CN201817344U - Pretreatment device of oil production wastewater in oil field - Google Patents
Pretreatment device of oil production wastewater in oil field Download PDFInfo
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- CN201817344U CN201817344U CN2010205763497U CN201020576349U CN201817344U CN 201817344 U CN201817344 U CN 201817344U CN 2010205763497 U CN2010205763497 U CN 2010205763497U CN 201020576349 U CN201020576349 U CN 201020576349U CN 201817344 U CN201817344 U CN 201817344U
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- 239000002351 wastewater Substances 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 239000012528 membrane Substances 0.000 claims abstract description 68
- 238000001471 micro-filtration Methods 0.000 claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 32
- 238000000926 separation method Methods 0.000 claims abstract description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 239000012510 hollow fiber Substances 0.000 claims description 2
- 229920002492 poly(sulfone) Polymers 0.000 claims description 2
- 230000007774 longterm Effects 0.000 abstract description 5
- 238000001728 nano-filtration Methods 0.000 abstract description 5
- 238000001223 reverse osmosis Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000002332 oil field water Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000009671 shengli Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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- Water Treatment By Sorption (AREA)
Abstract
本实用新型公开了一种油田采油废水的预处理装置，包括水箱，原水泵，加药计量泵，第一级微滤膜组件，超滤膜组件，原水泵压力表，流量计，其特征在于在第一级微滤膜组件与超滤膜组件之间还有第二级微滤组件，第一级微滤膜组件出口与第二级微滤组件进口相连，第二级微滤组件出口连接超滤膜组件进口，超滤膜组件出口与下一膜分离系统相连。本实用新型的优点是采用二级微滤加超滤膜组件处理油田采油废水，对于低矿化度，高含油量，高CODCr的油田采油废水的预处理效果显著，经微滤处理后的水质良好，保证了超滤膜的进水水质，降低了进入后续纳滤或反渗透膜系统的污染物，能够使整个集成膜系统长期稳定运行。
The utility model discloses a pretreatment device for oilfield wastewater from oil extraction, which comprises a water tank, a raw water pump, a dosing metering pump, a first-stage microfiltration membrane module, an ultrafiltration membrane module, a raw water pump pressure gauge and a flow meter, and is characterized in that There is a second-stage microfiltration module between the first-stage microfiltration membrane module and the ultrafiltration membrane module. The outlet of the first-stage microfiltration membrane module is connected to the inlet of the second-stage microfiltration module, and the outlet of the second-stage microfiltration module is connected to the The inlet of the ultrafiltration membrane module and the outlet of the ultrafiltration membrane module are connected to the next membrane separation system. The utility model has the advantage of using two-stage microfiltration plus ultrafiltration membrane components to treat oilfield oil production wastewater, and the pretreatment effect is remarkable for oilfield oil production wastewater with low salinity, high oil content, and high COD Cr . The water quality is good, which ensures the water quality of the ultrafiltration membrane, reduces the pollutants entering the subsequent nanofiltration or reverse osmosis membrane system, and enables the long-term stable operation of the entire integrated membrane system.
Description
技术领域technical field
本实用新型涉及一种油田采油废水的预处理装置，属于油田水处理技术领域。The utility model relates to a pretreatment device for oil field wastewater from oil production, which belongs to the technical field of oil field water treatment.
背景技术Background technique
目前国外集成膜技术处理油田采油废水领域已有应用范例，而国内在油田采油废水的膜技术处理方面的研究经验相对较少。已有的油田采油废水处理技术中，申请号为CN02111402.1，名称为“利用膜分离技术进行油田采油废水深度处理及循环利用的方法”的发明专利，虽然采用了微滤、超滤、纳滤、反渗透相结合的方式对采油废水进行深度处理，但是通过对胜利油田某联合站采油废水经预处理工艺处理后的水质分析显示：采油废水高悬浮物含量、高油含量和高CODCr的特点使微滤膜组件长期运行后的产水悬浮物含量、油含量、CODCr含量依然较高，对后续的超滤及纳滤或反渗透膜的污染产生一定的作用，导致膜通量衰减较快，清洗次数增加，膜使用寿命降低，不利于整个系统的长期稳定运行。At present, the integrated membrane technology has been applied in the field of oilfield wastewater treatment in foreign countries, but domestic research experience in the treatment of oilfield wastewater with membrane technology is relatively little. In the existing oilfield oil production wastewater treatment technology, the application number is CN02111402.1, and the title is "Using Membrane Separation Technology to Carry Out Oilfield Oil Production Wastewater Advanced Treatment and Recycling Method", although microfiltration, ultrafiltration, nanofiltration The combination of filtration and reverse osmosis is used for advanced treatment of oil production wastewater. However, the water quality analysis of oil production wastewater in a joint station in Shengli Oilfield after pretreatment shows that: oil production wastewater has high suspended solids content, high oil content and high COD Cr . The characteristics of the microfiltration membrane module make the content of suspended matter, oil content and COD Cr content in the produced water still high after long-term operation, which will have a certain effect on the subsequent ultrafiltration, nanofiltration or reverse osmosis membrane pollution, resulting in membrane flux. The decay is faster, the number of cleanings increases, and the service life of the membrane is reduced, which is not conducive to the long-term stable operation of the entire system.
发明内容Contents of the invention
针对上述问题，本实用新型的目的是提供一种两级微滤加超滤的油田采油废水的预处理装置，降低进入后续膜系统的污染物，保证纳滤或反渗透膜的进水水质，使整个集成膜系统能够长期稳定运行。In view of the above problems, the purpose of this utility model is to provide a two-stage microfiltration plus ultrafiltration pretreatment device for oilfield oil production wastewater, reduce the pollutants entering the subsequent membrane system, and ensure the quality of influent water for nanofiltration or reverse osmosis membranes. The whole integrated membrane system can run stably for a long time.
本实用新型包括水箱，原水泵，加药计量泵，第一级微滤膜组件，超滤膜组件，原水泵压力表，流量计，其特征在于在第一级微滤膜组件与超滤膜组件之间还有第二级微滤组件，第一级微滤膜组件出口与第二级微滤组件进口相连，第二级微滤组件出口连接超滤膜组件进口，超滤膜组件出口与下一膜分离系统相连。The utility model comprises a water tank, a raw water pump, a dosing metering pump, a first-stage microfiltration membrane assembly, an ultrafiltration membrane assembly, a raw water pump pressure gauge, and a flow meter, and is characterized in that the first-stage microfiltration membrane assembly and the ultrafiltration membrane There is also a second-stage microfiltration module between the modules, the outlet of the first-stage microfiltration membrane module is connected to the inlet of the second-stage microfiltration module, the outlet of the second-stage microfiltration module is connected to the inlet of the ultrafiltration membrane module, and the outlet of the ultrafiltration membrane module is connected to the connected to the next membrane separation system.
所述第一级微滤膜组件的滤芯为线绕滤芯。The filter element of the first-stage microfiltration membrane module is a wire-wound filter element.
所述第二级微滤组件的滤芯为活性炭纤维滤芯。The filter element of the second-stage microfiltration assembly is an activated carbon fiber filter element.
所述超滤组件滤芯为聚砜中空纤维超滤膜组件。The filter element of the ultrafiltration module is a polysulfone hollow fiber ultrafiltration membrane module.
本实用新型的优点是：采用二级微滤加超滤膜组件处理油田采油废水，对于低矿化度，高含油量，高CODCr的油田采油废水的预处理效果显著，经微滤处理后的水质良好，保证了超滤膜的进水水质，降低了进入后续纳滤或反渗透膜系统的污染物，能够使整个集成膜系统长期稳定运行；结构简单，不需要对原有的油田采油废水处理装置做很大的改动。The utility model has the advantages that: using two-stage microfiltration plus ultrafiltration membrane components to treat oilfield oil production wastewater, the pretreatment effect for oilfield oil production wastewater with low salinity, high oil content, and high COD Cr is remarkable, and after microfiltration treatment The water quality is good, which ensures the water quality of the ultrafiltration membrane, reduces the pollutants entering the subsequent nanofiltration or reverse osmosis membrane system, and enables the entire integrated membrane system to operate stably for a long time; the structure is simple and does not require oil extraction in the original oil field The wastewater treatment plant has undergone major changes.
附图说明Description of drawings
图1是本实用新型的结构示意图。Fig. 1 is the structural representation of the utility model.
图中：1. 第一级微滤组件，2. 第二级微滤组件，3. 超滤膜组件，4. 水箱，5. 进水阀门，6. 原水泵，7. 出水阀门，8. 出口压力表，9. 加药计量泵，10. 计量泵出口阀门，11. 阀门，12. 流量指示计，13. 第一安全阀，14. 第二安全阀。In the figure: 1. First stage microfiltration assembly, 2. Second stage microfiltration assembly, 3. Ultrafiltration membrane assembly, 4. Water tank, 5. Water inlet valve, 6. Raw water pump, 7. Water outlet valve, 8. Outlet pressure gauge, 9. Dosing metering pump, 10. Metering pump outlet valve, 11. Valve, 12. Flow indicator, 13. First safety valve, 14. Second safety valve.
具体实施方式Detailed ways
下面结合附图并通过具体实施例来进一步说明本实用新型。The utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.
如图1所示，本实用新型包括第一级微滤膜组件1，第二级微滤膜组件2，超滤膜组件3，水箱4，进水阀门5，原水泵6，出水阀门7，出口压力表8，加药计量泵9，计量泵出口阀门10，阀门11，流量指示计12，第一安全阀13、第二安全阀14。水箱4通过进水阀门5与原水泵6相连，原水泵6和加药计量泵9分别通过出水阀门7和计量泵出口阀门10与压力表8相连，再与第一级微滤组件1相连，第一级微滤组件1与第二级微滤组件2相连，再与超滤组件3相连，第一级微滤组件1进口连接阀门11与超滤组件3出口相连，超滤组件出口连接流量指示计12，第二级微滤组件2出口和流量指示计12下游分别装有第一安全阀13和第二安全阀14。As shown in Figure 1, the utility model includes a first-stage microfiltration membrane assembly 1, a second-stage microfiltration membrane assembly 2, an
水箱4中的采油废水通过原水泵6抽出，同时加药计量泵9将药剂送入原水泵出水管道与采油废水混合，混合后的采油废水进入第一级微滤膜组件。运行初期，经第一级微滤膜组件1的产水的悬浮物粒径中值为7.3μm，长期运行后产水的悬浮物粒径中值为15.55μm，浊度的去除率初期为92.98%。而经第一级微滤膜组件1的产水中含油量较高，并且产水中CODCr含量较高。由于第一级微滤膜组件1在长时间运行后及自身的不足，使其产水会对超滤膜组件3的污染有一定影响。因此不将第一级膜组件1的产水直接送入超滤膜组件3，而先输送到第二级微滤膜组件2，使其组成二级微滤膜系统。此时第二级微滤膜组件2对第一级微滤膜组件1的产水再次进行处理，由于活性炭纤维滤芯对采油废水中的油具有一定的吸附作用，可以有效去除废水中的油。而且第二级微滤膜组件2对CODCr具有较高的去除率，从而使得废水中CODCr的含量较低，处理后的产水水质大大得到提高，此时再将经二级微滤膜组件预处理后的水通入到超滤膜组件3，经超滤膜组件3处理后进入下一膜系统。The oil production wastewater in the
在装置运行过程中，观察出口压力表8和流量指示计12的显示数据，通过调节进水阀门5和出水阀门7来控制压力和流量。调节阀门10的开度控制药剂的加入量。第一安全阀13和第二安全阀14对装置起到保护的作用。During the operation of the device, observe the display data of the
第一级微滤膜组件1的滤芯为5μm线绕滤芯，第二级微滤组件2的滤芯为5μm活性炭纤维滤芯。The filter element of the first-stage microfiltration membrane module 1 is a 5 μm wire-wound filter element, and the filter element of the second-stage microfiltration module 2 is a 5 μm activated carbon fiber filter element.
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| CN2010205763497U CN201817344U (en) | 2010-10-26 | 2010-10-26 | Pretreatment device of oil production wastewater in oil field |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103241805A (en) * | 2013-05-10 | 2013-08-14 | 北京中科润石油技术服务有限公司 | Nanofiltration water treatment method and system |
| CN106587444A (en) * | 2017-02-09 | 2017-04-26 | 昆山水立净环保节能科技有限公司 | Zero discharge treatment device for laundry, car washing or bathing wastewater |
| GB2568853B (en) * | 2016-09-14 | 2022-10-12 | Gen Electric | Water processing system and associated methods |
-
2010
- 2010-10-26 CN CN2010205763497U patent/CN201817344U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103241805A (en) * | 2013-05-10 | 2013-08-14 | 北京中科润石油技术服务有限公司 | Nanofiltration water treatment method and system |
| GB2568853B (en) * | 2016-09-14 | 2022-10-12 | Gen Electric | Water processing system and associated methods |
| CN106587444A (en) * | 2017-02-09 | 2017-04-26 | 昆山水立净环保节能科技有限公司 | Zero discharge treatment device for laundry, car washing or bathing wastewater |
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Granted publication date: 20110504 Termination date: 20121026 |