CN203174045U - Improved pressure control system of ethylene cracking furnace steam pocket - Google Patents
Improved pressure control system of ethylene cracking furnace steam pocket Download PDFInfo
- Publication number
- CN203174045U CN203174045U CN 201320177262 CN201320177262U CN203174045U CN 203174045 U CN203174045 U CN 203174045U CN 201320177262 CN201320177262 CN 201320177262 CN 201320177262 U CN201320177262 U CN 201320177262U CN 203174045 U CN203174045 U CN 203174045U
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- control system
- pressure control
- valve
- cracking furnace
- waste heat
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Abstract
The utility model provides a pressure control system of an ethylene cracking furnace steam pocket. The pressure control system mainly comprises a cracking furnace steam pocket, waste heat boilers II and III, a general discontinuous discharging valve and a discontinuous discharging pot, and is characterized in that a multi-grade depressurization pore plate and a discontinuous discharging valve are additionally arranged on a pipeline between the general discontinuous discharging valve of the waste heat boilers and the discontinuous discharging pot. The pressure control system provided by the utility model is reasonable in scheme design, simple in structure and convenience to operate; and steam loss caused by that the pipeline leaks and the inner part of the valve leaks is eliminated. After the pressure control system is improved and stably operated for one year, 10 tonnages of steam can be saved each hour, so that the obvious economic benefit is obtained.
Description
Technical field
The present invention relates to a kind of improved ethane cracking furnace drum pressure Controlling System.
Background technology
700,000 tons of/year ethylene units of Jilin Petrochemical company have 10 pyrolyzer, 1～6
#Stove is LSCC1-1 type boiler tube, 7
#Stove is PyroCrack6 type boiler tube, 8～10
#Stove is PyroCrack1-1 type boiler tube.Pyrolyzer needs the drum liquid level is controlled at heating and cooling process, needs standard width of a room in an old-style house valve gate discharge steam condensate.Because the pyrolyzer drum pressure is 11.4MPa, and be normal pressure behind the valve, therefore between before and after the valve pressure reduction bigger, the pipeline leakage problem often takes place, caused the high pressure steam waste, increase device comprehensive energy consumption.
Summary of the invention
The objective of the invention is to solve the problem that prior art exists, a kind of improved ethane cracking furnace drum pressure Controlling System is provided, pressure reduction before and after the valve between reduction has been avoided lime set to wash away pipeline and has been caused pipeline leakage, has saved steam consumption.
Technical scheme of the present invention is: a kind of improved ethane cracking furnace drum pressure Controlling System, mainly contain the pyrolyzer drum, waste heat boiler II, III, total between valve, between row jar, it is characterized in that: multistage step-down orifice plate of increase and a valve on the pipeline between valve and the row jar between waste heat boiler is total.
The present invention compared with prior art has the following advantages
(1) the present invention program is reasonable in design, and is simple in structure, easy to operate.
(2) eliminated pipeline leakage and valves leakage causes vapor losses.
(3) transform by smooth running in a year, per hour save 10 tons of steam, obtained remarkable economic efficiency.
Description of drawings
Fig. 1 is ethane cracking furnace drum pressure Controlling System figure of the present invention.
Fig. 2 is multistage decompression hole plate structure synoptic diagram among Fig. 1.
Among the figure, 1, drum; 2,3, waste heat boiler II, III; 4, row's main valve; 5 multistage step-down orifice plates; 6 valves; 7, row's jar; 8, steam pipe system.
Embodiment
Also by reference to the accompanying drawings the present invention is further described below by embodiment.
From Fig. 1 as seen, a kind of improved ethane cracking furnace drum pressure Controlling System, mainly contain pyrolyzer drum 1, waste heat boiler II 2, waste heat boiler III 3, valve 4 between total, between row jars 7, it is characterized in that: multistage step-down orifice plate 5 of increase and a valve 6 on the pipeline between valve and the row jar between waste heat boiler is total.
The steam that the ethane cracking furnace drum produces is delivered to ethane cracking furnace through steam pipe system 8.Phlegma enters waste heat boiler, and the steam of generation enters described drum.Waste water is between valve, the multistage orifice plate of newly establishing and a valve enter between waste heat boiler is total successively among the row jar in the waste heat boiler.Avoided causing owing to pipeline leakage and valves leakage the waste of high pressure steam.Obtain considerable economic.
Claims (1)
1. improved ethane cracking furnace drum pressure Controlling System, mainly contain the pyrolyzer drum, waste heat boiler I, II, total between valve, between row jar, it is characterized in that: multistage step-down orifice plate of increase and a valve on the pipeline between valve and the row jar between waste heat boiler is total.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320177262 CN203174045U (en) | 2013-04-11 | 2013-04-11 | Improved pressure control system of ethylene cracking furnace steam pocket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320177262 CN203174045U (en) | 2013-04-11 | 2013-04-11 | Improved pressure control system of ethylene cracking furnace steam pocket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203174045U true CN203174045U (en) | 2013-09-04 |
Family
ID=49070777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320177262 Expired - Fee Related CN203174045U (en) | 2013-04-11 | 2013-04-11 | Improved pressure control system of ethylene cracking furnace steam pocket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203174045U (en) |
-
2013
- 2013-04-11 CN CN 201320177262 patent/CN203174045U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20160411 |