CN209508160U - A kind of improved delayed coking system - Google Patents
A kind of improved delayed coking system Download PDFInfo
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- CN209508160U CN209508160U CN201821959425.5U CN201821959425U CN209508160U CN 209508160 U CN209508160 U CN 209508160U CN 201821959425 U CN201821959425 U CN 201821959425U CN 209508160 U CN209508160 U CN 209508160U
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Abstract
The utility model relates to a kind of improved delayed coking systems, including coking tower, destilling tower and coking heater；Coking tower is 2, and the oil gas vent of coking tower top connects the oil and gas entrance of destilling tower lower part by oil-vapor pipe；Destilling tower lower part sets refined bitumen entrance；The mixing oil export for distilling tower bottom connects the oil-in of coking heater by mixing oil-piping, mixes and sets mixing oil pump on oil-piping；The heating oil and gas outlet of coking heater connects 1 valve port of four-way valve by heating oil-vapor pipe, and other 3 valve ports of four-way valve are separately connected feed(raw material)inlet and the oil-vapor pipe of coking tower bottom；The top of 2 coking towers sets pressure gauge respectively, sets pressure regulator valve on the oil-vapor pipe of coking tower.The utility model will distill and coking is separated into two independent pressure spans, the purpose for improving coking process operating pressure is not only able to achieve, but also can reduce the design requirement of distillation process, so that construction investment and operating cost be effectively reduced.
Description
Technical field
The utility model relates to Delayed Coking Technology field more particularly to a kind of improved delayed coking systems.
Background technique
The technical process of needle coke are as follows: material asphalt passes through the processes such as pretreatment, distillation, coking, calcining, final to obtain
To needle coke product.The production of conventional needle coke is frequently with delay coking process, and distillation and coking process are as one in the technique
(" one kind can optimize product quality to the Chinese utility model patent that such as Authorization Notice No. is CN103468308B to integral pressure system
With the delayed coking device and method of liquid yield "), operating parameter generally fluctuates between 0.2~0.8MPa.For coking
For process, the quality of delay coke is can be improved in higher operating pressure, and then obtains the needle coke product of high-quality；But for
For distillation process, technique itself does not need excessively high operating pressure, and operating pressure parameter maintains 0.15~0.45MPa
Between can meet technological operation requirement；In distillation process and the pressure system of coking process as a whole, work is distilled
The relevant device of sequence is also required to bear higher operating pressure, and then results in unnecessary equipment wall thickness thickening, pressure rating
Increase etc., construction investment and operating cost are also increase accordingly.
Summary of the invention
The utility model provides a kind of improved delayed coking system, takes being connected in distillation process and coking process
The mode of regulator is set on pipeline, distillation process and coking process are separated into two independent pressure spans, Ji Nengshi
The purpose of coking process operating pressure is now improved, and the design requirement of distillation process can be reduced, so that construction investment be effectively reduced
And operating cost.
In order to achieve the above object, the utility model is implemented with the following technical solutions:
A kind of improved delayed coking system, including the coking tower, destilling tower and coking heater connected by pipeline；Institute
Stating coking tower is 2, and the oil gas vent of coking tower top connects the oil and gas entrance of destilling tower lower part by oil-vapor pipe；Under destilling tower
Portion sets refined bitumen entrance；The mixing oil export for distilling tower bottom connects the oil-in of coking heater by mixing oil-piping,
Mixing oil pump is set on mixing oil-piping；The heating oil and gas outlet of coking heater connects the 1 of four-way valve by heating oil-vapor pipe
A valve port；Other 3 valve ports of four-way valve are separately connected feed(raw material)inlet and the oil-vapor pipe of coking tower bottom；2 coking towers
Top sets pressure gauge respectively, sets pressure regulator valve on the oil-vapor pipe of coking tower.
The pressure regulator valve is hand-operated valve pressure valve.
The pressure regulator valve is electric pressure-regulating valve or air vent valve, and the control signal of electric pressure-regulating valve or air vent valve is defeated
Enter end to connect by the signal output end of PLC or DCS and pressure gauge.
Compared with prior art, the utility model has the beneficial effects that
1) coking process, distillation process can select suitable operating pressure according to actual needs respectively, to reduce distillation
The design requirement of process, so that construction investment and operating cost be effectively reduced；
2) distillation process can maintain stable operation at low pressures, more energy efficient, safer.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of improved delayed coking system described in the utility model.
In figure: 1. coking tower, 2. destilling tower, 3. coking heater, 4. four-way valve, 5. pressure gauge, 6. pressure regulator valve, 7. oil-vapor pipe 8.
It mixes oil-piping 9. and mixes the heating oil-vapor pipe of oil pump 10.
Specific embodiment
Specific embodiment of the present utility model is described further with reference to the accompanying drawing:
As shown in Figure 1, a kind of improved delayed coking system described in the utility model, including the coking connected by pipeline
Tower 1, destilling tower 2 and coking heater 3；The coking tower 1 is 2, and the oil gas vent of coking tower top is connected by oil-vapor pipe 7
The oil and gas entrance of 2 lower part of destilling tower；2 lower part of destilling tower sets refined bitumen entrance；The mixing oil export of 2 bottom of destilling tower passes through mixed
The oil-in that oil-piping 8 connects coking heater 3 is closed, mixes and sets mixing oil pump 9 on oil-piping；The heating oil of coking heater 3
Vapor outlet connects 1 valve port of four-way valve 4 by heating oil-vapor pipe 10, and other 3 valve ports of four-way valve 4 are separately connected coking
The feed(raw material)inlet of 1 bottom of tower and oil-vapor pipe 7；The top of 2 coking towers 1 sets pressure gauge 5 respectively, close to the oil and gas of coking tower 1
Pressure regulator valve 6 is set on pipeline 7.
The pressure regulator valve 6 is hand-operated valve pressure valve.
The pressure regulator valve 6 is electric pressure-regulating valve or air vent valve, the control signal of electric pressure-regulating valve or air vent valve
Input terminal is connected by the signal output end of PLC or DCS and pressure gauge.
A kind of technical process of improved delayed coking system described in the utility model is as follows: material asphalt is by pretreatment
Refined bitumen is obtained, refined bitumen enters destilling tower 2 after exchanging heat, and the oil and gas mass transfer first come with 1 tower top of coking tower conducts heat, then
Miscella is formed after mixing with the recycle oil of destilling tower 2, miscella is sent by the extraction of mixing oil pump 9 to the heating of coking heater 3
Into coking tower 1, delay coke and oil and gas are obtained through pyrogenetic reaction；The oil and gas of coking tower top reenters destilling tower 2；Coking tower 1
Top pressure between 0.2~0.8MPa, the top pressure of destilling tower 2 is between 0.15~0.45MPa, the top of coking tower 1
The top pressure of portion's pressure and destilling tower 2 is independently adjusted；Wherein the top pressure of coking tower 1 is pushed up by being located at coking tower 1
The pressure gauge 5 in portion is measured in real time, and the pressure value that will test is sent to PLC or DCS, PLC or DCS as output and will export
Pressure value be compared with preset pressure value, electric pressure-regulating valve on oil-vapor pipe 7 or air vent valve send control
Signal adjusts the pressure in coking tower 1 by electric pressure-regulating valve or air vent valve and keeps stable.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (3)
1. a kind of improved delayed coking system, including the coking tower, destilling tower and coking heater connected by pipeline；It is special
Sign is that the coking tower is 2, and the oil gas vent of coking tower top is entered by the oil and gas that oil-vapor pipe connects destilling tower lower part
Mouthful；Destilling tower lower part sets refined bitumen entrance；The mixing oil export for distilling tower bottom connects coking heating by mixing oil-piping
The oil-in of furnace mixes and sets mixing oil pump on oil-piping；The heating oil and gas outlet of coking heater is connected by heating oil-vapor pipe
Connect 1 valve port of four-way valve；Other 3 valve ports of four-way valve are separately connected feed(raw material)inlet and the oil-vapor pipe of coking tower bottom；2
The top of a coking tower sets pressure gauge respectively, sets pressure regulator valve on the oil-vapor pipe of coking tower.
2. a kind of improved delayed coking system according to claim 1, which is characterized in that the pressure regulator valve is hand-operated valve
Pressure valve.
3. a kind of improved delayed coking system according to claim 1, which is characterized in that the pressure regulator valve is electric adjustable
The control signal input of pressure valve or air vent valve, electric pressure-regulating valve or air vent valve passes through PLC or DCS and pressure gauge
Signal output end connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821959425.5U CN209508160U (en) | 2018-11-26 | 2018-11-26 | A kind of improved delayed coking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821959425.5U CN209508160U (en) | 2018-11-26 | 2018-11-26 | A kind of improved delayed coking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209508160U true CN209508160U (en) | 2019-10-18 |
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ID=68190309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821959425.5U Active CN209508160U (en) | 2018-11-26 | 2018-11-26 | A kind of improved delayed coking system |
Country Status (1)
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| CN (1) | CN209508160U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109370643A (en) * | 2018-11-26 | 2019-02-22 | 中冶焦耐(大连)工程技术有限公司 | A kind of improved delayed coking system and technique |
-
2018
- 2018-11-26 CN CN201821959425.5U patent/CN209508160U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109370643A (en) * | 2018-11-26 | 2019-02-22 | 中冶焦耐(大连)工程技术有限公司 | A kind of improved delayed coking system and technique |
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