CN107098417A - A kind of processing unit and technique of oil plant oil-polluted water - Google Patents
A kind of processing unit and technique of oil plant oil-polluted water Download PDFInfo
- Publication number
- CN107098417A CN107098417A CN201710305201.6A CN201710305201A CN107098417A CN 107098417 A CN107098417 A CN 107098417A CN 201710305201 A CN201710305201 A CN 201710305201A CN 107098417 A CN107098417 A CN 107098417A
- Authority
- CN
- China
- Prior art keywords
- oil
- vapour
- falling film
- polluted water
- film evaporator
- 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.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/043—Details
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/08—Thin film evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/32—Hydrocarbons, e.g. oil
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
- C02F2103/365—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds from petrochemical industry (e.g. refineries)
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The present invention relates to a kind of processing unit and technique of oil plant oil-polluted water, processing unit includes falling film evaporator, vapour liquid separator, vapour compression machine, film drier, condenser and condensate drum；Handling process comprises the following steps：Oil-polluted water is delivered in falling film evaporator and is evaporated concentration；Concentrate obtained by being concentrated by evaporation is partly recycled in falling film evaporator to be concentrated again, is partly delivered in film drier；Evaporation obtained by evaporation mutually enters vapour liquid separator and carries out vapour, liquid separation, and liquid phase delivers to concentrate pipeline, and vapour phase is delivered to vapour compression machine and recompressed as the utilization of falling film evaporator thermal source, and excess steam delivers to condenser；Concentrate is dried in film drier, dewatered sludge discharge, and the steam of generation is delivered to condenser condensation；The condensed water that condenser is produced is delivered to condensate drum.Apparatus of the present invention are simple, and technique is easy to operate, effectively carry out decrement to the water in oil-polluted water, reduce solid phase intractability, reduce energy resource consumption.
Description
Technical field
The invention belongs to the technical field of oily waste water treatment, the processing of more particularly to a kind of oil plant oil-polluted water is filled
Put and technique.
Background technology
Oily waste water is a kind of industrial wastewater having a large capacity and a wide range, from steel, machinery and petrochemical industry etc..With China's work
The fast development of industry, the discharge capacity of oily waste water increases year by year, and composition is also increasingly sophisticated.If directly discharging, because of the oil on its top layer
Film hinders oxygen to dissolve in water, so as to cause anoxic in water, biological death gives out a foul smell, severe contamination environment.
The waste water particularly produced in the exploitation of oil, refining, storage and transport process, the condensation separation water of such as oil gas and oil product,
Washings, reaction generation water, tank car washings, refining equipment washing draining etc..Due to complicated component, current most of refinings
Oily factory uses flotation, adds flocculant and is separated.Solid fraction after separation is still burnt containing the moisture for having more than 85%
Burn, consume the substantial amounts of energy.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of processing unit and technique of oil plant oil-polluted water, device
Simply, technique is easy to operate, effectively carries out decrement to the water in oil-polluted water, reduces solid phase intractability, reduces energy resource consumption.
The technical solution adopted for the present invention to solve the technical problems is to provide a kind of processing dress of oil plant oil-polluted water
Put, including falling film evaporator, vapour liquid separator, vapour compression machine, film drier, condenser and condensate drum, the falling liquid film
The charging aperture of evaporator is connected with oil-polluted water delivery pipe, the concentrate discharging opening of falling film evaporator respectively with falling film evaporator
The charging aperture connection of charging aperture and film drier, evaporation phase discharging opening are connected with vapour liquid separator, the vapour liquid separator
Liquid-phase outlet is connected with the concentrate delivery pipe of falling film evaporator, vapor phase exit is connected with vapour compression machine and condenser, described
The steam (vapor) outlet of vapour compression machine is connected with the thermal source inlet of falling film evaporator, the thermal source inlet and steam of the falling film evaporator
Delivery pipe connection, thermal source outlet are connected with condensate drum, and the film drier dries the siccative produced and passes through siccative discharging opening
Discharge, the steam produced deliver to condenser, and the heating agent entrance of the film drier connect with steam pipeline, heating agent is exported and arranged
Go out condensed water, the condensate outlet of the condenser is connected with condensate drum.
As one kind of the invention preferred embodiment, the oil-polluted water delivery pipe passes through wastewater feed pump pumping oil-containing
Sewage.
As another preferred embodiment of the present invention, the concentrate discharging opening of the falling film evaporator passes through concentrate
Pump pumps evaporation concentrated solution.
As another preferred embodiment of the present invention, the liquid outlet of the condensate drum is discharged cold by condensate pump
Lime set.
As another preferred embodiment of the present invention, the condenser is connected to vavuum pump and by vavuum pump whole
Negative pressure is produced inside individual device.
Another technical scheme that its technical problem of present invention solution is used is to provide a kind of above-mentioned oil plant of utilization and contained
The processing unit of oily water handles the technique of oil-polluted water, comprises the following steps：
(1) oil-polluted water is delivered in falling film evaporator and is evaporated concentration；
(2) step (1) is concentrated by evaporation gained concentrate and is partly recycled in falling film evaporator, is partly delivered to film drying
In device；
(3) evaporation of step (1) evaporation gained mutually enters vapour liquid separator progress vapour, liquid separation, and liquid phase conveying is steamed with falling liquid film
The concentrate for sending out device merges, and vapour phase is delivered to vapour compression machine progress vapor recompression and entered as the evaporation thermal source of falling film evaporator
Row is utilized, and unnecessary steam is delivered to condenser condensation；
(4) concentrate is dried in film drier, and gained dewatered sludge is discharged by siccative discharging opening, and gained steams
Vapour is delivered to condenser condensation；
(5) condensed water that condenser is produced is delivered to condensate drum.
Beneficial effect
In the present invention, first pass through falling film evaporator to concentrate oil-polluted water (96%~99% is aqueous), remove useless
Most water in water, effectively carries out decrement to the water in oil-polluted water, and concentrate is dried by film drier, obtained again
To the water content of dewatered sludge be reduced to 30% or so, reduce solid phase treating capacity, meanwhile, compressed and utilized by evaporated vapor,
The demand of exogenous steam is reduced, overall energy resource consumption is reduced, device is simple, and technique is easy to operate.
Brief description of the drawings
Fig. 1 is process chart of the invention.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention.In addition, it is to be understood that after the content of the invention lectured has been read, people in the art
Member can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited
Scope.
A kind of processing unit of oil plant oil-polluted water as shown in Figure 1, including falling film evaporator 1, vapour liquid separator 2,
Vapour compression machine 3, film drier 4, condenser 5 and condensate drum 6.
The charging aperture of falling film evaporator 1 is connected with oil-polluted water delivery pipe, and oil-polluted water is pumped by wastewater feed pump P1.
The concentrate discharging opening of falling film evaporator 1 connects with the charging aperture of falling film evaporator 1 and the charging aperture of film drier 4 respectively,
Evaporation phase discharging opening is connected with vapour liquid separator 2, and the concentrate discharging opening of falling film evaporator 1 is pumped by concentrate pump P2 to be evaporated
Concentrate.The thermal source inlet of falling film evaporator 1 is connected with steam pipeline, thermal source outlet is connected with condensate drum 6.
The liquid-phase outlet of vapour liquid separator 2 is connected with the concentrate delivery pipe of falling film evaporator 1, vapor phase exit and vapour pressure
Contracting machine 3 is connected with condenser 5, and the steam (vapor) outlet of vapour compression machine 3 is connected with the thermal source inlet of falling film evaporator 1.By steaming
Vapour compressor 3 is compressed utilization to evaporated vapor, can reduce the demand to exogenous steam, advantageously reduces the energy and disappears
Consumption.
Film drier 4 dries the dewatered sludge produced and is delivered to condensation by the discharge of siccative discharging opening, the steam produced
Device 5.The chuck heating agent entrance of film drier 4 is connected with steam pipeline, heating agent outlet discharge condensed water.Condenser 5 it is cold
Condensate outlet is connected with condensate drum 6, and the liquid outlet of condensate drum 6 discharges condensate liquid by condensate pump P3.Condenser 5 is connected
To vavuum pump P4, negative pressure is produced inside whole device by vavuum pump P4, to reduce evaporating temperature, it is to avoid high-temperature coking.
The technique that a kind of processing unit using the oil plant oil-polluted water carries out oily waste water treatment is provided below, including
Following steps：
(1) oil-polluted water is delivered in falling film evaporator 1 and is evaporated concentration；
(2) step (1) is concentrated by evaporation gained concentrate and is partly recycled in falling film evaporator 1, is partly delivered to film and does
In dry device 4；
(3) evaporation of step (1) evaporation gained mutually enters the progress of vapour liquid separator 2 vapour, liquid separation, and liquid phase conveying is steamed with falling liquid film
The concentrate for sending out device 1 merges, and vapour phase is delivered to vapour compression machine 3 and carries out vapor recompression as the heat of evaporation of falling film evaporator 1
Source is utilized, and unnecessary vapour phase is delivered to condenser 5 and condensed,；
(4) concentrate is dried in film drier 4, and gained dewatered sludge is discharged by siccative discharging opening, gained
Steam is delivered to condenser 5 and condensed；
(5) condensed water that condenser 5 is produced is delivered to condensate drum 6.
Claims (6)
1. a kind of processing unit of oil plant oil-polluted water, including falling film evaporator (1), vapour liquid separator (2), vapour compression machine
(3), film drier (4), condenser (5) and condensate drum (6), it is characterised in that：The charging aperture of the falling film evaporator (1)
Connected with oil-polluted water delivery pipe, the concentrate discharging opening of falling film evaporator (1) respectively with the charging aperture of falling film evaporator (1) and
The charging aperture connection of film drier (4), evaporation phase discharging opening are connected with vapour liquid separator (2), the vapour liquid separator (2)
Liquid-phase outlet is connected with the concentrate delivery pipe of falling film evaporator (1), vapor phase exit and vapour compression machine (3) and condenser (5)
Connection, the steam (vapor) outlet of the vapour compression machine (3) is connected with the thermal source inlet of falling film evaporator (1), the falling film evaporator
(1) thermal source inlet is connected with steam pipeline, thermal source outlet is connected with condensate drum (6), and the film drier (4) is dried
The siccative of generation is discharged by siccative discharging opening, the steam of generation enters condenser (5), the heating agent of the film drier (4)
Entrance is connected with steam pipeline, heating agent outlet discharge condensed water, the condensate outlet and condensate drum of the condenser (5)
(6) connect.
2. a kind of processing unit of oil plant oil-polluted water according to claim 1, it is characterised in that：The oil-polluted water
Delivery pipe pumps oil-polluted water by wastewater feed pump (P1).
3. a kind of processing unit of oil plant oil-polluted water according to claim 1, it is characterised in that：The falling film evaporation
The concentrate discharging opening of device (1) pumps evaporation concentrated solution by concentrate pump (P2).
4. a kind of processing unit of oil plant oil-polluted water according to claim 1, it is characterised in that：The condensate drum
(6) liquid outlet discharges condensate liquid by condensate pump (P3).
5. a kind of processing unit of oil plant oil-polluted water according to claim 1, it is characterised in that：The condenser
(5) it is connected to vavuum pump (P4) and negative pressure is produced inside whole device by vavuum pump (P4).
6. a kind of processing unit of the oil plant oil-polluted water described in utilization claim 1 handles the technique of oil-polluted water, including
Following steps：
(1) oil-polluted water is delivered in falling film evaporator (1) and is evaporated concentration；
(2) step (1) is concentrated by evaporation gained concentrate and is partly recycled to falling film evaporator (1), is partly delivered to film drier
(4) in；
(3) evaporation of step (1) evaporation gained mutually enters vapour liquid separator (2) progress vapour, liquid separation, liquid phase and falling film evaporator
(1) concentrate merges, and vapour phase is delivered to vapour compression machine (3) and carries out vapor recompression as the evaporation of falling film evaporator (1)
Thermal source is utilized, and unnecessary steam is delivered to condenser (5) condensation；
(4) concentrate is dried in film drier (4), and gained dewatered sludge is discharged by siccative discharging opening, and gained steams
Vapour is delivered to condenser (5) condensation；
(5) condensed water that condenser (5) is produced is delivered to condensate drum (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710305201.6A CN107098417A (en) | 2017-05-03 | 2017-05-03 | A kind of processing unit and technique of oil plant oil-polluted water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710305201.6A CN107098417A (en) | 2017-05-03 | 2017-05-03 | A kind of processing unit and technique of oil plant oil-polluted water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107098417A true CN107098417A (en) | 2017-08-29 |
Family
ID=59656763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710305201.6A Pending CN107098417A (en) | 2017-05-03 | 2017-05-03 | A kind of processing unit and technique of oil plant oil-polluted water |
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| CN (1) | CN107098417A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108862437A (en) * | 2018-07-24 | 2018-11-23 | 中石化石油工程技术服务有限公司 | A kind of vertical tube falling evaporation recycling treatment process of oilfield sewage |
| CN110282803A (en) * | 2019-07-11 | 2019-09-27 | 苏州希图环保科技有限公司 | A kind of oil-containing waste water treating device and its technique |
| CN111423094A (en) * | 2020-05-09 | 2020-07-17 | 江苏天牛环保科技有限公司 | Energy-saving sludge drying method |
| CN113371975A (en) * | 2021-07-21 | 2021-09-10 | 中洁蓝环保科技有限公司 | Sludge heat drying system and method |
| CN113646058A (en) * | 2019-02-01 | 2021-11-12 | 能量集成公司 | Method and system for energy efficient drying of co-products in biorefinery |
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2017
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| CN104671306A (en) * | 2015-02-13 | 2015-06-03 | 何文元 | Waste treatment equipment for producing palm oil |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108862437A (en) * | 2018-07-24 | 2018-11-23 | 中石化石油工程技术服务有限公司 | A kind of vertical tube falling evaporation recycling treatment process of oilfield sewage |
| CN113646058A (en) * | 2019-02-01 | 2021-11-12 | 能量集成公司 | Method and system for energy efficient drying of co-products in biorefinery |
| CN110282803A (en) * | 2019-07-11 | 2019-09-27 | 苏州希图环保科技有限公司 | A kind of oil-containing waste water treating device and its technique |
| CN111423094A (en) * | 2020-05-09 | 2020-07-17 | 江苏天牛环保科技有限公司 | Energy-saving sludge drying method |
| CN113371975A (en) * | 2021-07-21 | 2021-09-10 | 中洁蓝环保科技有限公司 | Sludge heat drying system and method |
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Application publication date: 20170829 |
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