CN110397851B - Heat-tracing type crude oil train unloading pry - Google Patents
Heat-tracing type crude oil train unloading pry Download PDFInfo
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- CN110397851B CN110397851B CN201910376915.5A CN201910376915A CN110397851B CN 110397851 B CN110397851 B CN 110397851B CN 201910376915 A CN201910376915 A CN 201910376915A CN 110397851 B CN110397851 B CN 110397851B
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- crude oil
- pipeline
- pipe
- oil return
- heat
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- 239000010779 crude oil Substances 0.000 title claims abstract description 105
- 238000002347 injection Methods 0.000 claims description 17
- 239000007924 injection Substances 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 abstract description 11
- 239000003921 oil Substances 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/086—Pipe-line systems for liquids or viscous products for explosives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/16—Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity
- F17D1/18—Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity by heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention discloses a heat tracing type crude oil train unloading pry, which comprises a middle heat exchange groove, wherein a plate type heat exchanger is arranged on one side of the middle heat exchange groove, a circulating pump is arranged between the middle heat exchange groove and the plate type heat exchanger, one end, close to the middle heat exchange groove, of the circulating pump is connected with a pipeline B, one end, close to the circulating pump, of the middle heat exchange groove is connected with a pipeline C, the upper end of the pipeline C is connected with a crude oil return pipe, the top end of the crude oil return pipe is provided with a top crude oil return port, one side of the top crude oil return port is connected with a crude oil return pipe, the bottom of the crude oil return pipe is provided with a bottom crude oil: the heat tracing type crude oil train unloading pry has the advantages that the time is saved under the extremely cold condition, the working efficiency is increased, and the problem of crude oil viscosity under the extremely cold condition is solved by circularly heating the upper part of the heat tracing type crude oil train unloading pry and the unloading oil filling pipe, circularly heating the bottom part of the heat tracing type crude oil train unloading pry and circularly heating all equipment of the whole pipeline.
Description
Technical Field
The invention belongs to the technical field of crude oil heating, and particularly relates to a heat tracing type crude oil train unloading pry.
Background art:
at present, crude oil is transported by water routes, railways, roads and pipelines. The highway transportation cost is high, the highway transportation is suitable for a small amount of short-distance transportation, namely the waterway transportation is more economical, but the highway transportation is only suitable for coastal areas and areas with developed waterways, namely inland areas, and the inland areas are mainly transported by railways or pipelines. Therefore, rail handling is often involved in the design of inland oil reservoirs. Often under extremely cold condition, crude oil is not very good at the mobility in the pipeline, consequently need heat the inside crude oil of train tank car, but at present home and abroad is rather few to this aspect of out-of-service solution technique, consumes a large amount of manual works to operate mostly, very big increase the cost.
The invention content is as follows:
the invention aims to solve the problems and provide a heat tracing type crude oil train unloading pry, which solves the existing problems.
In order to solve the above problems, the present invention provides a technical solution:
the heat tracing type crude oil train unloading pry comprises a middle heat exchange groove, a plate type heat exchanger is arranged on one side of the middle heat exchange groove, a circulating pump is arranged between the middle heat exchange groove and the plate type heat exchanger, one end, close to the middle heat exchange groove, of the circulating pump is connected with a pipeline B, one end, close to the circulating pump, of the middle heat exchange groove is connected with a pipeline C, a crude oil return pipe is connected to the upper end of the pipeline C, a top crude oil return port is arranged at the top end of the crude oil return pipe, a crude oil return pipe is connected to one side of the top crude oil return port, a bottom crude oil return port is arranged at the bottom of the crude oil return pipe, a steam tracing pipe is connected to one end of the pipeline C, a top steam tracing inlet is arranged at the top end of the steam tracing pipe, and the upper end of the crude oil injection pipe is provided with a top crude oil injection orifice, one side of the upper end of the plate type heat exchanger is connected with a second connecting pipe, one end of the second connecting pipe, which is far away from the plate type heat exchanger, is provided with a steam inlet, a crude oil return pipe is connected with the crude oil injection pipe through a third connecting pipe, the lower end of the third connecting pipe is connected with a crude oil inlet and collection tank, and the lower end of the other side of the third connecting pipe is connected with a bottom hot.
Preferably, a fourth ball valve and a fifth ball valve are arranged below the crude oil return port at the top and on the crude oil return pipe, and the crude oil return pipe between the fourth ball valve and the fifth ball valve is connected with one side of the upper end of the middle heat exchange tank through a first connecting pipe.
Preferably, the pipeline C is provided with a ball valve, and the steam tracing pipe is connected with the pipeline C through the ball valve.
Preferably, the second connecting pipe is respectively connected with the pipeline C and the intermediate heat exchange groove through a steam guide pipe.
Preferably, the pipeline B and the pipeline C are communicated with each other, and the circulating pump is connected with the pipeline C through the pipeline B.
Preferably, the first connecting pipe is provided with a second ball valve.
Preferably, a third ball valve is arranged on the crude oil injection pipe.
Preferably, a filter is arranged on the heat exchanger inlet pipeline A.
The invention has the beneficial effects that: the heat tracing type crude oil train unloading pry adopts a novel heat tracing technology, steam heat tracing is adopted for main heat tracing at the temperature of 152 ℃, an electric heat tracing technology is adopted for auxiliary heat tracing, the steam heat tracing heats a heat exchanger, upper part circulation heating and a middle groove, and 220V auxiliary heat tracing heats a pipeline and a circulating pump. The problem that crude oil flows in a pipeline is solved under an extremely cold condition, and the top heating device and the bottom heating device are adopted in the train tank car, so that the cyclic heating of the crude oil in the train tank car is better realized, the working efficiency is improved, the manual operation quantity is saved, and the cost is reduced.
Description of the drawings:
for ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the process flow structure of the present invention.
In the figure: 1. an intermediate heat exchange tank; 2. a plate heat exchanger; 3. a circulation pump; 4. a steam inlet; 5. a first ball valve; 6. a filter; 7. a heat exchanger inlet conduit A; 8. a bottom crude oil return port; 9. a bottom hot crude oil injection port; 10. a second ball valve; 11. a third ball valve; 12. a top crude oil injection port; 13. a top crude oil return port; 14. a fourth ball valve; 15. a fifth ball valve; 16. a steam conduit; 17. a top steam tracing inlet; 18. crude oil enters a liquid collecting tank; 19. a pipeline B; 20. and a pipeline C.
The specific implementation mode is as follows:
as shown in fig. 1-2, the following technical solutions are adopted in the present embodiment: the heat tracing type crude oil train unloading pry comprises a middle heat exchange tank 1, a plate type heat exchanger 2 is arranged on one side of the middle heat exchange tank 1, a circulating pump 3 is arranged between the middle heat exchange tank 1 and the plate type heat exchanger 2, one end, close to the middle heat exchange tank 1, of the circulating pump 3 is connected with a pipeline B19, one end, close to the circulating pump 3, of the middle heat exchange tank 1 is connected with a pipeline C20, the upper end of the pipeline C20 is connected with a crude oil return pipe, the top end of the crude oil return pipe is provided with a top crude oil return port 13, one side of the top crude oil return port 13 is connected with a crude oil return pipe, the bottom of the crude oil return pipe is provided with a bottom crude oil return port 8, one end of the pipeline C20 is externally connected with a steam tracing pipe, the top end of the steam tracing pipe is provided with a top steam tracing inlet 17, a heat exchanger inlet pipeline A, and the upper end of the crude oil injection pipe is provided with a top crude oil injection port 12, one side of the upper end of the plate type heat exchanger 2 is connected with a second connecting pipe, one end of the second connecting pipe, which is far away from the plate type heat exchanger 2, is provided with a steam inlet 4, a crude oil return pipe is connected with the crude oil injection pipe through a third connecting pipe, the lower end of the third connecting pipe is connected with a crude oil inlet and collection tank 18, and the lower end of the other side of the third connecting pipe is connected with a bottom hot crude.
Wherein, top crude oil backward flow mouth 13 below and be equipped with No. four ball valves 14 and No. five ball valves 15 on the crude oil back flow, the crude oil back flow between No. four ball valves 14 and No. five ball valves 15 is connected with 1 upper end one side in middle heat transfer groove through a connecting pipe, by circulating pump 3's continuous work, heats the train tank wagon inside through bottom hot crude oil jet orifice 9 flange through bottom injection oil filling riser, opens No. two ball valves 10, again by bottom jacket formula oil filling riser through bottom crude oil backward flow mouth 8 gravity flow entering middle groove. The circulation is carried out, and the bottom of the crude oil in the train tank car is heated.
Wherein, be equipped with ball valve 5 on the pipeline C20, just steam tracing pipe is connected with pipeline C20 through ball valve 5.
The second connecting pipe is connected with a pipeline C20 and the intermediate heat exchange tank 1 through a steam conduit 16, steam at the temperature of 152 ℃ is input into the intermediate heat exchange tank 1 through the steam conduit 16, and the intermediate heat exchange tank 1 is heated secondarily.
Wherein the pipe B19 and the pipe C20 are communicated with each other, and the circulation pump 3 is connected to the pipe C20 through a pipe B19.
Wherein, be equipped with No. two ball valves 10 on the connecting pipe.
The crude oil injection pipe is provided with a third ball valve 11, and a manual valve can be changed into a pneumatic valve controlled by a PLC (programmable logic controller) like the first ball valve 5, the second ball valve 10, the fourth ball valve 14 and the fifth ball valve 15, so that a better control effect is achieved, and the working efficiency is increased.
Wherein, the heat exchanger inlet pipeline A7 is provided with a filter 6 to increase the filtering effect.
Specifically, the method comprises the following steps: 1. this equipment is equipped with steam heat tracing, two kinds of heat tracing device of electric heat tracing, crude oil is injected into middle groove heat transfer groove 1 by the collecting tank on the spot, 4 steam with 152 degrees centigrade through steam inlet, input to middle heat transfer groove 1, carry out the secondary heating with middle heat transfer groove 1, open 5 hot medium crude oil of ball valve and get into circulating pump 3 through flowing automatically, open circulating pump 3, heat exchanger inlet pipeline A, pipeline B and pipeline C liquid carry out the cubic through the electric heat tracing and heat inflow plate heat exchanger 2, plate heat exchanger 2 carries out the cubic through 4 pipeline steam heating of steam inlet, carry out the cubic to the inside crude oil pipeline of heat exchanger and heat, by circulating pump 3's continuous work, through the 9 flanges of bottom heat crude oil injection mouth through bottom injection crane pipe to the inside heating of train tank wagon. And opening a second ball valve 10, and automatically flowing into the middle tank from a bottom jacketed crane pipe through a bottom crude oil return port 8, so as to circularly heat the bottom of crude oil in the train tank car.
2. The heat circulation of the crude oil is carried out by a circulating pump 3, the crude oil is injected into an intermediate tank from a liquid collecting tank on site, the steam with the temperature of 152 ℃ is input into an intermediate heat exchange tank 1 through a steam inlet 4, the intermediate heat exchange tank 1 is heated for the second time, the heat medium crude oil enters the circulating pump 3 through self-flowing by opening a ball valve 5, the circulating pump 3 is started, the liquid of an inlet pipeline A, a pipeline B and a pipeline C of the heat exchanger is heated for the third time through electric tracing and flows into a plate heat exchanger 2, the heat exchanger is heated through the steam of a pipeline 4 of the steam inlet and heats a crude oil pipeline in the heat exchanger for the fourth time, the ball valve 11 is opened by the continuous work of the circulating pump 3, the crude oil jet pipe exchanges heat with the crude oil on the top of the train tank car through a crude oil jet orifice 12 on the top, the ball valve 14 and the ball, the crude oil enters the settling liquid collecting tank through a flange of the liquid collecting tank 18 and a pipeline.
While there have been shown and described what are at present considered to be the fundamental principles of the invention and its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (8)
1. The heat tracing type crude oil train unloading pry comprises a middle heat exchange tank (1) and is characterized in that a plate type heat exchanger (2) is arranged on one side of the middle heat exchange tank (1), a circulating pump (3) is arranged between the middle heat exchange tank (1) and the plate type heat exchanger (2), one end, close to the middle heat exchange tank (1), of the circulating pump (3) is connected with a pipeline B (19), one end, close to the circulating pump (3), of the middle heat exchange tank (1) is connected with a pipeline C (20), the upper end of the pipeline C (20) is connected with a crude oil return pipe, the top end of the crude oil return pipe is provided with a top crude oil return port (13), one side of the top crude oil return port (13) is connected with a crude oil return pipe, the bottom of the crude oil return pipe is provided with a bottom crude oil return port (8), one end of the pipeline C (20), be connected with heat exchanger inlet pipeline A (7) between circulating pump (3) upper end and plate heat exchanger (2), heat exchanger inlet pipeline A (7) one side just is connected with the crude oil injection pipe with plate heat exchanger (2), and this crude oil injection pipe upper end is equipped with top crude oil jet (12), plate heat exchanger (2) upper end one side is connected with No. two connecting pipes, the one end of keeping away from in plate heat exchanger (2) of No. two connecting pipes is equipped with steam inlet (4), the crude oil back flow is connected through No. three connecting pipes with the crude oil injection pipe, No. three connecting pipe lower extreme is connected with crude oil and advances collecting tank (18), No. three connecting pipe opposite side lower extreme is connected with bottom hot crude oil jet (9).
2. The heat tracing type crude oil train unloading sled of claim 1, wherein: the top crude oil return port (13) below is equipped with No. four ball valves (14) and No. five ball valves (15) on the crude oil return pipe, the crude oil return pipe between No. four ball valves (14) and No. five ball valves (15) is connected with middle heat exchange tank (1) upper end one side through a connecting pipe.
3. The heat tracing type crude oil train unloading sled of claim 1, wherein: the pipeline C (20) is provided with a ball valve (5), and the steam heat tracing pipe is connected with the pipeline C (20) through the ball valve (5).
4. The heat tracing type crude oil train unloading sled of claim 1, wherein: the second connecting pipe is respectively connected with a pipeline C (20) and the intermediate heat exchange tank (1) through a steam guide pipe (16).
5. The heat tracing type crude oil train unloading sled of claim 1, wherein: the pipeline B (19) is communicated with the pipeline C (20), and the circulating pump (3) is connected with the pipeline C (20) through the pipeline B (19).
6. The heat tracing type crude oil train unloading sled of claim 2, wherein: and a second ball valve (10) is arranged on the first connecting pipe.
7. The heat tracing type crude oil train unloading sled of claim 1, wherein: and a third ball valve (11) is arranged on the crude oil injection pipe.
8. The heat tracing type crude oil train unloading sled of claim 1, wherein: and a filter (6) is arranged on the heat exchanger inlet pipeline A (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910376915.5A CN110397851B (en) | 2019-05-04 | 2019-05-04 | Heat-tracing type crude oil train unloading pry |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910376915.5A CN110397851B (en) | 2019-05-04 | 2019-05-04 | Heat-tracing type crude oil train unloading pry |
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| CN110397851A CN110397851A (en) | 2019-11-01 |
| CN110397851B true CN110397851B (en) | 2021-02-09 |
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| CN112777557B (en) * | 2019-11-06 | 2022-09-30 | 中国石油化工股份有限公司 | Oil gas treatment system and method for crude oil unloading |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2208160Y (en) * | 1994-02-23 | 1995-09-20 | 苏香瑞 | Freeze and frost preventing device for liquefied petroleum gas |
| CN100398748C (en) * | 2002-10-25 | 2008-07-02 | 张友良 | Environment protection automatic heating asphalt vehicle |
| JP4057034B2 (en) * | 2005-04-19 | 2008-03-05 | 株式会社神戸製鋼所 | Regenerative heat supply device and regenerative heat supply system using the same |
| CN101532726A (en) * | 2009-04-07 | 2009-09-16 | 济南市供水设备厂有限公司 | Quick-discharging and heating device for vehicle-mounted oil tank |
| CN202673490U (en) * | 2012-07-16 | 2013-01-16 | 哈尔滨威克技术开发公司 | Diesel oil heating system |
| CN104966536B (en) * | 2015-07-14 | 2017-06-20 | 西安交通大学 | A kind of high temperature refrigerant heat transfer experiments system and method with conduction oil as hot fluid |
| CN208038029U (en) * | 2018-01-18 | 2018-11-02 | 山东普利龙压力容器有限公司 | A kind of upper interface formula oil product storage tank displacement heating unloading unit |
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