CN206051955U - A kind of energy-saving system of delayed coking unit - Google Patents
A kind of energy-saving system of delayed coking unit Download PDFInfo
- Publication number
- CN206051955U CN206051955U CN201620902612.4U CN201620902612U CN206051955U CN 206051955 U CN206051955 U CN 206051955U CN 201620902612 U CN201620902612 U CN 201620902612U CN 206051955 U CN206051955 U CN 206051955U
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- China
- Prior art keywords
- steam
- tower
- energy
- delayed coking
- heat exchanger
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- 238000004939 coking Methods 0.000 title claims abstract description 25
- 230000003111 delayed effect Effects 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 239000000047 product Substances 0.000 abstract description 15
- 239000000463 material Substances 0.000 abstract description 6
- 238000011084 recovery Methods 0.000 abstract description 4
- 239000006227 byproduct Substances 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 27
- 238000005516 engineering process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000571 coke Substances 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 241000628997 Flos Species 0.000 description 1
- 241000772415 Neovison vison Species 0.000 description 1
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical compound C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000002010 green coke Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The utility model discloses a kind of energy-saving system of delayed coking unit, including emptying tower, the bottom of towe for being vented tower arranges a steam generator, heat exchanger tube is provided with steam generator, the bottom of towe oil of emptying tower is connected to heat exchanger tube by column bottoms pump, and heat exchanger tube is provided with medium water inlet and steam (vapor) outlet.Steam (vapor) outlet is connected with full factory's steam pipe system.Tower System power consumption is vented in solving the problems, such as existing apparatus high, and while the steam of by-product high added value.Technically reliable, reasonable, efficient, easily enforcement, can both occur steam and use for equipment of itself in device and pipeline tracing and other devices, and cool material (product) again, and then reach the purpose of recovery oil product.
Description
Technical field
This utility model is vented the energy use technology of Tower System in being related to a kind of delayed coking unit, more particularly to a kind of
The energy-saving system of delayed coking unit.
Background technology
Delayed coking unit is a kind of heat processing technique of mink cell focus, be oil plant light materialization of heavy oil, improve refinery it is light
A kind of Main Means of oil yield.Delay coking process is typically with heavy oil, residual oil, even Colophonium as raw material, in high temperature (about
500 DEG C) under carry out thermal cracking and the condensation reaction of depth, produce the technology of rich gas, raw gasoline, diesel oil, wax oil and coke.It is
One of main method of world's residual oil deep processing, disposal ability accounts for 1/3rd of residual oil disposal ability.
So-called delay refers to and coking oil is brought rapidly up to pyrogenetic reaction temperature, but in reaction boiler tube through heating stove heat
Interior not green coke, but carry out pyrogenetic reaction again into coke drum, therefore have delay action, referred to as Delayed Coking Technology.Typically all
One stove (heating furnace), two tower (coking tower) or two stoves, four tower, heating furnace continuous feed, coking tower alternate operation.
But, in petrochina, sinopec and local refinery, for the energy that Tower System is vented in delayed coking unit
It is not high using attention rate all the time, for a large amount of heat energy that the bottom of towe oil of emptying Tower System is carried, made using recirculated water
For cooling medium, greatly, heat energy is not utilized water consumption well.
Utility model content
The purpose of this utility model is to provide a kind of art reliability, the energy-conservation of delayed coking unit that is reasonable, efficiently, easily implementing
Using system.
The purpose of this utility model is achieved through the following technical solutions：
The energy-saving system of delayed coking unit of the present utility model, including emptying tower, the bottom of towe of the emptying tower set
A steam generator is put, heat exchanger tube in the steam generator, is provided with, the bottom of towe oil of the emptying tower is connected by column bottoms pump
To the heat exchanger tube, the heat exchanger tube is provided with medium water inlet and steam (vapor) outlet.
The technical scheme provided by above-mentioned this utility model can be seen that the delayed coking of this utility model embodiment offer
The energy-saving system of unit, in solving the problems, such as existing apparatus, emptying Tower System power consumption is high, and while by-product high added value
Steam.Technically reliable, rationally, efficiently, easily implement, can both occur steam for equipment of itself in device and pipeline tracing and other
Device is used, and is cooled material (product) again, and then is reached the purpose for reclaiming oil product.
Description of the drawings
The structural representation of the energy-saving system of the delayed coking unit that Fig. 1 is provided for this utility model embodiment.
In figure：
A1 steams out and drops a hint；A2 gets rid of oil；A3 tracing steams；A4 deoxygenated waters；B1 steam enters steam pipe system；
B2 is vented tower overhead gas；B3 steam condensates；
1 for emptying tower, 2 for emptying column bottoms pump, 3 for emptying tower bottom steam generator.
Fig. 2 is steam generator mouth of pipe figure in this utility model embodiment.
In figure：
N1 is emptying tower bottom of towe oil inlet, and N2 is bottom of towe oil export, and N3 is deoxidation water inlet, and N4 is steam (vapor) outlet, the mouth of pipe
N8-1 and N8-2 is liquidometer connector, and N6, N7 are sewage draining exit, and N5 is relief valve port.
Specific embodiment
This utility model embodiment will be described in further detail below.
The energy-saving system of delayed coking unit of the present utility model, its preferably specific embodiment is：
Including emptying tower, the bottom of towe of the emptying tower arranges a steam generator, is provided with and changes in the steam generator
Heat pipe, the bottom of towe oil of the emptying tower are connected to the heat exchanger tube by column bottoms pump, the heat exchanger tube be provided with medium water inlet and
Steam (vapor) outlet.
The steam (vapor) outlet is connected with full factory's steam pipe system.
The WATER AS FLOW MEDIUM is deoxygenated water.
Level control is carried out than choosing, three parameters of steam flow and feedwater flow using double liquid level.
The energy-saving system of delayed coking unit of the present utility model, is vented Tower System power consumption in solving existing apparatus
High problem, and while the steam of by-product high added value.Technically reliable, reasonable, efficient, easily enforcement, can both occur steam for filling
Put interior equipment of itself and pipeline tracing and other devices are used, cool material (product) again, and then reach the mesh for reclaiming oil product
's.
This utility model substitutes the water cooler in prior art design using a kind of steam generator, makes emptying bottom of towe
A large amount of heat energy that oil product is carried are fully utilized and the steam of high added value occur, in device or other users use, together
When, bottom of towe oil product is winding is effectively cooled, and used as overhead reflux, material in cooling tower reaches more preferable oil recovery to a part of oil product
The purpose of product, remaining oil product are sent outside battery limit (BL).
Steam generator in this utility model, deoxygenated water are entered from shell-side bottom N3, and emptying tower bottom of towe oil is tube side N1
Charging.Emptying bottom of towe oil is cooled by being exchanged heat with deoxygenated water, while there is steam.By the double liquid level Jing of steam generator
Select or two take one with the flow summation of steam after control the feed rate of deoxygenated water, to reach deoxygenated water and vapor flow
The purpose of balance.
This utility model can be used for being vented the heat tracing of tower, and miscellaneous equipment, pipeline using the steam after power-saving technology
Heat tracing.
Specific embodiment：
As shown in Figure 1 and Figure 2, in certain delayed coking process units, after emptying tower bottom of towe oil is discharged from emptying column bottoms pump 2, lead to
Cross the N1 mouths of pipe to enter in emptying tower tower bottom steam generator, deoxygenated water enters steam generator from the shell-side bottom N3 mouths of pipe, both
Through heat exchange, the emptying tower bottom of towe oil for getting off that is cooled is gone out by the N2 mouths of pipe, is divided into 2 parts：A part returns to emptying tower 1
Tower top as backflow, oil gas in cooling tower, with the oil product in gas recovery to greatest extent；A part is used as bottom product out-of-bounds
Area.The saturated vapor of the substantial amounts of heat of deoxygenated water water suction and the generation 1.0MPa that gasifies, goes out steam generator by the N4 mouths of pipe, is incorporated to complete
Factory's steam pipe system, uses for device and user.
Relief valve floss hole N5 is set on steam generator simultaneously；Sewage draining exit N6, N7；And double liquid level control instrument mouth
N8-1、N8-2.Steam generator is controlled after the numerical value of two liquidometers carries out a flow summation with steam is taken than choosing, two
The charging of deoxygenated water, to ensure the balance of deoxygenated water and vapor flow.
In delayed coking unit, feed throughput is 125t/h (year treating capacity be 1,000,000 tons), and emptying Tower System is daily
7 hours of continuous operation, are vented bottom of towe flow for 95.33t/h, and 249 DEG C of outlet temperature requires cool to more than its condensation point, this
150 DEG C of project demand, its heat for carrying are about 5220kW.
By using the amount of energy saving that this technology can be obtained：
One emptying tower bottom steam generator is set, steam 7900Kg/h (1.0MPa, 179 DEG C) can occur, occur in year to steam
Vapour 18414.9t/a；Meanwhile, save recirculated water (32 DEG C of import, export 75 DEG C) and consume 104.7t/h, save about 24.4 year ×
104t/a, based on 3 yuan/ton of recirculated water unit price (containing tax), about 73.22 ten thousand yuan/year of equivalent RMB；Produce steam (to contain by unit price
Tax) 120 yuan/ton of meters, about 220.98 ten thousand yuan/year of equivalent RMB.Deoxidation water consumption converts into people based on 8 yuan/ton of unit price (containing tax)
14.73 ten thousand yuan/year of people's coin；About 279.47 ten thousand yuan of RMB is saved year altogether.
In sum, what this utility model examples of implementation were provided is exclusively used in the energy-conserving profit that delayed coking unit is vented Tower System
With technology, product material not only can be cooled down, and then as material in reflux cooling tower, reach the purpose for reclaiming oil product, and energy
Generation steam, is device or other user services.The technical matters flow process is simple, and easily enforcement, heat recovery efficiency are high.
The above, only this utility model preferably specific embodiment, but protection domain of the present utility model is not
Be confined to this, any those familiar with the art in technical scope of the present utility model, the change that can be readily occurred in
Change or replace, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with power
The protection domain of sharp claim is defined.
Claims (4)
1. a kind of energy-saving system of delayed coking unit, it is characterised in that including emptying tower, the bottom of towe of the emptying tower sets
A steam generator is put, heat exchanger tube in the steam generator, is provided with, the bottom of towe oil of the emptying tower is connected by column bottoms pump
To the heat exchanger tube, the heat exchanger tube is provided with medium water inlet and steam (vapor) outlet.
2. the energy-saving system of delayed coking unit according to claim 1, it is characterised in that the steam (vapor) outlet with
The steam pipe system connection of full factory.
3. the energy-saving system of delayed coking unit according to claim 2, it is characterised in that the WATER AS FLOW MEDIUM is de-
Oxygen water.
4. the energy-saving system of the delayed coking unit according to claim 1,2 or 3, it is characterised in that adopt biliquid
Position carries out level control than choosing, three parameters of steam flow and feedwater flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620902612.4U CN206051955U (en) | 2016-08-18 | 2016-08-18 | A kind of energy-saving system of delayed coking unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620902612.4U CN206051955U (en) | 2016-08-18 | 2016-08-18 | A kind of energy-saving system of delayed coking unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206051955U true CN206051955U (en) | 2017-03-29 |
Family
ID=58383585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620902612.4U Active CN206051955U (en) | 2016-08-18 | 2016-08-18 | A kind of energy-saving system of delayed coking unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206051955U (en) |
-
2016
- 2016-08-18 CN CN201620902612.4U patent/CN206051955U/en active Active
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Date of cancellation: 20231216 Granted publication date: 20170329 |
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