CN103849431A - Catalytic cracking device for ensuring safe operation - Google Patents
Catalytic cracking device for ensuring safe operation Download PDFInfo
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- CN103849431A CN103849431A CN201310081927.8A CN201310081927A CN103849431A CN 103849431 A CN103849431 A CN 103849431A CN 201310081927 A CN201310081927 A CN 201310081927A CN 103849431 A CN103849431 A CN 103849431A
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Abstract
This invention relates to a catalytic cracking device for ensuring safe operation. The catalytic cracking device mainly comprises a catalytic device settler/ regenerator, a reaction oil gas pipeline top platform, a reaction oil gas pipeline vertical section, a reaction oil gas pipeline horizontal section, and a catalytic device fractionating tower, wherein the reaction oil gas pipeline vertical section, the catalytic device settler/ regenerator and the catalytic device fractionating tower are arranged on the same axis, and the whole reaction oil gas pipeline is a plane pipe system; only are 3 elbows arranged on the reaction oil gas pipeline; the reaction oil gas pipeline vertical section has a lining structure, namely a cold wall structure design, of thermal insulation anti-abrasion concrete in the pipeline; while the reaction oil gas pipeline horizontal section is made from a 12 CrMo alloy material, namely a hot wall structure design. By adopting the technical solution, the safe and stable operation of the reaction oil gas pipeline in a long cycle can be effectively guaranteed, the pressure drop and stress level of the reaction oil gas pipeline are reduced, and meanwhile the one-time investment and operation cost of the device are reduced.
Description
Technical field
The present invention relates to a kind of catalytic cracking unit of crude oil manufacture field, particularly relate to the catalytic cracking unit of important safe, steady, long-term operation in the secondary deep processing of a kind of petroleum refining industry.
Background technology
Catalytic cracking unit is the most important a kind of secondary deep processing technology device in refinery, and reaction oil gas pipeline is that in this device, settling vessel, to the piping of delivery technology material between separation column, is the throat of whole complete processing.Simultaneously, because reaction oil gas pipe diameter is large and be at high temperature to operate, ensure reaction oil gas pipe safety, steady, long-term operation, the pressure drop and the temperature drop that reduce pressure-reducing line for oil-transferring are the keys of reaction oil gas piping design and even the advanced degree of catalytic cracking unit.
The reaction oil gas line of existing catalytic cracking unit is to adopt whole steel alloy hot wall pipelines, want to absorb the thermal walking of 60 meters of high vertical pipeline sections nearly, it is curved that horizontal pipe just must lay out " π " to equipment outside, and first do like this compared with the present invention is that the raising of material becomes steel alloy from carbon steel; Next is that duct length is due to curved lengthening of increase level " π "; Be again this structure because increase level " π " is curved, make its resistance that increase, easily coking and elbow increase are unfavorable for to coke cleaning.
Because the defect that above-mentioned existing catalytic cracking unit exists, practical experience and the expertise of the inventor based on being engaged in this type of product design manufacture and enriching for many years, and the utilization of cooperation scientific principle, actively research and innovation in addition, to founding a kind of catalytic cracking unit of the running that newly really ensures safety, can improve general existing catalytic cracking unit, make it have more practicality.Through constantly research, design, and after repeatedly studying sample and improving, finally create the present invention who has practical value.
Summary of the invention
For solving the problems of the technologies described above, the object of the invention is to, overcome the defect that existing catalytic cracking unit exists, and a kind of catalytic cracking unit of guaranteeing safe handling is proposed, technical problem to be solved is to ensure reaction oil gas pipe safety, steady, long-term operation, thereby is more suitable for practicality.
The object of the invention to solve the technical problems adopts following technical scheme to realize.A kind of catalytic cracking unit of guaranteeing safe handling proposing according to the present invention, mainly comprises: catalytic unit settling vessel/revivifier, reaction oil gas pipeline top platform, the vertical pipeline section of reaction oil gas pipeline, reaction oil gas pipe level pipeline section, catalytic unit separation column; The wherein upper end of catalytic unit settling vessel/revivifier and reaction oil gas pipeline top platform
vertically-guidedconnect, the upper end of the vertical pipeline section of reaction oil gas pipeline is fixedly connected with reaction oil gas pipeline top platform, and the lower end of the vertical pipeline section of reaction oil gas pipeline is fixedly connected with reaction oil gas pipe level pipeline section, catalytic unit separation column and reaction oil gas pipe level pipeline section
adopt flangeconnect; The vertical pipeline section of reaction oil gas pipeline and catalytic unit settling vessel/revivifier, catalytic unit separation column three are on same axis, and whole reaction oil gas pipeline is plane piping.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
The aforesaid catalytic cracking unit of guaranteeing safe handling, also comprises: catalytic unit settling vessel top platform, reaction oil gas conduit upper guiding trestle, reaction oil gas pipeline spring support bracket, reaction oil gas pipeline shock bracket, the cold wall hot wall of reaction oil gas pipeline transition pipe nipple, reaction oil gas pipeline enter separation column front spring support, wherein catalytic unit settling vessel top platform is positioned at the upper end of catalytic unit settling vessel/revivifier, reaction oil gas conduit upper guiding trestle is fixedly connected with catalytic unit settling vessel/revivifier, reaction oil gas pipeline spring support bracket is fixedly connected with catalytic unit settling vessel/revivifier, reaction oil gas pipeline shock bracket is fixedly connected with catalytic unit settling vessel/revivifier, the lower end of the vertical pipeline section of the cold wall hot wall of reaction oil gas pipeline transition pipe nipple ligation oil and gas pipes and one end of reaction oil gas pipe level pipeline section, reaction oil gas pipeline enters the separation column front spring support horizontal pipeline section of ligation oil and gas pipes and catalytic unit separation column.
The aforesaid catalytic cracking unit of guaranteeing safe handling, the elbow on wherein said reaction oil gas pipeline only has 3.
The aforesaid catalytic cracking unit of guaranteeing safe handling, it is cold wall construction design that the wherein said vertical pipeline section of reaction oil gas pipeline also adopts pipe lining heat insulation and wear resistance concrete lining structure, and it is hot-wall structure design that reaction oil gas pipe level pipeline section adopts 12CrMo alloy steel material.
The present invention compared with prior art have the reaction oil gas pipe safety of guarantee, steadily, advantage and the beneficial effect such as long-term operation.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technique means of the present invention, and can be implemented according to the content of specification sheets, and for above and other object of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Brief description of the drawings
Fig. 1 is reaction oil gas piping arrangement plan figure.
Fig. 2 is the vertical detail drawing of reaction oil gas piping arrangement.
[main element nomenclature]
1: catalytic unit settling vessel/revivifier
2: catalytic unit settling vessel top platform
3: reaction oil gas pipeline top platform
4: reaction oil gas conduit upper guiding trestle
5: the vertical pipeline section of reaction oil gas pipeline
6: reaction oil gas pipeline spring support bracket
7: reaction oil gas pipeline shock bracket
8: the cold wall hot wall of reaction oil gas pipeline transition pipe nipple
9: reaction oil gas pipe level pipeline section
10: reaction oil gas pipeline enters separation column front spring support
11: catalytic unit separation column
Embodiment
Technique means and effect of taking for reaching predetermined goal of the invention for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to its embodiment of catalytic cracking unit, step, feature and effect thereof of proposing really to ensure safety and turn round according to the present invention, be described in detail as follows.
The temperature of reaction oil gas pipeline internal medium is generally at 505 DEG C-510 DEG C, and pressure is 0.22MPa.Be set up and be conventionally divided into vertical pipeline section and horizontal pipeline section at cloth.
Refer to shown in Fig. 1, Fig. 2.A catalytic cracking unit of guaranteeing safe handling, it mainly comprises: catalytic unit settling vessel/revivifier 1, reaction oil gas pipeline top platform 3, the vertical pipeline section 5 of reaction oil gas pipeline, reaction oil gas pipe level pipeline section 9, catalytic unit separation column 11; Wherein the upper end of catalytic unit settling vessel/revivifier 1 is connected with reaction oil gas pipeline top platform 3 vertically-guideds, the upper end of the vertical pipeline section 5 of reaction oil gas pipeline is fixedly connected with reaction oil gas pipeline top platform 3, the lower end of the vertical pipeline section 5 of reaction oil gas pipeline is fixedly connected with reaction oil gas pipe level pipeline section 9, and catalytic unit separation column 11 adopts flange to be connected with reaction oil gas pipe level pipeline section 9.
A kind of catalytic cracking unit of guaranteeing safe handling also comprises: catalytic unit settling vessel top platform 2, reaction oil gas conduit upper guiding trestle 4, reaction oil gas pipeline spring support bracket 6, reaction oil gas pipeline shock bracket 7, the cold wall hot wall of reaction oil gas pipeline transition pipe nipple 8, reaction oil gas pipeline enter separation column front spring support 10, wherein catalytic unit settling vessel top platform 2 is positioned at the upper end of catalytic unit settling vessel/revivifier 1, reaction oil gas conduit upper guiding trestle 4 is fixedly connected with catalytic unit settling vessel/revivifier 1, reaction oil gas pipeline spring support bracket 6 is fixedly connected with catalytic unit settling vessel/revivifier 1, reaction oil gas pipeline shock bracket 7 is fixedly connected with catalytic unit settling vessel/revivifier 1, the lower end of the vertical pipeline section 5 of the cold wall hot wall of reaction oil gas pipeline transition pipe nipple 8 ligation oil and gas pipes and one end of reaction oil gas pipe level pipeline section 9, reaction oil gas pipeline enters the separation column front spring support horizontal pipeline section 9 of 10 ligation oil and gas pipes and catalytic unit separation column 11.
In the time carrying out equipment floor plan, first to accomplish vertical reaction oil gas pipeline pipeline section 5 to be arranged on same axis with catalytic unit settling vessel/revivifier 1, catalytic unit separation column 11 threes, so not only can make this pipeline section the shortest, reduce investment outlay, can also make separation column mouthpiece stressed in optimum position simultaneously, almost there is no horizontal side outward force, to guarantee this piping long-term operation.
Want to reduce pressure drop, the temperature drop of piping, just must make as far as possible in Fig. 1, Fig. 2 pipeline section the shortest, in piping, bend pipe is minimum, but meets again the stress distribution requirement of whole piping simultaneously, facts have proved that this device is effective.
According to the layout of Fig. 1, Fig. 2, key problem is that reaction oil gas pipeline is different from catalytic unit settling vessel/revivifier 1, catalytic unit separation column 11 threes' thermal expansion amount.700 DEG C of left and right of regenerator of catalytic unit service temperature, its inner insulating and wearing-resistant lining that uses, in order to make reaction oil gas line and catalytic unit settling vessel/revivifier 1 thermal expansion amount basic identical, so the vertical pipeline section 5 of reaction oil gas pipeline also adopts insulating and wearing-resistant lining structure, it is hot-wall structure design that reaction oil gas pipe level pipeline section 9 adopts 12CrMo alloy steel material, although these reaction oil gas pipe level pipeline section 9 heat amounts of rising are larger, but the vertical pipeline section 5 of reaction oil gas pipeline is longer, can absorb this section of thermal walking completely, this section adopts hot-wall structure in addition, coke cleaning work after operation for some time is become than being easier to.This structure is than all adopting hot-wall structures, and the overhanging compensation of horizontal pipeline section " π " kinking structure wants superior many.
Can greatly increase the security of reaction oil gas pipeline and even whole catalytic cracking unit by above several measures.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, but not in order to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solution of the present invention, foundation technical spirit of the present invention is to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (4)
1. guarantee a catalytic cracking unit for safe handling, it is characterized in that mainly comprising: catalytic unit settling vessel/revivifier (1), reaction oil gas pipeline top platform (3), the vertical pipeline section of reaction oil gas pipeline (5), reaction oil gas pipe level pipeline section (9), catalytic unit separation column (11);
Wherein the upper end of catalytic unit settling vessel/revivifier (1) is connected with reaction oil gas pipeline top platform (3) vertically-guided, the upper end of the vertical pipeline section of reaction oil gas pipeline (5) is fixedly connected with reaction oil gas pipeline top platform (3), the lower end of the vertical pipeline section of reaction oil gas pipeline (5) is fixedly connected with reaction oil gas pipe level pipeline section (9), and catalytic unit separation column (11) adopts flange to be connected with reaction oil gas pipe level pipeline section (9);
The vertical pipeline section of reaction oil gas pipeline (5) is with catalytic unit settling vessel/revivifier (1), catalytic unit separation column (11) three on same axis, and whole reaction oil gas pipeline is plane piping.
2. the catalytic cracking unit of guaranteeing safe handling according to claim 1, characterized by further comprising: catalytic unit settling vessel top platform (2), reaction oil gas conduit upper guiding trestle (4), reaction oil gas pipeline spring support bracket (6), reaction oil gas pipeline shock bracket (7), the cold wall hot wall of reaction oil gas pipeline transition pipe nipple (8), reaction oil gas pipeline enter separation column front spring support (10), wherein catalytic unit settling vessel top platform (2) is positioned at the upper end of catalytic unit settling vessel/revivifier (1), reaction oil gas conduit upper guiding trestle (4) is fixedly connected with catalytic unit settling vessel/revivifier (1), reaction oil gas pipeline spring support bracket (6) is fixedly connected with catalytic unit settling vessel/revivifier (1), reaction oil gas pipeline shock bracket (7) is fixedly connected with catalytic unit settling vessel/revivifier (1), one end of the lower end of the vertical pipeline section of the cold wall hot wall of reaction oil gas pipeline transition pipe nipple (8) ligation oil and gas pipes (5) and reaction oil gas pipe level pipeline section (9), reaction oil gas pipeline enters the horizontal pipeline section of separation column front spring support (10) ligation oil and gas pipes (9) and catalytic unit separation column (11).
3. the catalytic cracking unit of guaranteeing safe handling according to claim 1, is characterized in that the elbow on wherein said reaction oil gas pipeline only has 3.
4. the catalytic cracking unit of guaranteeing safe handling according to claim 1, it is characterized in that it is cold wall construction design that the wherein said vertical pipeline section of reaction oil gas pipeline also adopts pipe lining heat insulation and wear resistance concrete lining structure, it is hot-wall structure design that reaction oil gas pipe level pipeline section adopts 12CrMo alloy steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310081927.8A CN103849431A (en) | 2013-03-14 | 2013-03-14 | Catalytic cracking device for ensuring safe operation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310081927.8A CN103849431A (en) | 2013-03-14 | 2013-03-14 | Catalytic cracking device for ensuring safe operation |
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| CN103849431A true CN103849431A (en) | 2014-06-11 |
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| CN201310081927.8A Pending CN103849431A (en) | 2013-03-14 | 2013-03-14 | Catalytic cracking device for ensuring safe operation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005846A (en) * | 2019-04-09 | 2019-07-12 | 北京石油化工工程有限公司 | Water sealed tank |
-
2013
- 2013-03-14 CN CN201310081927.8A patent/CN103849431A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 李建锋: "大型催化装置的反应油气线设计", 《中国科技纵横》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005846A (en) * | 2019-04-09 | 2019-07-12 | 北京石油化工工程有限公司 | Water sealed tank |
| CN110005846B (en) * | 2019-04-09 | 2024-04-30 | 北京石油化工工程有限公司 | Water sealed tank |
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Application publication date: 20140611 |