CN204051636U - The cold pipe reactor of circle row's formula upper and lower both sides shape header - Google Patents
The cold pipe reactor of circle row's formula upper and lower both sides shape header Download PDFInfo
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- CN204051636U CN204051636U CN201420503365.1U CN201420503365U CN204051636U CN 204051636 U CN204051636 U CN 204051636U CN 201420503365 U CN201420503365 U CN 201420503365U CN 204051636 U CN204051636 U CN 204051636U
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Abstract
The cold pipe reactor of a kind of circle row's formula upper and lower both sides shape header, it comprises reactor shell (8) and is arranged on cold pipe (6) wherein, upper header (13) and lower collecting box (4), the upper end of described cold pipe (6) is connected with upper header (13), lower end is connected with lower collecting box (4), it is characterized in that the square header ring (16) that described upper header (13) and lower collecting box (4) are square by multiple cross section and total square header (11) composition, the gap (17) loading for catalyst (7) and draw off is formed between each square header ring (16), each square header ring (16) is all connected with corresponding total square header (11), total square header (11) as the top of upper header (13) part is connected with cold gas outlet (10), total square header (11) as the bottom of lower collecting box (4) part is connected with cold gas entrance (1).The utility model structure is simply novel, and catalyst loading and unloading is convenient.
Description
Technical field
the utility model relates to a kind of chemical industry equipment, especially a kind of fixed bed catalytic reactor, specifically the cold pipe reactor of a kind of circle row's formula upper and lower both sides shape header.
Background technology
At present, the transmission carrying out heat is often needed in fixed bed catalytic reactor, thus develop the cold pipe reactor of built-in cooler tube bundle, namely remove heat by the cooling medium (as cold air) in cooler tube bundle, typical structure is exactly the cold pipe reactor of double tubesheet adverse current (Fig. 1).The outstanding feature of the cold pipe reactor of this double tubesheet, be that cold pipe is welded on plane tube sheet, welding condition is superior, and weld bond quality inspection is convenient and reliable, and welding quality is ensured.Its shortcoming is that catalyst loads from top and bottom draws off all more difficult, and especially all can not draw off from bottom, can only pour out from top, operate very difficult, this has just been difficult to carry out large-scale reactor.
For this reason, the cold pipe reactor improved further, then cancel flat tube sheet, use round tube instead, become circular tubular type header (see figure 2).Cooler tube bundle is all welded on round tube header, has enough gaps between each header tube, is convenient to the circulation of air-flow and passing of catalyst, so the handling Resolving probiems of catalyst.But owing to being that a large amount of cold pipe is welded on the curved surface tube wall of circular header, welding surroundings is poor, be difficult to flaw detection and inspection after welding, therefore welding quality is difficult to ensure, greatly limit the propagation and employment of this structure, especially on large-scale reactor.
Summary of the invention
The purpose of this utility model is for catalyst loading and unloading inconvenience during existing fixed bed reactors employing flat upper and lower header, adopts circular tubular type up and down case welding quality to be difficult to the problem ensured, design a kind of handling being both convenient to catalyst, the cold pipe reactor of round row's formula upper and lower both sides shape header of plate welding can be realized again.
The technical solution of the utility model is:
The cold pipe reactor of a kind of circle row's formula upper and lower both sides shape header, the cold pipe 6 that it comprises reactor shell 8 and is arranged on wherein, upper header 13 and lower collecting box 4, the upper end of described cold pipe 6 is connected with upper header 13, lower end is connected with lower collecting box 4, it is characterized in that the square header ring 16 that described upper header 13 and lower collecting box 4 are square by multiple cross section and total square header 11 form, the gap 17 loading for catalyst 7 and draw off is formed between each square header ring 16, each square header ring 16 is all connected with corresponding total square header 11, total square header 11 as the top of upper header 13 part is connected with cold gas outlet 10, total square header 11 as the bottom of lower collecting box 4 part is connected with cold gas entrance 1.
Described upper and lower total square header 11 is positioned at diametrically being connected with each corresponding square header ring 16 of reactor shell 8.
Described each square header ring 16 is at least connected with the cold pipe 6 of two rows.
The bottom of described reactor shell 8, the below of square header ring 16 are provided with sieve plate 3, sieve plate 3 are connected with catalyst and unload outlet 15.
The beneficial effects of the utility model:
Innovative point of the present utility model is to change large plane tube sheet header structure in the past and tubular header structure, adopts the header group new construction be made up of multiple square plate header.Owing to being square flat tube sheet header, making to restrain and have that welding surroundings is good, welding quality is high with welding of tube sheet, be convenient to check, be convenient to the advantage manufactured that maximizes, be far superior to tubular header; And on the other hand, adopt the structure of the square header group of multiple strip, such that reaction gas flow is all through up and down to react, catalyst can be drawn off by the space between header simultaneously, solves the problem that large-scale reactor catalyst is difficult to self-unloading.
Accompanying drawing explanation
Fig. 1 is the structural representation of the reactor of existing flat upper and lower header.
Fig. 2 is the structural representation of the reactor of the upper and lower header of existing circular pipe type.
Fig. 3 is structural representation of the present utility model.
Fig. 4 is the close-up schematic view of Fig. 3.
Fig. 5 is the A-A sectional view of Fig. 3.
In figure: 1 is cold gas entrance, 2 is reaction gas outlet, and 3 is sieve plate, 4 is lower collecting box, and 5 is lower collecting box plane tube sheet, and 6 is cold pipe, 7 is catalyst, and 8 is reactor shell, and 9 is manhole, 10 is cold gas outlet, and 11 is total square header, and 12 is reaction gas entrance, 13 is upper header, and 14 is upper header plane tube sheet, and 15 unload outlet for catalyst, 16 is square header ring, and 17 is gap.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further described.
As in Figure 3-5.
The cold pipe reactor of a kind of circle row's formula upper and lower both sides shape header, the cold pipe 6 that it comprises reactor shell 8 and is arranged on wherein, upper header 13 and lower collecting box 4, the upper end of described cold pipe 6 is connected with upper header 13, lower end is connected with lower collecting box 4, as shown in Figure 3, the square header ring 16 that described upper header 13 and lower collecting box 4 are square by multiple cross section and total square header 11 form, the gap 17 loading for catalyst 7 and draw off is formed between each square header ring 16, as shown in Figure 4, each square header ring 16 is all connected with corresponding total square header 11, total square header 11 is arranged on reactor cylinder diametrically, total square header 11 as the top of upper header 13 part is connected with cold gas outlet 10, total square header 11 as the bottom of lower collecting box 4 part is connected with cold gas entrance 1.Each square header ring 16 is at least connected with the cold pipe 6 of two rows, as shown in Figure 4.The bottom of described reactor shell 8, the below of square header ring 16 are provided with sieve plate 3, sieve plate 3 are connected with catalyst and unload outlet 15, as Fig. 3.
The utility model focus development new approaches of square header flat tube plate structure, the signal of its general structure is as Fig. 3, it is different from the large flat tube plate structure of traditional entirety completely, also be different from the structure of tubular header, reactor of the present utility model is formed primarily of reactor shell 8, upper and lower header 13,4 and cold pipe 6 and catalyst 7.The square header ring 16 that upper header 13, lower collecting box 4 are square by multiple cross section and the arrangement of total square header 11 form (as Fig. 5), have suitably large gap 17 unimpeded to ensure that catalyst draws off with air-flow between adjacent ring body, each square header ring 16 can connect ventilation by one (or branched) total square header 11.One of great advantage of square header is that its plane tube sheet 5,14 is connected with tube bank Welding Structure with adopting flat tube version the most reliably between cold pipe 6, guarantee that welded seal is good, linking intensity is high, the reliable structure of quality inspection, make it meet national standard and international standard completely.
Cold gas is entered by entrance 1, to be distributed to by cold air in each the square header ring 16 in lower collecting box 4 through total square header tube 11.Cold air is diverted to each cold pipe 6 again, from bottom to top through beds 7, is shifted out by reaction heat, and gas self is heated to the temperature that technique needs, then collects through upper header 13, and the total square header 11 through top gathers and flows out from outlet 10.Another road reacting gas then enters from upper entrance 12, enters catalyst layer through the gap between upper header 13, from top to bottom again through the gap 17 lower collecting box 4, goes out reactor through sieve plate 3 by outlet 2.
Catalyst loads from reactor head manhole 9 when initial start-up, and the gap through between upper header 13 is sprinkled into whole bed, until fill.When more catalyst changeout, then open and unload the gap that outlet 15 makes catalyst between lower collecting box 4 and flow out, until unsnatch.
The utility model does not relate to the part prior art that maybe can adopt all same as the prior art and is realized.
Claims (4)
1. the cold pipe reactor of round row's formula upper and lower both sides shape header, it comprises reactor shell (8) and is arranged on cold pipe (6) wherein, upper header (13) and lower collecting box (4), the upper end of described cold pipe (6) is connected with upper header (13), lower end is connected with lower collecting box (4), it is characterized in that square header ring (16) composition that described upper header (13) and lower collecting box (4) are square by multiple cross section, the gap (17) loading for catalyst (7) and draw off is formed between each square header ring (16), each square header ring (16) is all connected with corresponding total square header (11), total square header (11) as the top of upper header (13) part is connected with cold gas outlet (10), total square header (11) as the bottom of lower collecting box (4) part is connected with cold gas entrance (1).
2. the cold pipe reactor of round row's formula according to claim 1 upper and lower both sides shape header, is characterized in that described upper and lower total square header (11) is positioned at diametrically being connected with each corresponding square header ring (16) of reactor shell (8).
3. the cold pipe reactor of round row's formula according to claim 1 upper and lower both sides shape header, is characterized in that described each square header ring (16) is at least connected with the cold pipe of two row (6).
4. the cold pipe reactor of round row's formula according to claim 1 upper and lower both sides shape header, it is characterized in that the bottom of described reactor shell (8), the below of square header ring (16) are provided with sieve plate (3), sieve plate (3) is connected with catalyst and unloads outlet (15).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420503365.1U CN204051636U (en) | 2014-09-03 | 2014-09-03 | The cold pipe reactor of circle row's formula upper and lower both sides shape header |
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| CN201420503365.1U CN204051636U (en) | 2014-09-03 | 2014-09-03 | The cold pipe reactor of circle row's formula upper and lower both sides shape header |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106582455A (en) * | 2017-01-23 | 2017-04-26 | 南京敦先化工科技有限公司 | Straight pipe header coil pipe type reactor for waterway natural circulation |
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2014
- 2014-09-03 CN CN201420503365.1U patent/CN204051636U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106582455A (en) * | 2017-01-23 | 2017-04-26 | 南京敦先化工科技有限公司 | Straight pipe header coil pipe type reactor for waterway natural circulation |
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