CN103808165A - Hydrogenation reaction effluent air cooler suitable for high chlorine raw oil processing - Google Patents
Hydrogenation reaction effluent air cooler suitable for high chlorine raw oil processing Download PDFInfo
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- CN103808165A CN103808165A CN201410056114.8A CN201410056114A CN103808165A CN 103808165 A CN103808165 A CN 103808165A CN 201410056114 A CN201410056114 A CN 201410056114A CN 103808165 A CN103808165 A CN 103808165A
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- bobbin carriage
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- tube bank
- twisted sheet
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Abstract
The invention discloses a hydrogenation reaction effluent air cooler suitable for high chlorine raw oil processing. A first channel and a second channel are communicated through a first row of pipe bundles and a second row of pipe bundles, the first row of pipe bundles and the second row of pipe bundles are arranged in parallel, the second channel is communicated with a third channel through a first hole plate, the third channel is communicated with a fourth channel through a third row of pipe bundles and a fourth row of pipe bundles, the third row of pipe bundles and the fourth row of pipe bundles are arranged in parallel, the fourth channel is communicated with a fifth channel through a second hole plate, and the fifth channel is communicated with a sixth channel through a fifth row of pipe bundles and a sixth row of pipe bundles, wherein the fifth row of pipe bundles and the sixth row of pipe bundles are arranged in parallel. Twisted pieces are fixedly connected in a first row of pipe bundle holes and a second row of pipe bundle holes. The first channel is connected with an inlet flange, the sixth channel is connected with an outlet channel, and heat dissipation pieces are arranged outside the six pipe bundles. According to the hydrogenation reaction effluent air cooler, the turbulent mixing effect of oil-gas-water three-phase flow of reaction effluent is strengthened, layered flow is avoided, crystallized ammonium salt particles crystallized in the hydrogenation reaction effluent in the processing process of high chlorine raw oil can be fully washed, ammonium salt deposition and under-deposit corrosion are avoided, and the safety running period and the service life of the hydrogenation reaction effluent air cooler are prolonged.
Description
Technical field
The present invention relates to hydrogenation reaction effluent air cooler, relate to specifically a kind of hydrogenation reaction effluent air cooler that is applicable to the processing of high-chlorine raw material oil.
Background technology
Petrochemical industry is mainstay of the national economy industry, and along with the further exhaustion of petroleum resources, the organic chloride content adding in the contained and exploitation of crude oil itself, transport process increases sharply, and oil refining apparatus burn into product quality has been brought and had a strong impact on.Wherein ammonium salt (NH
4cl) crystallization deposition and underdeposit corrosion are the most general failure phenomenons in high-chlorine raw material oil (chlorinity >1 ppm) process, and the stable operation of long period of device has been produced and had a strong impact on.Particularly hydrogenation reaction outflow air-cooler system (Reactor Effluent Air Coolers, be called for short REAC) in oil, gas, water multiphase are carried, because heterogeneous laminar flow very easily produces, ammonium salt crystallization stops up and underdeposit corrosion lost efficacy, and has become the significant obstacle of restriction hydrogenation plant long period safe operation.For example: in June, 2013, be subject to the diesel oil that affects tens of oil plants of China, gasoline, boat kerosene hydrogenation reaction effluent air cooler, the heat exchanger system of the processing of high fluorocarbon oil that the equipment tube bank leakage accident that ammonium salt sedimentation plugging and underdeposit corrosion cause has occurred, cause repeatedly unplanned shutdown, had a strong impact on the economic benefit of enterprise.
A large amount of inefficacy analyses of cases show: the ammonium salt sedimentation in hydrogenation REAC tube bank and the multiphase flow flow regime in underdeposit corrosion and tube bank are closely related.Because contain the more hetero atom such as chlorine, nitrogen in high-chlorine raw material oil, after hydrogenation reaction, the change of team becomes HCl and NH
3, enter in cold exchange device cooling procedure with multiphase flow, can in gas phase, there is crystallization reaction, the NH of generation
4cl can directly become solid crystals by vapor condensation, in the situation that lacking aqueous water, can stop up rapidly tube bank.The front two comb bundles of REAC have often been contained NH
4the temperature range of Cl crystallization is the deathtrap that ammonium chloride deposition and underdeposit corrosion the most easily occur.For avoid ammonium salt blockage tube bank conventionally need be in the water filling of REAC upstream the ammonium salt with wash crystallization.But because the physical property such as density, the viscosity difference of oil, gas, water three-phase flow makes its flow condition difference very large, enter the phenomenon that produces three-phase layering after air cooling is restrained under the impact of Action of Gravity Field, make the ammonium salt in gas phase can not be washed fully and be deposited on tube bank surface to the strong underdeposit corrosion of material production, in the time that ammonium salt accumulative total reaches a certain amount of, also can restrain clogging.
Therefore,, for the ammonium salt particle that guarantees crystallization in high-chlorine raw material oil process is fully washed, it is the key that solves such problem that the laminar flow of oil-gas-water three-phase is avoided in strengthening mixing.At present, the petrochemical industry modes of setting up distribution plate in air cooler inlet duct increases static mixer or bobbin carriage that adopt, the mixing of strengthening oil-gas-water three-phase more.Such way only can increase the balanced distribution of multiphase flow in each tube bank, after multiphase flow enters air cooling tube bank, Hydrodynamic turbulence can reduce rapidly, still there will be multiphase flow lamination, not only do not have the effect of good washing ammonium salt, and can bring the problems such as system pressure loss increase, the increase of device fabrication cost.
Summary of the invention
The object of the present invention is to provide a kind of hydrogenation reaction effluent air cooler that is applicable to the processing of high-chlorine raw material oil, effectively avoid ammonium salt sedimentation in multiphase flow course of conveying to stop up and underdeposit corrosion problem, significantly promote adaptive in poor oil process of hydrogenation air-cooler system, safe, stable, the long-term operation of extension device.
In order to achieve the above object, the technical solution used in the present invention is:
The present invention includes inlet flange, outlet(discharge) flange, the first bobbin carriage, the second bobbin carriage, the 3rd bobbin carriage, the 4th bobbin carriage, the 5th bobbin carriage, the 6th bobbin carriage, first row tube bank, second row tube bank, the 3rd comb bundle, the 4th comb bundle, the 5th comb bundle, the 6th comb bundle, the first orifice plate, the second orifice plate, the first twisted sheet and the second twisted sheet; The first bobbin carriage and the second bobbin carriage are connected by the first row tube bank and the second row tube bank that are arranged in juxtaposition, between the second bobbin carriage and the 3rd bobbin carriage, be connected by the first orifice plate, the 3rd bobbin carriage and the 4th bobbin carriage are connected by the 3rd comb bundle and the 4th comb bundle that are arranged in juxtaposition, between the 4th bobbin carriage and the 5th bobbin carriage, be connected by the second orifice plate, the 5th bobbin carriage and the 6th bobbin carriage are connected by the 5th comb bundle and the 6th comb bundle that are arranged in juxtaposition; Restrain in whole piece duct vertically in first row tube bank and second row, be all fixed with twisted sheet; The first bobbin carriage is connected with inlet flange, and the 6th bobbin carriage is connected with outlet(discharge) flange; The six comb bundle outsides that are positioned at outside six bobbin carriages are provided with radiating fin.
Described twisted sheet is take two as one group, and twisted sheet is fixed in first row tube bank and second row tube bank hole by that analogy; The structure of the first twisted sheet and the second twisted sheet be take with the perpendicular face of dull and stereotyped longest edge as initial surface is along 180 ° of formations of longest edge distortion, two joint faces that connect between the first twisted sheet two twisted sheets adjacent with the second twisted sheet are all installed in the mode of square crossing and by being welded and fixed.
The import and export end of described six comb bundles all adds the mode of outside weld by expanded joint and is connected with bobbin carriage separately.
The beneficial effect that the present invention has is:
A kind of hydrogenation reaction effluent air cooler that is applicable to the processing of high-chlorine raw material oil of the present invention, described high-chlorine raw material oil refers to that chlorinity is greater than the oil variety of 1 ppm.The present invention is by being embedded in the twisted sheet of interlaced arrangement at front two row's air cooler tube bundles, the turbulence effect between increase oil, gas, water three-phase flow, to reach the abundant mixing between multiphase flow, fully washs NH
4cl and NH
4the ammonium salts such as HS are avoided producing deposition and underdeposit corrosion, effectively extend the service life of hydrogenation reaction effluent air cooler.
Accompanying drawing explanation
Fig. 1 is structural principle schematic diagram of the present invention.
Fig. 2 is the partial enlarged drawing of embedded twisted sheet air cooling tube bank.
Fig. 3 is the not slab construction top view before distortion of twisted sheet.
Fig. 4 is the top view after twisted sheet distortion processing.
Fig. 5 is that between adjacent twisted sheet, vertical interlaced is arranged schematic three dimensional views.
In figure: 1, inlet flange; 2, outlet(discharge) flange; 3, the first bobbin carriage; 4, the second bobbin carriage; 5, the 3rd bobbin carriage; 6, the 4th bobbin carriage; 7, the 5th bobbin carriage; 8, the 6th bobbin carriage; 9, the first orifice plate; 10, the second orifice plate; 11, first row tube bank; 12, second row tube bank; 13, the 3rd comb bundle; 14, the 4th comb bundle; 15, the 5th comb bundle; 16, the 6th comb bundle; 17, the first twisted sheet; 18, the second twisted sheet; 19, the 3rd twisted sheet; 20, flat board.
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1 and Figure 2, the present invention includes inlet flange 1, outlet(discharge) flange 2, the first bobbin carriage 3, the second bobbin carriage 4, the 3rd bobbin carriage 5, the 4th bobbin carriage 6, the 5th bobbin carriage 7, the 6th bobbin carriage 8, first row tube bank 11, second row tube bank 12, the 3rd comb bundle 13, the 4th comb bundle 14, the 5th comb bundle 15, the 6th comb bundle 16, the first orifice plate 9, the second orifice plate 10, the first twisted sheet 17 and the second twisted sheet 18; The first bobbin carriage 3 and the second bobbin carriage 4 are connected by the first row tube bank 11 and the second row tube bank 12 that are arranged in juxtaposition, between the second bobbin carriage 4 and the 3rd bobbin carriage 5, be connected by the first orifice plate 9, the 3rd bobbin carriage 5 and the 4th bobbin carriage 6 are connected by the 3rd comb bundle 13 and the 4th comb bundle 14 that are arranged in juxtaposition, between the 4th bobbin carriage 6 and the 5th bobbin carriage 7, be connected by the second orifice plate 10, the 5th bobbin carriage 7 and the 6th bobbin carriage 8 are connected by the 5th comb bundle 15 and the 6th comb bundle 16 that are arranged in juxtaposition; In first row tube bank 11 and second row tube bank 12 whole piece duct vertically, be all fixed with twisted sheet; The first bobbin carriage 3 is connected with inlet flange 1, and the 6th bobbin carriage 8 is connected with outlet(discharge) flange 2; The six comb bundle outsides that are positioned at outside six bobbin carriages are provided with radiating fin.
As shown in Figure 2, described twisted sheet is take two as one group, and twisted sheet is fixed in first row tube bank 11 and restrains in 12 holes with second row by that analogy; The structure of the first twisted sheet 17 and the second twisted sheet 18 be take with the perpendicular face of dull and stereotyped 20 longest edges as initial surface is along 180 ° of formations of longest edge distortion, the first twisted sheet 17, the second twisted sheet 18 and the 3rd twisted sheet 19(repeat the first twisted sheet) two joint faces connecting between adjacent two twisted sheets all install in the mode of square crossing and by being welded and fixed.
The import and export end of described six comb bundles all adds the mode of outside weld by expanded joint and is connected with bobbin carriage separately.
As shown in Figure 3, be the not structure chart of the flat board 20 before distortion of twisted sheet, dull and stereotyped 20 physical dimension is controlled at length and is greater than width, the perpendicular bisector both sides by the long and wide plane forming along width.As shown in Figure 4, for the effect schematic diagram after twisted sheet distortion, the step of distortion moulding is: take with the perpendicular face of dull and stereotyped 20 longest edges as primary face, take the face of length of side AC and dull and stereotyped 20 thickness compositions as initial surface, 180 ° of formation of Yangjing plate 20 length direction AB distortions, twisted sheet after distortion moulding is along the perpendicular bisector symmetry of dull and stereotyped length, and perpendicular bisector is by 0 point in Fig. 3.
After Fig. 5 is twisted sheet machine-shaping, the schematic three dimensional views that square crossing is arranged, the first twisted sheet 17, the second twisted sheet 18 and the 3rd twisted sheet 19(repeat the first twisted sheet) between adjacent two twisted sheets all in the mode of 90 ° of square crossings of two joint faces by being welded and fixed.
Specific embodiment of the present invention is:
For the hydrogenation reaction effluent air cooler that is applicable to the processing of high-chlorine raw material oil, according to the difference of technique, system pressure, medium temperature, multiphase flow medium composition all can change.Common whole hydrogenation system pressure is about 11.2 MPa, and the multiphase flow medium temperature of inlet flange 1 is about 160 ℃, gaseous phase volume mark >80%, and water volume fraction < 5%, multiphase flow mixing velocity is about 5 m/s.According to NH
4cl and NH
4the physicochemical properties of HS are known, along with the reduction of multiphase flow medium temperature, NH
4cl and NH
4hS can be directly from gas phase condensation become solid phase, before inlet flange 1, due to temperature higher (>100 ℃), water mark is low and be mainly gas phase, in the situation that first row tube bank 11, second row tube bank 12 lack aqueous water, NH
4cl and NH
4hS crystallization deposition can stop up rapidly tube bank, causes bias current or underdeposit corrosion perforation.Therefore, detailed process of the present invention is that oil, gas, water multiphase body medium enter outside to carry out heat exchange with the first row tube bank 11 of radiating fin and second row tube bank 12 and outside air cooling after inlet flange 1 enters the first bobbin carriage 3, improve the turbulence effect between oil, gas, water three-phase flow through the twisted sheet group of the compositions such as the first twisted sheet 17, the second twisted sheet 18, the 3rd twisted sheet 19 simultaneously, realize the abundant mixing between oil gas water three phase flow, fully dissolve the ammonium salt (NH that washes away crystallization in cooling procedure
4hS) particle.Then flow out from outlet(discharge) flange 2 after completing heat transfer process by the second bobbin carriage 4, the 3rd bobbin carriage 5, the 3rd comb bundle 13 and the 4th comb bundle 14, the 4th bobbin carriage 6, the 5th bobbin carriage 7, the 5th comb bundle 15 and the 6th comb bundle 16, the 6th bobbin carriage 8 successively.
The above-mentioned specific embodiment is used for the present invention that explains, rather than limits the invention, and in the protection domain of spirit of the present invention and claim, any modification and change that the present invention is made, all fall into protection scope of the present invention.
Claims (3)
1. one kind is applicable to the hydrogenation reaction effluent air cooler of high-chlorine raw material oil processing, it is characterized in that: comprise inlet flange (1), outlet(discharge) flange (2), the first bobbin carriage (3), the second bobbin carriage (4), the 3rd bobbin carriage (5), the 4th bobbin carriage (6), the 5th bobbin carriage (7), the 6th bobbin carriage (8), first row tube bank (11), second row tube bank (12), the 3rd comb bundle (13), the 4th comb bundle (14), the 5th comb bundle (15), the 6th comb bundle (16), the first orifice plate (9), the second orifice plate (10), the first twisted sheet (17) and the second twisted sheet (18), the first bobbin carriage (3) and the second bobbin carriage (4) are connected by the first row tube bank (11) and the second row tube bank (12) that are arranged in juxtaposition, between the second bobbin carriage (4) and the 3rd bobbin carriage (5), be connected by the first orifice plate (9), the 3rd bobbin carriage (5) and the 4th bobbin carriage (6) are connected by the 3rd comb bundle (13) and the 4th comb bundle (14) that are arranged in juxtaposition, between the 4th bobbin carriage (6) and the 5th bobbin carriage (7), be connected by the second orifice plate (10), the 5th bobbin carriage (7) and the 6th bobbin carriage (8) are connected by the 5th comb bundle (15) and the 6th comb bundle (16) that are arranged in juxtaposition, in first row tube bank (11) and second row tube bank (12) whole piece duct vertically, be all fixed with twisted sheet, the first bobbin carriage (3) is connected with inlet flange (1), and the 6th bobbin carriage (8) is connected with outlet(discharge) flange (2), the six comb bundle outsides that are positioned at outside six bobbin carriages are provided with radiating fin.
2. a kind of hydrogenation reaction effluent air cooler that is applicable to the processing of high-chlorine raw material oil according to claim 1, it is characterized in that: described twisted sheet is take two as one group, and twisted sheet is fixed in first row tube bank (11) and second row tube bank (12) hole by that analogy; The structure of the first twisted sheet (17) and the second twisted sheet (18) be take with the perpendicular face of dull and stereotyped (20) longest edge as initial surface is along 180 ° of formations of longest edge distortion, two joint faces that connect between the first twisted sheet (17) two twisted sheets adjacent with the second twisted sheet (18) are all installed in the mode of square crossing and by being welded and fixed.
3. a kind of hydrogenation reaction effluent air cooler that is applicable to high-chlorine raw material oil processing according to claim 1, is characterized in that: the import and export end of described six comb bundles all adds the mode of outside weld by expanded joint and is connected with bobbin carriage separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410056114.8A CN103808165A (en) | 2014-02-19 | 2014-02-19 | Hydrogenation reaction effluent air cooler suitable for high chlorine raw oil processing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410056114.8A CN103808165A (en) | 2014-02-19 | 2014-02-19 | Hydrogenation reaction effluent air cooler suitable for high chlorine raw oil processing |
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| Publication Number | Publication Date |
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| CN103808165A true CN103808165A (en) | 2014-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410056114.8A Pending CN103808165A (en) | 2014-02-19 | 2014-02-19 | Hydrogenation reaction effluent air cooler suitable for high chlorine raw oil processing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017988A (en) * | 2016-06-30 | 2016-10-12 | 浙江特富锅炉有限公司 | Conduction oil sampler for boiler and sampling method |
| CN113188953A (en) * | 2021-04-30 | 2021-07-30 | 中国石油大学(北京) | Device for simulating flow of oil-gas-water mixture in elbow pipe under high temperature and high pressure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201302395Y (en) * | 2008-11-18 | 2009-09-02 | 中国石化扬子石油化工有限公司 | Hydrogenation-reaction outflow tube-bundle system of air cooler for machining chloric raw oil |
| CN103240015A (en) * | 2013-04-19 | 2013-08-14 | 浙江理工大学 | Twisted hole piece type oil-gas-water three-phase flow static mixer |
| CN203731895U (en) * | 2014-02-19 | 2014-07-23 | 浙江理工大学 | Hydrogenation reaction effluent air cooler suitable for high-chlorine raw oil processing |
-
2014
- 2014-02-19 CN CN201410056114.8A patent/CN103808165A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201302395Y (en) * | 2008-11-18 | 2009-09-02 | 中国石化扬子石油化工有限公司 | Hydrogenation-reaction outflow tube-bundle system of air cooler for machining chloric raw oil |
| CN103240015A (en) * | 2013-04-19 | 2013-08-14 | 浙江理工大学 | Twisted hole piece type oil-gas-water three-phase flow static mixer |
| CN203731895U (en) * | 2014-02-19 | 2014-07-23 | 浙江理工大学 | Hydrogenation reaction effluent air cooler suitable for high-chlorine raw oil processing |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017988A (en) * | 2016-06-30 | 2016-10-12 | 浙江特富锅炉有限公司 | Conduction oil sampler for boiler and sampling method |
| CN106017988B (en) * | 2016-06-30 | 2019-05-03 | 浙江特富锅炉有限公司 | A kind of thermally conductive garder of boiler |
| CN113188953A (en) * | 2021-04-30 | 2021-07-30 | 中国石油大学(北京) | Device for simulating flow of oil-gas-water mixture in elbow pipe under high temperature and high pressure |
| CN113188953B (en) * | 2021-04-30 | 2023-10-03 | 中国石油大学(北京) | Device for simulating flow of oil-gas-water mixture at high temperature and high pressure in bent pipe |
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Application publication date: 20140521 |