CN203095661U - Stripping and sprinkling cooling tower - Google Patents
Stripping and sprinkling cooling tower Download PDFInfo
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- CN203095661U CN203095661U CN 201320021671 CN201320021671U CN203095661U CN 203095661 U CN203095661 U CN 203095661U CN 201320021671 CN201320021671 CN 201320021671 CN 201320021671 U CN201320021671 U CN 201320021671U CN 203095661 U CN203095661 U CN 203095661U
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Abstract
The utility model relates to a stripping and sprinkling cooling tower. The stripping and sprinkling cooling tower is internally provided with an upper high liquid sealing fixed floating valve stripping section and a lower annular disk type distributed cooling section, wherein the high liquid sealing fixed floating valve stripping section adopts a high liquid level fixed floating valve tray, the annular disk type distributed cooling section adopts a detachable annular disk type tower plate, an annular distribution tray, a disk liquid receiving trough and an annular baffle plate are sequentially arranged from top to bottom, the bottom end of the stripping and sprinkling cooling tower is provided with a tower bottom liquid phase mixing area, the diameter of the liquid phase mixing area is greater than the diameter of the stripping section and the cooling section, a plurality of low-pressure steam inlets with different heights are formed in the stripping and sprinkling cooling tower, a low-pressure steam pipeline communicated with the low-pressure steam inlet at lowermost part directly extends into the tower bottom liquid phase mixing area, and a plurality of holes are formed in the side lower part. The stripping and sprinkling cooling tower can be used for realizing the dual functions of stripping deodorization and sprinkling cooling in one tower, effectively removing acidic gases such as H2S and light hydrocarbon in cold coke water, and effectively reducing the harm to the environment and human bodies.
Description
Technical field
The utility model relates to a kind of stripping water cooling tower, particularly relates to the stripping water cooling tower that purification, cyclically utilizing coke cooling water are used in a kind of refinery delayed coking process.
Background technology
Delayed coking is the technology that a kind of heavy oil product of being most widely used is produced light-end products by the thermal transition decarburization, is one of important means of refinery deep processing, plays an important role in China petroleum refining industry.
The raw material of delayed coking mainly is mink cell focuses such as residual oil, pitch, consider the ratio of carbon-hydrogen height of mink cell focus, the carbon residue height, be very easy to these characteristics of coking, stock oil is heated rapidly to required high temperature (480～510 ℃), mink cell focus thermal condensation reaction is transferred in the coke drum in process furnace downstream as soon as possible carried out, so be called delayed coking.Reaction oil gas is drawn from the coke drum top and is entered separation column, and the coke of generation is stayed in the coke drum, when the coke drum green coke behind certain hour, just switch in another coke drum and continue coking, original coke drum then steams out, cold Jiao and cut Jiaozhuo industry.Cut the burnt hydraulic decoking equipment that adopts and make a pilot hole in burnt layer of central authorities earlier, with cutting total hitting power that burnt drill bit utilizes high pressure water, from top to bottom coke is laid then, and drain into Jiao Chi with water by the bottom.By the oil gas that comes out in coke drum top, in separation column, tell products such as rich tail gas of coking plant, gasoline, diesel oil, wax oil.
Because mink cell focus is rich in sulphur, nitrogen and heavy metal, through after the delayed coking, most sulphur, nitrogen and heavy metal concentrate in the refinery coke.Coke is cooling off, is cutting acidiferous cold Jiao of a large amount of oil-containings of generation in the burnt process, cutting burnt sewage, severe contamination ambient atmosphere environment, and to the harm of device health of operators formation.Under the background of crude oil heaviness and poor qualityization and current environmental requirement increasingly stringent, handle also effective cyclically utilizing cold/coke cutting water, more and more become the outstanding problem of coker.
Before the nineties in 20th century, domestic coke cooling water treatment scheme is mainly open type technology.Hot sewage volatilizes a large amount of objectionable impuritiess and is diffused in the atmosphere in treating processes, causes environmental pollution and hazard to person, can't reach environmental requirement at present.After the nineties in 20th century, the coke cooling water treatment process adopts closed technology more, the oil trap that is about to open wide in the open type technology changes hot sewage jar into, the water cooling tower water cooler changes air cooler into, thereby realizes closed processes, adopts cyclone separation process to realize oily water separation simultaneously, reduced pollution to environment, but this coke cooling water circular treatment flow process still mainly exists following problem and shortcoming: (1) flow process complexity, and there is operational safety hidden danger in complex operation; (2) take up an area of greatly, investment is high; (3) coke powder and sump oil easily stop up coke cooling water strainer, centrifuge separator, even may stop up equipment and pipelines thereof such as air cooler; (4) the cold burnt hot-water cylinder cleaning frequency is more, and expense is higher.(5) operation of equipment such as centrifuge separator, automatic backwashing filter less stable, the inefficacy of breaking down easily.(6) power consumption is big, the energy consumption height.(7) rate of utilization of coke cooling water air cooler is low.
The external flow process that generally adopts the coke drum coke cooling water directly to discharge water to defocus the pond is not established cooling and oil removing facility, and coke cooling water is through filtration, oil removal, the post precipitation recycle of Jiao Chi and settling tank.The flow process of this vented disposal has the advantage that flow process is simple, easy to operate, reduce investment outlay, but requires furnace outlet temperature height, thereby reduces the fugitive constituent of coke, reduce environmental pollution, and high-pressure hydraulic pump pressure is high, and higher because of the temperature that discharges water, and environment is had certain pollution.
A kind of stripping water cooling tower that the utility model relates to can be used on coke cooling water and directly discharges water and defocus in the vented disposal technology in pond, through this stripping water cooling tower secondary stripping and spray cooling, lighter hydrocarbons in the effective elimination coke cooling water and H
2Sour gas such as S, and the water temperature of reduction coke cooling water, realization purifies effective cyclically utilizing of coke cooling water.
The utility model content
The technical problems to be solved in the utility model provides a kind of stripping water cooling tower of realizing stripping and refrigerating function in a tower simultaneously.
For reaching above-mentioned purpose, a kind of stripping water cooling tower of the utility model, be provided with the high fluid-tight of epimere fixedly float valve stripping stage and hypomere ring dish-type collecting and distributing type cooling section in the tower, high liquid level frosen valve tray is adopted in described high fluid-tight fixedly float valve stripping stage, described ring dish-type collecting and distributing type cooling section adopts detachable ring dish-type column plate, is provided with the annular spread dish successively from top to bottom, disk is subjected to liquid bath and ring baffle; The bottom of described stripping water cooling tower is provided with liquid-phase mixing district at the bottom of the tower, and the diameter in this liquid-phase mixing district is greater than the diameter of described stripping stage and cooling section; Described stripping water cooling tower is provided with the low-pressure steam inlet of a plurality of different heights, the low-pressure steam pipeline that the low-pressure steam of foot inlet is communicated with directly stretches at the bottom of the described tower in the liquid-phase mixing district, and the vapour line side-lower in stretching into liquid phase has several holes.
Stripping water cooling tower of the present utility model, wherein preferred described frosen valve tray is the 4-8 layer, and tray spacing is 600-1000mm, and height of weir plate is 150-500mm; Described detachable ring dish-type column plate is the 3-4 layer.
Stripping water cooling tower of the present utility model also is provided with the low temperature coke cooling water inlet of a plurality of different heights, and one of them low temperature coke cooling water inlet is arranged on the orlop column plate, is used for the temperature of liquid phase at the bottom of the control tower.
The utility model difference from prior art is that the utility model stripping water cooling tower has been realized the dual function of stripping deodorization and spraying cooling in a tower.By using high liquid level frosen valve tray, annular spread dish, disk to be subjected to liquid bath and ring baffle in the tower, and once or the secondary low-voltage steam stripped, directly discharging water at coke cooling water defocuses in the vented disposal technology in pond, has realized H in the coke cooling water
2The effective elimination of sour gas such as S and lighter hydrocarbons has effectively reduced the harm to the environment and the person, and reduces the water temperature of coke cooling water, realizes effective cyclically utilizing of coke cooling water.
By be provided with low-pressure steam directly with liquid-phase mixing at the bottom of the tower of stripping water cooling tower, it is possible to prevent that cold district or temperature from occurring containing coke powder sewage agglomerative at the bottom of the tower when low, and can reduce discharge water at the bottom of the tower corrodibility and irritating smell.Vapour-liquid phase mixing kettle increases the residence time of mixing kettle low-temperature mixed water by hole enlargement at the bottom of the tower, helps improving heating and evaporation effect.
One of them low temperature coke cooling water inlet is arranged on the basecoat column plate, the liquid phase region temperature is set up temperature and the control of flow tandem at the bottom of this low temperature water flow rate during cooling and the tower, so that at the bottom of the control tower coke cooling water temperature out in 55-75 ℃ interval, make the temperature of stripping water cooling tower tower bottom outlet coke cooling water satisfy processing requirement, realized the coke cooling water reuse.
Be described further below in conjunction with the structure of accompanying drawing the utility model stripping water cooling tower.
Description of drawings
Fig. 1 is the structural representation of the utility model stripping water cooling tower.
Description of reference numerals: 22-overhead gas outlet; 23-high temperature coke cooling water inlet; 24-low-pressure steam inlet I; 25-low-pressure steam inlet II; The outlet of 26-coke cooling water; The 27-ring baffle; 28-low temperature coke cooling water inlet I; The 29-disk is subjected to liquid bath; 30-annular spread dish; 31-low temperature coke cooling water inlet II; 32-low-pressure steam inlet III; The 33-frosen valve tray; The 34-downtake; The 35-tower tray is subjected to liquid bath; The 36-divider.
Embodiment
Below in conjunction with drawings and Examples, be described in more detail with other technical characterictic and advantage the utility model is above-mentioned.
Coke cooling water after the filtration enters the stripping water cooling tower and carries out stripping deodorization and cooling reduction volatilization processing, the stripping water cooling tower is divided into the high fluid-tight of epimere fixedly float valve stripping stage and hypomere ring dish-type collecting and distributing type cooling section, has realized stripping and process for cooling simultaneously in a tower.Coke cooling water is through once or the secondary steam stripping, and stripping goes out the H of 75-80%
2Sour gas and light hydrocarbon gas such as S, and by being cooled to 55-75 ℃ with the low temperature coke cooling water that returns (35-65 ℃) thorough mixing have significantly reduced the volatilization of foul gas and to the pollution of environment.
As shown in Figure 1, frosen valve tray 33 adopts high liquid level frosen valve tray, and its height of weir plate is 150-500mm, can improve the stripping mass transfer time between the gas/liquid phase.The tower tray of downtake 34 and stripping stage is subjected to the disk of liquid bath 35 and cooling section to be subjected to spacing between the liquid bath 29 all greater than 100mm, can avoid being stopped up by the burnt grain in the coke cooling water.Frosen valve tray 33 can be set to the 4-8 layer, and tower tray 33 distances between plates are set to 600-1000mm, and tower tray adopts detachable fixed connection structure.Through the coke cooling water temperature higher (80-95 ℃) after filtering, enter stripping water cooling tower top from high temperature coke cooling water inlet 23, the divider 36 by top evenly sprays on the tower tray 33.The fully contact of stripped vapor (it can be low-pressure steam that this gas is carried steam) that coke cooling water rises in these high liquid level frosen valve tray 33 up and down portions.Effectively remove the harmful sour gas of dissolved in the coke cooling water through stripping, H
2Sour gas such as S and light hydrocarbon gas drain into emptying cat head air cooler from overhead gas outlet 22.
The low pressure stripped vapor enters the stripping water cooling tower by low-pressure steam inlet III 32 and low-pressure steam inlet I 24, low-pressure steam divides two sections to enter, can go into discharge water water quality condition at the bottom of tower flow size and the tower according to actual coke cooling water, adopt one-level or secondary stripping, realize fully contacting of steam and coke cooling water, thereby effective stripping goes out the H in the coke cooling water
2Sour gas and light hydrocarbon gas (but stripping goes out 75-80%) such as S.
Can set up temperature and flow tandem control (existing control method) from low-pressure steam and cat head that low-pressure steam inlet III 32 enters, so that control cat head gas outlet temperature is in 100-120 ℃ interval.The low-pressure steam pipeline that is communicated with low-pressure steam inlet II 25 directly stretches into liquid-phase mixing district at the bottom of the tower, and annular steam pipeline side-lower is opened some holes in stretching into liquid.According to the situation that discharges water at the bottom of tower still water temperature and the tower, can feed low-pressure steam from this inlet, prevent that effectively coke cooling water from condensing and reduce discharge water at the bottom of the tower corrodibility and irritating smell.
Low temperature coke cooling water (temperature is 35-65 ℃) enters the 3-4 layer through frosen valve tray 33 bottom low temperature coke cooling water inlet II 31 and detachably encircles dish-type column plate (promptly encircling dish-type collecting and distributing type cooling section).And a standby low temperature coke cooling water inlet I 28 is set on the basecoat column plate.This low temperature water flow rate during cooling and column bottom temperature are set up temperature and flow tandem control (existing control method) so that at the bottom of the control tower coke cooling water temperature out in 45-65 ℃ interval.
(promptly encircle dish-type collecting and distributing type cooling section in frosen valve tray 33 bottoms, it adopts the 3-4 layer detachably to encircle the dish-type column plate) set gradually annular spread dish 30, disk is subjected to liquid bath 29 and ring baffle 27, the low temperature coke cooling water that enters is mixed fully through diffusion type with the hot coke cooling water that gets off from frosen valve tray downtake 34 is lowered the temperature.Liquid-phase mixing district diameter is bigger at the bottom of stripping water cooling tower 12 towers, by hole enlargement, has increased the residence time of mixing coke cooling water in the tower still, helps improving the heating evaporation effect.
Drain into Jiao Chi or/and settling tank through effective cooled mixing coke cooling water of stripping from coke cooling water outlet 26, liquid level and flow tandem control (existing control method) at the bottom of on the vent line tower being set, so that liquid level at the bottom of the tower is maintained certain altitude, thereby realize the safety and steady operation.
Above-described embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model all should fall in the definite protection domain of the utility model claims.
Claims (3)
1. stripping water cooling tower is characterized in that:
Be provided with the high fluid-tight of epimere fixedly float valve stripping stage and hypomere ring dish-type collecting and distributing type cooling section in the tower, high liquid level frosen valve tray is adopted in described high fluid-tight fixedly float valve stripping stage, described ring dish-type collecting and distributing type cooling section adopts detachable ring dish-type column plate, is provided with the annular spread dish successively from top to bottom, disk is subjected to liquid bath and ring baffle;
The bottom of described stripping water cooling tower is provided with liquid-phase mixing district at the bottom of the tower, and the diameter in this liquid-phase mixing district is greater than the diameter of described stripping stage and cooling section;
Described stripping water cooling tower is provided with the low-pressure steam inlet of a plurality of different heights, and the low-pressure steam pipeline that the low-pressure steam inlet of foot is communicated with directly stretches at the bottom of the described tower in the liquid-phase mixing district, and has several holes at side-lower.
2. stripping water cooling tower according to claim 1 is characterized in that: described frosen valve tray is the 4-8 layer, and tray spacing is 600-1000mm, and height of weir plate is 150-500mm; Described detachable ring dish-type column plate is the 3-4 layer.
3. stripping water cooling tower according to claim 1 is characterized in that: also be provided with the low temperature coke cooling water inlet of a plurality of different heights, one of them low temperature coke cooling water inlet is arranged on the orlop column plate, is used for the temperature of liquid phase at the bottom of the control tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320021671 CN203095661U (en) | 2013-01-15 | 2013-01-15 | Stripping and sprinkling cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320021671 CN203095661U (en) | 2013-01-15 | 2013-01-15 | Stripping and sprinkling cooling tower |
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| Publication Number | Publication Date |
|---|---|
| CN203095661U true CN203095661U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320021671 Expired - Fee Related CN203095661U (en) | 2013-01-15 | 2013-01-15 | Stripping and sprinkling cooling tower |
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| CN (1) | CN203095661U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408084A (en) * | 2013-08-15 | 2013-11-27 | 中国寰球工程公司 | Single-tower full blowing-off process condensate stripping technology adopting built-in graphite condenser |
| CN106595334A (en) * | 2016-12-08 | 2017-04-26 | 中山大学 | Water-saving fog-dissipation closed cooling tower with float valve structure |
| CN106767036A (en) * | 2016-11-30 | 2017-05-31 | 深圳市瑞升华科技股份有限公司 | A kind of heat exchanger |
| CN111664439A (en) * | 2019-03-07 | 2020-09-15 | 中石化广州工程有限公司 | Periodical pollution discharge flash tank |
| CN115121010A (en) * | 2022-06-29 | 2022-09-30 | 万辅工程设计有限公司 | Degassing tower, polymerization glue solution degassing treatment device and method |
| CN115350494A (en) * | 2022-07-20 | 2022-11-18 | 内蒙古鄂尔多斯化学工业有限公司 | Sectional stripping device and sectional stripping method |
-
2013
- 2013-01-15 CN CN 201320021671 patent/CN203095661U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408084A (en) * | 2013-08-15 | 2013-11-27 | 中国寰球工程公司 | Single-tower full blowing-off process condensate stripping technology adopting built-in graphite condenser |
| CN106767036A (en) * | 2016-11-30 | 2017-05-31 | 深圳市瑞升华科技股份有限公司 | A kind of heat exchanger |
| CN106595334A (en) * | 2016-12-08 | 2017-04-26 | 中山大学 | Water-saving fog-dissipation closed cooling tower with float valve structure |
| CN111664439A (en) * | 2019-03-07 | 2020-09-15 | 中石化广州工程有限公司 | Periodical pollution discharge flash tank |
| CN115121010A (en) * | 2022-06-29 | 2022-09-30 | 万辅工程设计有限公司 | Degassing tower, polymerization glue solution degassing treatment device and method |
| CN115121010B (en) * | 2022-06-29 | 2023-09-22 | 万辅工程设计有限公司 | Degassing tower, polymerization glue solution degassing treatment device and method |
| CN115350494A (en) * | 2022-07-20 | 2022-11-18 | 内蒙古鄂尔多斯化学工业有限公司 | Sectional stripping device and sectional stripping method |
| CN115350494B (en) * | 2022-07-20 | 2024-04-05 | 内蒙古鄂尔多斯化学工业有限公司 | Sectional stripping device and sectional stripping method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Two road 100012 Beijing city Chaoyang District high tech Industrial Park, No. 1. Patentee after: China Global Engineering Co. Ltd. Address before: Two road 100012 Beijing city Chaoyang District, high-tech Industrial Park No. 1 E block 3 District Chuangda room 3117 Patentee before: China Huanqiu Engineering Co. |
|
| 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: 20130731 Termination date: 20210115 |