CN2576713Y - Oil-throwing device in delayed cocking process - Google Patents
Oil-throwing device in delayed cocking process Download PDFInfo
- Publication number
- CN2576713Y CN2576713Y CN 02290073 CN02290073U CN2576713Y CN 2576713 Y CN2576713 Y CN 2576713Y CN 02290073 CN02290073 CN 02290073 CN 02290073 U CN02290073 U CN 02290073U CN 2576713 Y CN2576713 Y CN 2576713Y
- Authority
- CN
- China
- Prior art keywords
- oil
- pipeline
- tank
- rid
- oil tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The utility model relates to the technical field of an oil-throwing device in the delayed cocking process of an oil refinery, which is designed for energy saving and environmental protection. The utility model comprises an oil-throwing tank which is provided with a pipeline connected with dirty oil coming from a coking tower and a pipeline of a gas phase returning tower. The utility model is characterized in that an outlet of the oil-throwing tank is connected with a raw material tank through a pipeline. The utility model has the characteristics of energy saving, environmental protection, short flow path, etc., and is suitable for being popularized and used in the oil refinery.
Description
Technical field
The utility model relates in a kind of refinery oil thrower technical field in the delay coking process process.
Background technology
Delayed coking unit is one of large-scale secondary processing device of refinery, and the coke drum of this device or to be reaction tower be batch operation is after experience decoking operation sequence necessary " preheating ".In warm, when pyrogenic reaction about 430 ℃ oil vapour entered the coke drum of normal temperature state, the liquefaction that is cooled of the oily vapour of part became the container that 90-350 ℃ of coking sump oil flow into the coke drum below-be commonly called as and get rid of oil tank.At present, enter the about 40-50 ton of the sump oil amount of getting rid of oil tank/sky, with reciprocation pump be a kind of be the old-fashioned oil pump supercharging of power with steam, after cooling tank cooling, deliver to the coking slop oil tank again and store.To specified containers, this operating process is called " getting rid of oil " with the sump pump that produces in the coke drum warm.Its Production Flow Chart sees Fig. 1 for details.
There are various problems such as energy consumption waste and environmental pollution in present " getting rid of oil " technology and device:
1. equipment is outmoded, and energy dissipation is big, the process cost height.
The equipment that " gets rid of oil " and manipulate gets rid of oil tank, steam driven reciprocating pump, sump oil cooling tank, slop oil tank and general vapour cooling tank.Not only the waste of complexity and energy consumption is big for these equipment.Wherein steam driven reciprocating pump is the product in eighties of last century 60-70 age, and volume is big and efficient is extremely low.The general 1.4-1.6% of sump oil productive rate is the highest by 2%.Therefore, to 800,000 tons of/year cokers of two stoves, four towers sump oil every day output 30-40 ton per day only, and about 50 ton per days of the steam consumption of two reciprocation pump.The standard energy consumption of refinery 0.1MPa steam is 76 kilograms of mark oil/ton vapour, so the energy consumption in reciprocation pump every year is:
1330 tons of standard oils of 50 * 350 * 76 ≈
In the following formula: the annual coking actual motion of 350-number of days
Fuel price is by 1500 yuan/ton, so the process cost of this reciprocation pump is:
Ten thousand yuan/year of 1500 * 1330=199.5
Amounting to the working cost that gets rid of oily process is:
199.5 * 10
4/ (40 * 350)=142.5 yuan/ton sump oil,
This expense is near refinery crude oil processing total cost, and about 150 yuan of/ton crude oil of petrochemical industry group company crude oil processing average cost this shows the height that gets rid of oily process operation expense.
2. complicated operation.
Sump oil is moisture, therefore must pump to slop oil tank, blowback head tank freshening again after dehydration has increased the cost that sump oil reclaims greatly, has also increased the complicacy of operating.
3. environmental pollution is big, labour intensity height hand-manipulated.
Reciprocation pump is except that the low waste of efficient steam, and subject matter is to pollute greatly.The pumping cylinder leakage of oil, cylinder leaks vapour, and sump oil is very smelly, so this pump district is not only dirty but also smelly, fog is steaming, and noise is big.Get rid of reciprocation pump start-stop every day in the oily process, sump oil cooling tank manual adjustment makes post labour intensity big, forms great contrast between the miscellaneous equipment operation of above-mentioned manual operations and increasingly automated operation.
Summary of the invention
The purpose of this utility model is with regard to oil thrower in the delay coking process process that is a kind of energy-saving and environmental protection to be provided at above-mentioned prior art present situation, to simplify flow process.
The purpose of this utility model is achieved in that oil thrower in this kind delay coking process process, it includes and gets rid of oil tank, get rid of the pipeline that oil tank has connection to return tower from the pipeline and the gas phase of coke tower sump oil, it is characterized in that getting rid of the oil tank outlet and remove to connect oil thrower in head tank or this kind delay coking process process by pipeline, include and get rid of oil tank, get rid of the pipeline that oil tank has connection to return tower from the pipeline and the gas phase of coke tower sump oil, it is characterized in that getting rid of oil tank top and set up the gas-oil separation section, it removes to be connected coke tower by pipeline and fuel charging valve, the pipeline that also returns tower by gas phase removes to be connected separation column with vent valve simultaneously, also set up gas tube in addition, gas tube by the gas valve with get rid of oil tank and be connected, get rid of the oil tank lower part outlet and remove to be connected head tank by pipeline and draining valve.
The above-mentioned oil tank that gets rid of is a plurality of, and their corresponding pipelines are in parallel.
Above-mentioned pipeline is taken out egress line and is raised 35-60 centimetre in the oil tank toward getting rid of getting rid of oil tank.
Compared with prior art, advantage of the present utility model is to have cancelled steam driven reciprocating pump, without steam and electric energy, and does not have leakage.Moisture for sump oil, invent a kind of simple dehydration technique and solved the water problems that contains of sump oil, do like this and can cut off the sump oil cooling tank, directly sump oil is got to head tank, make the sump oil produced in the coke drum warm whole freshenings immediately, also reached the simplification flow process simultaneously, reduce the pump discharge pipe resistance, water saving, energy-conservation and purpose such as simplify the operation.The utility model carries out direct Hybrid Heating dehydration technique dexterously, and the two combines with cancelling pump and sump oil cooling tank, it is energy-conservation that the oily process of getting rid of of coker is realized, increases economic efficiency, free from environmental pollution, realize automated operation, alleviate operator's labour intensity etc.In another embodiment, adopt gas to press oil, can guarantee that enough pressure reduction carries sump oil, adopt manual valve or motorized valve, and time variable control, can realize automated operation, enhance productivity.Its each economic target is as follows:
1, investment is less
100,000 yuan of gross investments, wherein instrument is 60,000 yuan, 40,000 yuan of pipelines.
2, economic benefit and social benefit are obvious
Save 199.5 ten thousand yuan of steam benefits, behind the enforcement this patent, cancellation is got rid of oil pump and is not used steam.Therefore, and compare before the patent working, can save 1.0Mpa steam benefit every year is 199.5 ten thousand yuan.Cancellation sump oil cooling tank has not only been simplified flow process and can also have been reclaimed the heat that the water that is cooled is taken away, and economized cycle water has been simplified operation.
Return of investment is:
199.5-10=189.5 ten thousand yuan
Payback period was less than one month.Oil pump is got rid of in cancellation, and sump oil cooling tank and slop oil tank have been avoided the sump oil freshening, have simplified operating process.Do not have and leak, noiselessness has thoroughly solved environmental issue.Can also realize automated operation, alleviate labour intensity greatly.
Do not have and leak, noiselessness has thoroughly solved all environmental issues that exist before transforming.
Description of drawings
Oil thrower schematic flow sheet in Fig. 1, the traditional delay coking process process;
One of oil thrower schematic flow sheet in Fig. 2, the utility model delay coking process process;
In Fig. 3, the utility model delay coking process process two of the oil thrower schematic flow sheet.
Embodiment
Below in conjunction with description of drawings embodiment of the present utility model is described in further detail.
Embodiment 1
As shown in Figure 2, oil thrower in this kind delayed coking flow process, it includes and gets rid of oil tank 1, in order one after the other to operate production with gap, we have selected the oil tank that gets rid of of two parallel connections for use, get rid of the pipeline 3 that oil tank 1 top has connection to return tower from the pipeline 2 and the gas phase of coke tower 6 sump oils, get rid of oil tank 1 lower part outlet and connect head tank 8 by pipeline 4.These two pipelines that get rid of oil tank such as sump oil pipeline, gas phase return the tower pipeline, advance the head tank pipeline is connected in parallel by three-way valve.In order to reduce the operating pressure of head tank, help sump oil and flow into, head tank 8 top gas connecting tubes 10 reconfiguration emptying towers by pipeline.In like manner, be placed in the eminence of high-land with getting rid of oil tank 1, head tank 8 is placed in the low lower of physical features, the pressure difference of utilizing their difference of altitude to produce is offset the resistance pressure drop of a part of pipeline, as long as say that exactly making difference of altitude between them produce static pressure adds the work differential pressure sum of getting rid of between oil tank and the head tank resistance pressure drop greater than transport pipe, get rid of oil and irritate 1 sump oil and will flow to continuously in the head tank 8 by pipeline and go.Sneak in the sump oil and go in order to prevent to sink to the water that gets rid of in the tank bottom, so pipeline 4 will be raised 35-60 centimetre toward getting rid of getting rid of oil tank 1 outlet in the oil tank.Sump oil can be pressed in the head tank in order to ensure pressure reduction simultaneously and go, head tank 8 is connected to high pressure gas pipeline 9 or nitrogen pipeline in sump oil inlet duct lower end, when some unforeseen circumstances occurs making transfer pressure not enough, utilize gas to reduce the interior sump oil severe of sump oil source line of head tank 8, sump oil can successfully be pressed onto in the head tank go.
Its principle of work is as follows:
1. dirty oil dewatering technology, temperature was less than 120 ℃ when the preheating of coke drum oil gas began, and the moisture content in the tower flows into together with sump oil and gets rid of in the oil tank, so it is moisture to get rid of the interior sump oil of oil tank, this sump oil does not pump at the bottom of staying and getting rid of oil tank.Along with the rising of temperature in the coke drum, when entering the sump oil temperature of getting rid of in the oil tank when being increased to 120-320 ℃, by the high temperature sump oil.120-320 ℃ of its temperature, heating is stayed and is got rid of temperature at the bottom of the oil tank less than 120 ℃ sump oil, when making its temperature raise greater than 120 ℃, is 0.17-0.2MPa because of getting rid of the oil tank internal pressure, moisture content just can all evaporate under greater than 120 ℃ of conditions, has just solved the water problems that contains of sump oil.When sump oil is not moisture in getting rid of oil tank, so just can cut off the sump oil cooling tank, directly sump oil be got to head tank, reach simplify flow process, reduce get rid of oil tank export pipeline resistance, water saving, energy-conservation and simplify the operation, purpose such as freshening sump oil not.
2. get rid of the transformation of oily technology, oil pump is got rid of in cancellation, can be greater than the pressure of head tank one side when sum falls in resistance to flow in pipeline with fluid if get rid of the pressure of oil tank one side, and then get rid of the interior sump oil of oil tank and just can flow automatically to head tank.According to this principle, just can cancel and get rid of oil pump, reach the purpose of energy-conserving and environment-protective.For this reason, the gas wire reconfiguration that gets rid of the oil tank top is arrived the emptying tower, purpose is to reduce the head tank internal pressure, reduces to 0.06Mpa by 0.15Mpa.
Get rid of oil tank and head tank pressure at both sides in the analysis chart:
Get rid of oil tank one side, get rid of oil tank internal pressure 0.17Mpa, this jar bottom absolute altitude 3m, sump oil severe 700Kg/m
3So the total pressure of this side is:
0.17 * 10/0.7+3=27.3 rice bran oil post
The static pressure of head tank one side: the head tank internal pressure is an emptying tower static pressure, is generally 0.6 meter water column, i.e. torch water seal height, and it is 17 meters that sump oil enters crude oil batch can ingress absolute altitude, so the static pressure of this side is:
17+0.06 * 10/0.7=17.09 rice bran oil post
Getting rid of the total static pressure of oil tank one side exceeds than the static pressure of head tank one side:
27.3-17.09=10.21 rice bran oil post
Sump oil is flow velocity＜0.2 meter per second in pipeline, and the fluid minimum temperature is 130 ℃, and the estimation sump oil flows to long 30 meters of head tank pipeline, its resistance drop＜2 rice bran oil posts from getting rid of oil tank.Therefore, sump oil is by the impellent to head tank is from baric flow:
10.21-2=8.21 the rice bran oil post is amounted to 0.057Mpa
According to above-mentioned analysis, remove and get rid of oil pump and sump oil cooling tank, sump oil can flow automatically to head tank by the static pressure of self.
Embodiment 2
As schematically shown in Figure 3, oil thrower includes and gets rid of oil tank 1 in this kind delayed coking flow process, get rid of the pipeline 3 that oil tank has connection to return tower from the pipeline 2 and the gas phase of coke tower 6 sump oils, in this example, we have adopted two to get rid of oil tank, the pipeline of their correspondences is in parallel the processing, set up gas-oil separation section 7 getting rid of oil tank 1 top, its diameter Dg500 millimeter, 1000 millimeters of height H, two gas-oil separation sections 7 of getting rid of on the oil tank are passed through pipeline 2 and fuel charging valve C1 respectively, C2 removes to connect coke tower 6, also return the pipeline 3 and the vent valve B1 of tower simultaneously by gas phase, B2 removes to connect the separation column vaporization section, also set up gas tube 5 in addition, gas tube 5 is by gas valve A1, A2 is connected with the gas-oil separation section 7 of getting rid of oil tank, gets rid of oil tank 1 lower part outlet by pipeline 4 and draining valve E1, E2 removes to connect head tank.Sneak into and be transported to head tank in the sump oil in order to prevent to be deposited in the water that gets rid of the oil tank inside story, pipeline 4 is getting rid of in oil tank 1 outlet and will raise 35-60 centimetre toward getting rid of 1 li in oil tank.Sump oil not only can be thrown to head tank, can also be thrown to gasification section.Connect on the pipeline of separation column vaporization section and also be connected to control valve I, carrying sump oil to the pipeline 4 of head tank, to be connected to strainer K, to filter impurity.Set up thermopair T1, T2 in the bottom of getting rid of oil tank 1, on pipeline 4, also increased thermopair T3 simultaneously.
Its principle of work is as follows, and the preheating sump oil that coke drum 6 lower inlets come out is gentle to be introduced into the gas-oil separation section that 2# gets rid of oil tank through fuel charging valve C2: gas goes out from the top, enters the separation column vaporization section through vent valve B2 and control valve I; Moisture sump oil falls into 2# at the bottom of the segregation section and gets rid of at the bottom of the oil tank, measures about 1-1.5t, because of dead time long, at the bottom of water is deposited to jar basically.Reach 50% when above when getting rid of oil tank oil-feed liquid level, sump oil amount＞7 ton, wherein, and the moisture sump oil 1-1.5t below 130 ℃, 6 tons of 130-210 ℃ of sump oils, its heat and time, enough moisture was all vaporized.After this close fuel charging valve C2 and vent valve B2, open gas valve A2 and get rid of draining valve E2 below the oil tank, the 2# jar begins to get rid of oil, utilizes gas pressure that sump oil is pressed in the head tank and goes.Meanwhile, sump oil is changed into 1# get rid of oil tank in addition, oil-feed is to the 50-100% liquid level.In like manner, the 1# sump oil that gets rid of oil tank also will lean on the pressure of gas to overwhelm head tank.Like this, the sump oil that coke drum comes out exchanges constantly into that 1#, 2# get rid of oil tank, constantly exchanges again to press oil to finish with gas to get rid of the oil operation.Because of there being closing valve to change pneumatic and motorized valve, get rid of oil so adopt manual telemanipulation to finish.Certainly, getting rid of oily process also can adopt time variable control to finish.
Claims (9)
1, oil thrower in a kind of delay coking process process, it includes and gets rid of oil tank (1), get rid of the pipeline (3) that oil tank has connection to return tower from the pipeline (2) and the gas phase of coke tower sump oil, it is characterized in that getting rid of oil tank (1) outlet and remove to connect head tank (8) by pipeline (4).
2, oil thrower according to claim 1 it is characterized in that the described oil tank (1) that gets rid of for a plurality of, and their corresponding pipelines is in parallel.
3, oil thrower according to claim 1 and 2 is characterized in that its top gas connecting tube (10) reconfiguration emptying tower of described head tank (8).
4, oil thrower according to claim 1 and 2, it is characterized in that describedly getting rid of that oil tank (1) is placed in the eminence of high-land and head tank (8) is placed in the low lower of physical features, make difference of altitude between them produce static pressure and add the work differential pressure of getting rid of between oil tank and the head tank resistance pressure drop greater than transport pipe.
5, oil thrower according to claim 1 and 2 is characterized in that described pipeline (4) will raise 35-60 centimetre getting rid of in oil tank (1) outlet.
6, oil thrower according to claim 1 and 2 is characterized in that described head tank (8) is connected to high pressure gas pipeline (9) or nitrogen pipeline in sump oil inlet duct lower end.
7, oil thrower in a kind of delay coking process process, it includes and gets rid of oil tank (1), get rid of the pipeline (3) that oil tank has connection to return tower from the pipeline (2) and the gas phase of coke tower sump oil, it is characterized in that getting rid of oil tank (1) top and set up gas-oil separation section (7), it removes to be connected coke tower (6) by pipeline and fuel charging valve, the pipeline (3) that also returns tower by gas phase removes to be connected separation column with vent valve simultaneously, also set up gas tube (5) in addition, gas tube (5) by the gas valve with get rid of oil tank (1) and be connected, get rid of oil tank (1) lower part outlet and remove to be connected head tank (8) by pipeline (4) and draining valve.
8, oil thrower according to claim 7 it is characterized in that the described oil tank (1) that gets rid of for a plurality of, and their corresponding pipelines is in parallel.
9,, it is characterized in that described pipeline (4) will raise 35-60 centimetre getting rid of in the oil tank outlet according to claim 7 or 8 described oil throwers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02290073 CN2576713Y (en) | 2002-05-29 | 2002-12-06 | Oil-throwing device in delayed cocking process |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN022177957 | 2002-05-29 | ||
| CN02217795 | 2002-05-29 | ||
| CN 02290073 CN2576713Y (en) | 2002-05-29 | 2002-12-06 | Oil-throwing device in delayed cocking process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2576713Y true CN2576713Y (en) | 2003-10-01 |
Family
ID=34064984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02290073 Expired - Fee Related CN2576713Y (en) | 2002-05-29 | 2002-12-06 | Oil-throwing device in delayed cocking process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2576713Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102504864A (en) * | 2011-10-26 | 2012-06-20 | 中国石油化工股份有限公司 | Novel process for treating thrown oil of coking towers and device thereof |
-
2002
- 2002-12-06 CN CN 02290073 patent/CN2576713Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102504864A (en) * | 2011-10-26 | 2012-06-20 | 中国石油化工股份有限公司 | Novel process for treating thrown oil of coking towers and device thereof |
| CN102504864B (en) * | 2011-10-26 | 2014-12-17 | 中国石油化工股份有限公司 | Novel process for treating thrown oil of coking towers and device thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1736527A (en) | Alcohol quinque-towel differential pressure distilling arrangement and technique thereof | |
| CN101831348A (en) | Method for separating and recovering product oil from waste lubricating oil and device thereof | |
| CN102557315A (en) | Process and system for treating gasified grey water | |
| CN101088975A (en) | Fuel alcohol dewatering apparatus and process | |
| CN102226113B (en) | Biomass gasified tar processing system | |
| CN216521686U (en) | Industrial treatment device for kitchen garbage | |
| CN2576713Y (en) | Oil-throwing device in delayed cocking process | |
| CN202024572U (en) | Natural gas feed gas processing device | |
| CN109052892B (en) | Device and method for treating high-water-content organic matter | |
| CN111454766A (en) | Environment-friendly waste mineral oil regeneration method and system | |
| CN204848787U (en) | Condensation decoking device | |
| CN206591086U (en) | A kind of remote scattered block crude oil surface technology processing system | |
| CN212581826U (en) | Pyrolysis gas segmentation processing system | |
| CN215691734U (en) | Crude oil distillation device for fuel production and processing | |
| CN203187502U (en) | Skid-mounted sludge pyrolysis system for preparing three-phase combustion product | |
| CN201186918Y (en) | Apparatus for producing fuel by cracking used oil | |
| CN113862045A (en) | Pyrolysis gas segmentation processing system | |
| CN103725307B (en) | Continuous flash process equipment for waste oil | |
| CN201692679U (en) | Convection heat exchange fractionation device | |
| CN103333737B (en) | Continuous reclaimer for waste lubricant | |
| CN210287237U (en) | Waste mineral oil regeneration system | |
| CN203625317U (en) | Equipment for producing diesel oil by utilizing waste engine oil | |
| CN214747450U (en) | Waste oil regeneration rectification system waste heat utilization equipment | |
| CN201908708U (en) | Exhaust gas heat reclaiming system of diesel engine | |
| CN204897837U (en) | Often push up anticorrosive device of dehydration of equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |