CN203043795U - Coking decoking waste gas treatment device - Google Patents
Coking decoking waste gas treatment device Download PDFInfo
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- CN203043795U CN203043795U CN 201320049476 CN201320049476U CN203043795U CN 203043795 U CN203043795 U CN 203043795U CN 201320049476 CN201320049476 CN 201320049476 CN 201320049476 U CN201320049476 U CN 201320049476U CN 203043795 U CN203043795 U CN 203043795U
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- heat exchanger
- coking
- decoking
- emission
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Abstract
The utility model relates to an integrated coking decoking waste gas treatment device, comprising a condensation heat exchanger (1), an oil gas separation tank (2), a liquid ring vacuum pump and desulfuration tanks (4 and 5), wherein the condensation heat exchanger (1) cools coking decoking waste gas; the oil gas separation tank (2) separates sewage containing oil from noncondensable gas; negative pressure is formed through the liquid ring vacuum pump; the coking decoking waste gas passes through the condensation heat exchanger (1) and the oil gas separation tank (2) sequentially under negative pressure; the oil gas separation tank (2) separates condensed sewage containing oil from waste gas; the remaining noncondensable gas enters the liquid ring vacuum pump; the gas after entering the pump enters the desulfuration tanks to remove sulfide; and the gas subjected to oil removal and deodorization is directly discharged at high altitude. The utility model has the characteristics that the coking decoking waste gas treatment device is integrated and simple in operation and can eliminate pollution to the surrounding environment caused by the sulfide in coke cooling and coke cutting processes of a coking tower.
Description
Technical field
The utility model relates to a kind of coking decoking emission-control equipment, belongs to the exhaust-gas treatment field.
Background technology
Delayed coking is a kind of oil secondary operations technology, is one of main method of present world residual oil deep processing.So-called postpone to refer to residual oil is flow through the boiler tube of heating furnace with high flow velocity, be heated to the required temperature of reaction, green coke not in reaction boiler tube carries out pyrogenetic reaction again and delay to enter coke drum, delayed-action is arranged, so be called the delayed coking technology.
Delayed coking can improve yield and the decarburization efficient of light oil, is the main path of world's heavy oil lighting with its operation serialization, treating capacity is big, flexibility is strong, investment cost is low characteristics always, also is the topmost processing of heavy oil means of China.Warm sludge oil carries out pyrogenetic reaction in coke drum, the lighter products of generation comes out to enter fractionating column from the top, fractionate out rich gas, raw gasoline, diesel oil and heavy distillate; And the coke that the reaction of coke drum internal condensation generates is stayed in the coke drum, after coking in the coke drum reaches to a certain degree, just switch to and continue the coking coking in another coke drum, original coke drum then carries out the coke cleaning operation, and the coke that namely remains in the coke drum draws off with hydraulic decoking.Coke cleaning adopts the hydraulic decoking method, makes a call to a hole in burnt layer of central authorities with rig earlier, fights to the finish from the top always, feeds water under high pressure then from bottom to top, utilizes the impulsive force of water, coke is laid, and discharged by the bottom.
Delayed coking is the technology of a kind of continuous production, intermittent operation, generally has two coke drums at least, and another carries out decoking during an online green coke.Carry out the coke drum of decoking, need pass through and steam out, feed water, discharge water, steps such as waterpower is cut Jiao, oil gas preheating.Wherein discharge water to cold burnt hot-water cylinder, the temperature that discharges water is 80～100 ℃, causes cold burnt hot water tank deck sulfur-bearing steam to evaporate into atmosphere; Give the defocused phase of water-cooled, need open coke cat head breather valve, sulfur-bearing steam can enter atmosphere; The coke cooling water temperature is 90～120 ℃, when opening top/bottom and cutting Jiao, can distribute the pernicious gas of carrying oil gas, sulfide and coke powder secretly around the coking plant, and environment is polluted, and operating personnel's health in serious threat.
At present domestic also not at technology and the device of coking decoking exhaust-gas treatment, the utility model device has been filled up the blank in domestic this field.
Summary of the invention
The purpose of this utility model is to provide a kind of device simple to operate at above-mentioned weak point, can eliminate cold Jiao of coke drum and cut in the burnt process sulfide to the pollution of surrounding environment; Further, this device can be all-in-one-piece.
In order to solve aforementioned technical problem, reach above-mentioned technique effect, the utility model provides following technical scheme:
A kind of coking decoking emission-control equipment comprises condensing heat exchanger, catch pot, liquid-ring vacuum pump, digester; Condensing heat exchanger cooling coking decoking waste gas, catch pot separates oil-polluted water and fixed gas, form negative pressure by liquid-ring vacuum pump, coking decoking waste gas passes through condensing heat exchanger and catch pot successively under negative pressure, catch pot is separated condensed oil-polluted water from waste gas, remaining fixed gas enters liquid-ring vacuum pump, and gas enters digester and sloughs the sulfide that contains behind the pump, the direct high altitude discharge of gas after handling through the oil removing deodorization.
Further, comprise that also electronic cantilever hangs; Filler in the digester is arranged in filter basket, and digester is provided with top cover; Open the digester top cover during replacing, hang with electronic cantilever filter basket is put forward replacing.
Preferably, two digesters are set, perhaps serial connection or and connect, can realize that high-concentration waste gas handles and do not shut down the replacing filler.
Further, also comprise the skid platform, condensing heat exchanger, catch pot, liquid-ring vacuum pump, digester all are positioned on the skid platform, become all-in-one-piece coking decoking emission-control equipment.
Preferably, condensing heat exchanger adopts pipe heat exchanger, utilizes the tubulation tube wall to carry out temperature exchange.
Preferably, liquid-ring vacuum pump is furnished with motor, heat exchanger, knockout drum in addition, and pump corollary equipment and pipeline are integrated into the liquid ring vacuum pump assembly, is convenient to be installed on the skid platform of decoking emission-control equipment.
The utlity model has following advantage or characteristics:
Whole system adopts DCS(Distributed Control System) control, namely scattered control system also is Distributed Control System, and what be made up of process control level and process monitoring level is the multi-level computer system of tie with the communication network.It can be monitored in real time to temperature and pressure, adopts controllable motor and electrically operated valve, realizes automation control, reduces labour intensity.
In the utility model device, condensing heat exchanger adopts pipe heat exchanger, and volume is little, the heat exchange efficiency height.
In the utility model device, digester is abandoned the operation that manhole changes filler, adopts the top to uncap, lift the mode of changing basket and changes filler, safety, convenient.Two digesters adopt can go here and there can and mode connect, can realize that high-concentration waste gas handles and do not shut down the replacing filtrate, assembling mode is flexible, adaptability is strong.
Skid platform in the utility model device is welded by I-steel and steel plate, is used for bracing or strutting arrangement equipment needed thereby, parts and for staff's operation and maintenance, makes of I-steel at the equipment support place and strengthens handling.What all devices compactness was orderly is arranged on the skid platform convenient transportation, simple to operate.
The beneficial effects of the utility model are, can realize the recycling of coking decoking waste gas easily, eliminate environmental pollution of sulfide, the secondary pollution of having avoided wet desulphurization to cause simultaneously, and whole device is simple to operate, and is reliable.
Description of drawings
Fig. 1 is the schematic flow sheet of a preferred embodiment of the utility model device.
Fig. 2 is the catch pot schematic diagram of the utility model device.
Fig. 3 is the liquid ring vacuum pump assembly flow chart of the utility model device.
Fig. 4 is the layout schematic diagram of the utility model device.
Wherein, Reference numeral is respectively: 1. condensing heat exchanger, 2. catch pot, 3. liquid ring vacuum pump assembly, 4. digester, 5. digester, 6. filter basket, 7. electronic cantilever hangs, 8. skid platform, 9. medium inlet, 10. pressure relief opening, 11. pressure gauges, 12. media outlets, 13. liquid level gauge, 14. leakage fluid drams, 15. motors, 16. liquid-ring vacuum pump, 17. knockout drums, 18. heat exchangers.
The specific embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the utility model, and be not used in restriction the utility model.
As shown in Figures 1 to 4.
A kind of coking decoking emission-control equipment comprises condensing heat exchanger 1, catch pot 2, liquid-ring vacuum pump, digester.Form the negative pressure of 0.05MPa by liquid-ring vacuum pump, coking waste gas flows to the liquid-ring vacuum pump direction under negative pressure, through condensing heat exchanger 1, catch pot 2 oil gas in the coking waste gas and steam are separated from waste gas, remaining fixed gas enters liquid-ring vacuum pump, gas enters digester 4 and sloughs the sulfide that contains behind the pump, the direct high altitude discharge of gas after handling through the oil removing deodorization.
Preferably, two digester 4-5 are set.
Preferably, the filler in the digester adopts basket dress formula, hangs 7 periodic replacement filter baskets 6 with electronic cantilever.
Preferably, skid platform 8 is set.What all devices compactness was orderly is arranged on the skid platform 8 convenient transportation, simple to operate.
Preferably, as shown in Figure 3, liquid-ring vacuum pump 16 is furnished with motor, heat exchanger, knockout drum in addition, and pump corollary equipment and pipeline are integrated into vavuum pump unit 3, is convenient to be installed on the skid platform 8 of decoking emission-control equipment.At this moment, coking decoking emission-control equipment comprises condensing heat exchanger 1, catch pot 2, liquid ring vacuum pump assembly 3, digester.The schematic flow sheet of a preferred embodiment of the utility model device as shown in Figure 1.
Preferably, condensing heat exchanger 1 adopts pipe heat exchanger, by to " space in the tubulation pipe " and " space between tubulation outside and shell " two kinds of fluids that temperature is different of conveying, utilizes the tubulation tube wall to carry out temperature exchange.Tube side is passage and the part that connects in the pipe heat exchanger medium is flowed through heat exchanger tube, and the free air space of tubulation outside is shell side.Preferably, the utility model adopts the higher U-shaped heat exchange of heat pipe of heat exchange efficiency, and cooling water is walked tube side, and working media is walked shell side, takes full advantage of cooling water and reaches the cooling purpose.
Preferably, catch pot 2 is used for separating oil-polluted water and fixed gas, discharges oil-polluted water when liquid level reaches 50%, enters sewage disposal system.
In the utility model device, digester 4 is abandoned the operation that manhole changes filler, adopts the top to uncap, and lifting is changed the mode of basket and changed filler.The existing one or more manholes of tank body operated by rotary motion, when tank body installation, cleaning and loading and unloading filler, the staff can pass in and out tank body through manhole.The employing manhole is changed filler, and required time is long, and labour intensity is big, when the cover plate for manhole top nut is installed, paired diagonal angle evenly to exert oneself, in case cover plate distortion or the inequality of exerting oneself cause gas leakage.The utility model is contained in 6 li of stainless steel filter baskets with filler, basket bottom and top shop certain thickness steel wire and porcelain ball, middle shop certain thickness efficient desulfurizing agent.Basket is equipped with handle, and filler was opened digester 4 top covers after losing efficacy, and hangs with cantilever filter basket 6 is put forward to change.Two digesters 4,5 adopt can go here and there can and mode connect, can realize that high-concentration waste gas handles and do not shut down the replacing filtrate, assembling mode is flexible, adaptability is strong.
Skid platform 8 described in the utility model device is welded by I-steel and steel plate, is used for bracing or strutting arrangement equipment needed thereby, parts and for staff's operation and maintenance, makes of I-steel at the equipment support place and strengthens handling.
As Fig. 1, high-temperature steam is successively by condensing heat exchanger 1, catch pot 2, liquid ring vacuum pump assembly 3, digester 4,5.The utility model device is removed oil gas and the aqueous vapor in the high-temperature steam earlier, then desulfurization deodorizing, last qualified discharge.
As Fig. 2, through the cooled gas-liquid mixed phase of condensing heat exchanger, enter tank body from catch pot 2 tops, the bottom is provided with leakage fluid dram and carries out discharge opeing, and top is provided with the gas vent exhaust, and end face is established interface of the level gauge so that detect liquid level.When liquid level reaches 50%, discharge oil-polluted water, enter sewage disposal system.The fixed gas of oil-containing sulfide and mercaptan is inhaled into liquid-ring vacuum pump 16.Catch pot stopped 4 hours by liquid and exhaust gas flow calculates the tank body size, considers that liquid level gauge and manometric interface size arrange corresponding interface.
It should be noted that at last: the above only is preferred embodiment of the present utility model, be not limited to the utility model, although with reference to previous embodiment the utility model is had been described in detail, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. a coking decoking emission-control equipment is characterized in that: comprise condensing heat exchanger (1), catch pot (2), liquid-ring vacuum pump, digester; Condensing heat exchanger (1) cooling coking decoking waste gas, catch pot (2) separates oil-polluted water and fixed gas, form negative pressure by liquid-ring vacuum pump, coking decoking waste gas passes through condensing heat exchanger (1) and catch pot (2) successively under negative pressure, catch pot (2) is separated condensed oil-polluted water from waste gas, remaining fixed gas enters liquid-ring vacuum pump, gas enters digester and sloughs the sulfide that contains behind the pump, the direct high altitude discharge of gas after handling through the oil removing deodorization.
2. a kind of coking decoking emission-control equipment according to claim 1 is characterized in that: comprise that also electronic cantilever hangs (7); Filler in the digester is arranged in filter basket (6), and digester (4) is provided with top cover; Open digester (4) top cover during replacing, hang (7) with electronic cantilever filter basket (6) is put forward to change.
3. a kind of coking decoking emission-control equipment according to claim 2, it is characterized in that: digester arranges two, perhaps serial connection or and connect, can realize that high-concentration waste gas handles and do not shut down the replacing filler.
4. according to claim 1 or 2 or 3 described a kind of coking decoking emission-control equipments, it is characterized in that: also comprise skid platform (8), condensing heat exchanger (1), catch pot (2), liquid-ring vacuum pump, digester all are positioned on the skid platform (8), become all-in-one-piece coking decoking emission-control equipment.
5. according to claim 1 or 2 or 3 described a kind of coking decoking emission-control equipments, it is characterized in that: described condensing heat exchanger (1) adopts pipe heat exchanger, utilizes the tubulation tube wall to carry out temperature exchange.
6. according to claim 1 or 2 or 3 described a kind of coking decoking emission-control equipments, it is characterized in that: described liquid-ring vacuum pump, other is furnished with motor, heat exchanger, knockout drum, pump corollary equipment and pipeline are integrated into liquid ring vacuum pump assembly (3), are convenient to be installed on the skid platform (8) of decoking emission-control equipment.
7. a kind of coking decoking emission-control equipment according to claim 4, it is characterized in that: described liquid-ring vacuum pump, other is furnished with motor, heat exchanger, knockout drum, pump corollary equipment and pipeline are integrated into liquid ring vacuum pump assembly (3), are convenient to be installed on the skid platform (8) of decoking emission-control equipment.
8. a kind of coking decoking emission-control equipment according to claim 5, it is characterized in that: described liquid-ring vacuum pump, other is furnished with motor, heat exchanger, knockout drum, pump corollary equipment and pipeline are integrated into liquid ring vacuum pump assembly (3), are convenient to be installed on the skid platform (8) of decoking emission-control equipment.
9. a kind of coking decoking emission-control equipment according to claim 4 is characterized in that: described condensing heat exchanger (1) adopts U-shaped pipe pipe heat exchanger, utilizes the tubulation tube wall to carry out temperature exchange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320049476 CN203043795U (en) | 2013-01-29 | 2013-01-29 | Coking decoking waste gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320049476 CN203043795U (en) | 2013-01-29 | 2013-01-29 | Coking decoking waste gas treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203043795U true CN203043795U (en) | 2013-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320049476 Expired - Fee Related CN203043795U (en) | 2013-01-29 | 2013-01-29 | Coking decoking waste gas treatment device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203043795U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397868A (en) * | 2013-07-24 | 2013-11-20 | 濮阳泰和油气工程有限公司 | Skid-mounted integrated process device for coal bed gas drainage and production wells and method for applying skid-mounted integrated process device |
| CN105126530A (en) * | 2015-09-22 | 2015-12-09 | 中石化宁波工程有限公司 | Coking exhaust gas purification method |
| CN106731617A (en) * | 2016-06-30 | 2017-05-31 | 华东理工大学 | A kind of cold burnt foul waste gas of coking plant process complete method and apparatus |
-
2013
- 2013-01-29 CN CN 201320049476 patent/CN203043795U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397868A (en) * | 2013-07-24 | 2013-11-20 | 濮阳泰和油气工程有限公司 | Skid-mounted integrated process device for coal bed gas drainage and production wells and method for applying skid-mounted integrated process device |
| CN105126530A (en) * | 2015-09-22 | 2015-12-09 | 中石化宁波工程有限公司 | Coking exhaust gas purification method |
| CN105126530B (en) * | 2015-09-22 | 2017-09-12 | 中石化宁波工程有限公司 | A kind of coking exhaust purifying method |
| CN106731617A (en) * | 2016-06-30 | 2017-05-31 | 华东理工大学 | A kind of cold burnt foul waste gas of coking plant process complete method and apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Coking decoking waste gas treatment device Effective date of registration: 20151231 Granted publication date: 20130710 Pledgee: Bank of Hankou, Limited by Share Ltd, Xiangyang branch Pledgor: XIANGYANG HANGSHENG PETRO-CHEMICAL ENVIRONMENTAL PROTECTION EQUIPMENT CO., LTD. Registration number: 2015990001172 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| 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: 20130710 Termination date: 20200129 |