubesheet (6-3); Upper annular bobbin carriage (6-8) adopts half tubular construction with lower annular bobbin carriage (6-2) and is directly connected with tube sheet.
5. built-in tube bank isothermal shift-converter as claimed in claim 4, is characterized in that: upper annular bobbin carriage (6-8) and lower annular bobbin carriage (6-2) bobbin carriage are equally divided into the structure of at least two sections.
6. built-in tube bank isothermal shift-converter as claimed in claim 5, is characterized in that: upper annular bobbin carriage (6-8) and lower annular bobbin carriage (6-2) bobbin carriage are equally divided into the structure of three sections.
7. built-in tube bank isothermal shift-converter as claimed in claim 5, is characterized in that: lay refractory matter (3) between lower annular tubesheet (6-3) and beds.
8. built-in tube bank isothermal shift-converter as claimed in claim 7, is characterized in that: axial annular tube bank (6) equal leaving certain gaps uncovered by the economic plan in inner side and outer side, namely leaves not stringing region.
9. built-in tube bank isothermal shift-converter as claimed in claim 8, it is characterized in that: center tube bank (13) is arranged in central tube (7), tube side bottom in and top out made leave with rage by raw material, conversion gas walks shell side upper entering and lower leaving through gas collection ring cavity in employing, and realizes center tube bank (13) arrangement of countercurrent flow by the baffling of rod baffle.
10. built-in tube bank isothermal shift-converter as claimed in claim 9, is characterized in that: the overall welding contact in its bed high-temperature region.
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| CN201410455211.4A CN105457563B (en) | 2014-09-09 | 2014-09-09 | Isothermal shift reactor with built-in tube bundle |
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| CN201410455211.4A CN105457563B (en) | 2014-09-09 | 2014-09-09 | Isothermal shift reactor with built-in tube bundle |
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| CN105457563B CN105457563B (en) | 2020-03-13 |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105903413A (en) * | 2016-06-27 | 2016-08-31 | 南京聚拓化工科技有限公司 | Gas-gas heat exchange type isothermal reactor |
| CN106964301A (en) * | 2017-05-18 | 2017-07-21 | 华陆工程科技有限责任公司 | The Novel furnace formula reactor of built-in raw material preheating and steam superheating device |
| CN107576219A (en) * | 2017-09-06 | 2018-01-12 | 河北科技大学 | A kind of combination tubular sheet heat exchanger with thermal compensation function |
| CN108393044A (en) * | 2018-04-09 | 2018-08-14 | 南京聚拓化工科技有限公司 | The radial methanol reactor of combined type heat exchange and methanol synthesizing process |
| CN108404821A (en) * | 2018-05-22 | 2018-08-17 | 中石化宁波工程有限公司 | A kind of energy-saving and high efficient radial direction methanol reactor |
| CN108421506A (en) * | 2018-05-22 | 2018-08-21 | 中石化宁波工程有限公司 | A kind of energy-saving radial reactor suitable for strong exothermal reaction |
| CN108421505A (en) * | 2018-05-22 | 2018-08-21 | 中石化宁波工程有限公司 | A kind of radial-axial combined reactor suitable for strong exothermal reaction |
| CN108499492A (en) * | 2018-05-31 | 2018-09-07 | 南京聚拓化工科技有限公司 | The restoring method of three five sections of detachable ammonia synthesis reactors and catalyst |
| CN108774113A (en) * | 2018-06-20 | 2018-11-09 | 北京化工大学 | The process units and its production method of bisphenol-A |
| CN109054908A (en) * | 2018-09-30 | 2018-12-21 | 中石化宁波工程有限公司 | A kind of isothermal conversion process of mating coal gasification |
| CN109279573A (en) * | 2018-09-30 | 2019-01-29 | 中石化宁波工程有限公司 | A kind of isothermal conversion process of mating coal water slurry gasification |
| CN110327847A (en) * | 2019-08-07 | 2019-10-15 | 华东理工大学 | Radial Flow heat exchange type fixed bed catalytic reactor |
| CN110681318A (en) * | 2018-07-06 | 2020-01-14 | 中国科学院大连化学物理研究所 | Axial flow fixed bed reactor with built-in modular heat collector |
| CN110790225A (en) * | 2019-10-24 | 2020-02-14 | 中石化宁波工程有限公司 | Isothermal converter with double cooling systems |
| CN110876913A (en) * | 2019-11-05 | 2020-03-13 | 中国石油化工股份有限公司 | Radial bed isothermal transformation reaction device |
| WO2020176395A1 (en) * | 2019-02-26 | 2020-09-03 | Chevron Phillips Chemical Company Lp | Bi-modal radial flow reactor |
| CN112221434A (en) * | 2020-09-27 | 2021-01-15 | 李忠 | Catalytic reactor utilizing self-heat-carrying and reaction heat of high-temperature raw material gas |
| CN113813882A (en) * | 2020-06-18 | 2021-12-21 | 南京聚拓化工科技有限公司 | Gas distribution piece and reactor |
| RU2778322C1 (en) * | 2019-02-26 | 2022-08-17 | ШЕВРОН ФИЛЛИПС КЕМИКАЛ КОМПАНИ ЭлПи | Bimodal reactor with radial flow |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2925377A (en) * | 1955-04-01 | 1960-02-16 | Exxon Research Engineering Co | Isothermal catalytic reforming |
| CN1060636A (en) * | 1991-12-03 | 1992-04-29 | 中国石油化工总公司 | Two-section radial parallel heat exchanging type ammonia synthetic tower |
| US5545382A (en) * | 1994-11-25 | 1996-08-13 | Uop | Process and apparatus for discharging particles and fluids from flow channels |
| CN201253565Y (en) * | 2008-09-16 | 2009-06-10 | 庞玉学 | Outer cold type synthesis converter |
| CN101703910A (en) * | 2009-08-20 | 2010-05-12 | 上海国际化建工程咨询公司 | Built-in cold wall type shift reactor for heat exchanger and direction connection structure for shift reactor and downstream heat exchanging equipment |
| CN102580626A (en) * | 2012-03-20 | 2012-07-18 | 南京国昌化工科技有限公司 | Double-shaft radial flow reactor |
| CN102886229A (en) * | 2012-10-08 | 2013-01-23 | 中国石油化工集团公司 | CO (carbon monoxide) full-radial isothermal converting furnace |
| CN203227477U (en) * | 2013-04-09 | 2013-10-09 | 上海国际化建工程咨询公司 | Constant-temperature fixed-bed reactor for filling catalysts among heat exchange tubes |
| CN204051637U (en) * | 2014-09-09 | 2014-12-31 | 航天长征化学工程股份有限公司 | A kind of built-in tube bank isothermal shift-converter |
-
2014
- 2014-09-09 CN CN201410455211.4A patent/CN105457563B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2925377A (en) * | 1955-04-01 | 1960-02-16 | Exxon Research Engineering Co | Isothermal catalytic reforming |
| CN1060636A (en) * | 1991-12-03 | 1992-04-29 | 中国石油化工总公司 | Two-section radial parallel heat exchanging type ammonia synthetic tower |
| US5545382A (en) * | 1994-11-25 | 1996-08-13 | Uop | Process and apparatus for discharging particles and fluids from flow channels |
| CN201253565Y (en) * | 2008-09-16 | 2009-06-10 | 庞玉学 | Outer cold type synthesis converter |
| CN101703910A (en) * | 2009-08-20 | 2010-05-12 | 上海国际化建工程咨询公司 | Built-in cold wall type shift reactor for heat exchanger and direction connection structure for shift reactor and downstream heat exchanging equipment |
| CN102580626A (en) * | 2012-03-20 | 2012-07-18 | 南京国昌化工科技有限公司 | Double-shaft radial flow reactor |
| CN102886229A (en) * | 2012-10-08 | 2013-01-23 | 中国石油化工集团公司 | CO (carbon monoxide) full-radial isothermal converting furnace |
| CN203227477U (en) * | 2013-04-09 | 2013-10-09 | 上海国际化建工程咨询公司 | Constant-temperature fixed-bed reactor for filling catalysts among heat exchange tubes |
| CN204051637U (en) * | 2014-09-09 | 2014-12-31 | 航天长征化学工程股份有限公司 | A kind of built-in tube bank isothermal shift-converter |
Cited By (32)
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|---|---|---|---|---|
| CN105903413A (en) * | 2016-06-27 | 2016-08-31 | 南京聚拓化工科技有限公司 | Gas-gas heat exchange type isothermal reactor |
| CN105903413B (en) * | 2016-06-27 | 2018-07-20 | 南京聚拓化工科技有限公司 | Gas-gas heat exchange type isothermal reactor |
| CN106964301A (en) * | 2017-05-18 | 2017-07-21 | 华陆工程科技有限责任公司 | The Novel furnace formula reactor of built-in raw material preheating and steam superheating device |
| CN106964301B (en) * | 2017-05-18 | 2023-02-28 | 华陆工程科技有限责任公司 | Novel furnace type reactor with built-in raw material preheating and steam superheating device |
| CN107576219A (en) * | 2017-09-06 | 2018-01-12 | 河北科技大学 | A kind of combination tubular sheet heat exchanger with thermal compensation function |
| CN107576219B (en) * | 2017-09-06 | 2019-03-15 | 河北科技大学 | A kind of combination tubular sheet heat exchanger with thermal compensation function |
| CN108393044A (en) * | 2018-04-09 | 2018-08-14 | 南京聚拓化工科技有限公司 | The radial methanol reactor of combined type heat exchange and methanol synthesizing process |
| CN108393044B (en) * | 2018-04-09 | 2023-10-27 | 南京聚拓化工科技有限公司 | Combined heat exchange radial methanol reactor and methanol synthesis process |
| CN108421506A (en) * | 2018-05-22 | 2018-08-21 | 中石化宁波工程有限公司 | A kind of energy-saving radial reactor suitable for strong exothermal reaction |
| CN108421505B (en) * | 2018-05-22 | 2024-04-12 | 中石化宁波工程有限公司 | Radial-axial combined reactor suitable for strong exothermic reaction |
| CN108404821B (en) * | 2018-05-22 | 2024-03-22 | 中石化宁波工程有限公司 | Energy-saving efficient radial methanol reactor |
| CN108421506B (en) * | 2018-05-22 | 2023-11-28 | 中石化宁波工程有限公司 | Energy-saving radial reactor suitable for strong exothermic reaction |
| CN108421505A (en) * | 2018-05-22 | 2018-08-21 | 中石化宁波工程有限公司 | A kind of radial-axial combined reactor suitable for strong exothermal reaction |
| CN108404821A (en) * | 2018-05-22 | 2018-08-17 | 中石化宁波工程有限公司 | A kind of energy-saving and high efficient radial direction methanol reactor |
| CN108499492A (en) * | 2018-05-31 | 2018-09-07 | 南京聚拓化工科技有限公司 | The restoring method of three five sections of detachable ammonia synthesis reactors and catalyst |
| CN108499492B (en) * | 2018-05-31 | 2023-07-14 | 南京聚拓化工科技有限公司 | Three-bed five-section detachable ammonia synthesis reactor and reduction method of catalyst |
| CN108774113A (en) * | 2018-06-20 | 2018-11-09 | 北京化工大学 | The process units and its production method of bisphenol-A |
| CN108774113B (en) * | 2018-06-20 | 2020-06-02 | 北京化工大学 | Bisphenol A production device and production method thereof |
| CN110681318A (en) * | 2018-07-06 | 2020-01-14 | 中国科学院大连化学物理研究所 | Axial flow fixed bed reactor with built-in modular heat collector |
| CN109054908A (en) * | 2018-09-30 | 2018-12-21 | 中石化宁波工程有限公司 | A kind of isothermal conversion process of mating coal gasification |
| CN109279573A (en) * | 2018-09-30 | 2019-01-29 | 中石化宁波工程有限公司 | A kind of isothermal conversion process of mating coal water slurry gasification |
| CN109279573B (en) * | 2018-09-30 | 2022-03-22 | 中石化宁波工程有限公司 | Isothermal transformation process matched with coal water slurry gasification |
| WO2020176395A1 (en) * | 2019-02-26 | 2020-09-03 | Chevron Phillips Chemical Company Lp | Bi-modal radial flow reactor |
| US11369931B2 (en) | 2019-02-26 | 2022-06-28 | Chevron Phillips Chemical Company, Lp | Bi-modal radial flow reactor |
| RU2778322C1 (en) * | 2019-02-26 | 2022-08-17 | ШЕВРОН ФИЛЛИПС КЕМИКАЛ КОМПАНИ ЭлПи | Bimodal reactor with radial flow |
| US11633707B2 (en) | 2019-02-26 | 2023-04-25 | Chevron Phillips Chemical Company, Lp | Bi-modal radial flow reactor |
| CN110327847A (en) * | 2019-08-07 | 2019-10-15 | 华东理工大学 | Radial Flow heat exchange type fixed bed catalytic reactor |
| CN110327847B (en) * | 2019-08-07 | 2024-01-26 | 华东理工大学 | Radial flow heat exchange type fixed bed catalytic reactor |
| CN110790225A (en) * | 2019-10-24 | 2020-02-14 | 中石化宁波工程有限公司 | Isothermal converter with double cooling systems |
| CN110876913A (en) * | 2019-11-05 | 2020-03-13 | 中国石油化工股份有限公司 | Radial bed isothermal transformation reaction device |
| CN113813882A (en) * | 2020-06-18 | 2021-12-21 | 南京聚拓化工科技有限公司 | Gas distribution piece and reactor |
| CN112221434A (en) * | 2020-09-27 | 2021-01-15 | 李忠 | Catalytic reactor utilizing self-heat-carrying and reaction heat of high-temperature raw material gas |
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