CN203002052U - Multifunctional automatic oil discharging and sewage discharging device of oil field oily sewage filtering tank - Google Patents
Multifunctional automatic oil discharging and sewage discharging device of oil field oily sewage filtering tank Download PDFInfo
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- CN203002052U CN203002052U CN 201220703049 CN201220703049U CN203002052U CN 203002052 U CN203002052 U CN 203002052U CN 201220703049 CN201220703049 CN 201220703049 CN 201220703049 U CN201220703049 U CN 201220703049U CN 203002052 U CN203002052 U CN 203002052U
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Abstract
The utility model discloses a multifunctional automatic oil discharging and sewage discharging device of an oil field oily sewage filtering tank. An oil discharging pipe is arranged at the top of an upper seal head of the oil field oily sewage filtering tank body and connected with an inlet of an oil discharging pump on the multifunctional automatic oil discharging and sewage discharging device in the filter operation chamber, an outlet of the oil discharging pump is connected with a connection pipe, an electromagnetic oil water detection valve is arranged on the side wall of the connection pipe, an electric oil discharging valve is connected with the lower part of the connection pipe, an oil discharging branch pipe is connected with an oil discharging main pipe below the electric oil discharging valve; an oil water interface sensor is arranged on the upper seal head of the oil field oily sewage filtering tank body and connected with an automatic control system on the multifunctional automatic oil discharging and sewage discharging device by a signal line. The automatic control system has three control modes including a manual mode, a timing automatic mode and a full automatic mode. During the back flushing process of the oil field oily sewage filtering tank, the oil and sewage are discharged without obstacles.
Description
Technical field
The utility model relates to a kind of particulate filter, is specifically related to the multi-functional automatic oil draining of a kind of oil-contaminated water of oil field filtering tank, blowdown apparatus.
Background technology
Along with the deep development in oil field, for guarantee crude output steadily, the oilfield water flooding oil extraction methods just progressively is transitioned into chemical agent oil removing mode (commonly poly-ly drive, high concentration is poly-ly driven, ternary composite driving etc.) at present, the oil field, old liberated area has generally been seen poly-at present.Return the artificial situation difference due to chemical agent recovered water different development phases chemical oil displacement agent, cause the water quality characteristic of recovered water constantly to change, the water quality characteristic of water and the variation of viscosity directly have influence on the developing result of the backwash of filtrate, water after filtering technique is processed, difficulty reaches requirement.Analyze its reason, mainly be to filter time wadding grain, elaioleucite, suspension, microorganism and colloidal solid to be trapped within on filter material surface due to filtering tank, along with being trapped material, these get more and more, these materials form floccule body at filter material surface simultaneously, float to oil-contaminated water of oil field filtering tank top on the oil droplet that is not flocculated and form the sump oil layer.
Widespread adoption due to present tertiary oil production in oil field, oil-contaminated water of oil field water quality severe exacerbation, succession and content in oil-polluted water change, and cause the oil-contaminated water of oil field filtering tank to hold back the viscosity of material, to contain quantitative change large, makes sump oil, floccule body stickiness and volume become large.As everyone knows, when wadding grain has larger stickiness, the backwash water yield hour, it is unpractical that the grain of wad a quilt with cotton is smashed, and filter tank topmost formation sump oil layer due to the density variation of back-flushing, forever rest on the filter tank top.At the backwash initial stage, much larger than particle diameter of filter medium, the backwash screen casing sieve gap that catchments is limited due to wadding grain particle diameter, larger wadding grain is difficult to be excluded, and the screen casing that on the contrary backwash catchmented blocks, and reduces the backwash catchment area, reduce the backwash water yield, build the pressure when causing the filtering tank backwash.
Due to density contrast, the sump oil layer that the filter tank topmost forms is far above the screen casing that catchments simultaneously, and sump oil can not flow downward, and can't discharge from the screen casing that catchments.The material filter mixed film friction that is not discharged from wadding grain, sump oil and expands, cause the secondary pollution of filtrate, its damage ratio is more serious, causes the filter material replacement cycle to shorten, effluent quality is difficult to up to standard, and the actual motion expense increases and brought great inconvenience to production and management thereof.
When oil-contaminated water of oil field water quality was relatively poor, after the filter cycle, the backwash water yield was less in front 3 minutes, and filtrate expands gradually with backwashing water, holds back material and is stripped from the solid-liquid face, rises with backwashing water.Overwhelming majority oil-contaminated water of oil field filtering tanks are will hold back material and discharge by the backwash screen casing that catchments, and backwash is catchmented screen casing in order to prevent backwash hourglass material, the sieve gap requires less than particle diameter of filter medium, the flocculate of being held back by filtrate can not be discharged from the backwash sieve that catchment, catchment for Large-Area-Uniform during the filter tank backwash, the backwash screen casing that catchments must be positioned under oil-contaminated water of oil field filtering tank upper cover, and in filtering tank, sump oil and the flocculate held back by filtrate can not be discharged from the backwash sieve that catchment.The problem such as when causing the backwash of oil-contaminated water of oil field filtering tank, filtering tank builds the pressure, the backwash water yield does not reach designing requirement, filtrate secondary pollution, oil extraction, blowdown are not thorough, accessible blowdown in the time of must realizing the backwash of oil-contaminated water of oil field filtering tank.
While is due to the appearance of novel mechanical stirring-type oil-contaminated water of oil field filtering tank, catchment screen casing installation site of backwash in the oil-contaminated water of oil field filtering tank, install and filtrate backwash expansion condition in the situation that satisfy mechanical agitation, near oil-contaminated water of oil field filtering tank top, still there is oil collecting zone in screen casing top but the backwash in the oil-contaminated water of oil field filtering tank is catchmented as far as possible.On catchment screen casing top of backwash, so the sump oil of oil collecting zone can't be discharged from the backwash screen casing that catchments, oil collecting zone becomes sump oil dead band, serious oil-contaminated water of oil field filtering tank filtration treatment effect because of oil collecting zone.Therefore must be before backwash the sump oil in oil-contaminated water of oil field filtering tank dead band be got rid of, prevented the filtrate secondary pollution.
Summary of the invention
In order to overcome the deficiency that exists in background technology, the utility model provides the multi-functional automatic oil draining of a kind of oil-contaminated water of oil field filtering tank, blowdown apparatus, the utlity model has simple in structure, dependable performance, easy to use, be easy to the advantages such as maintenance.
the technical solution of the utility model is: the multi-functional automatic oil draining of this oil-contaminated water of oil field filtering tank, blowdown apparatus comprises filtering tank, the oil-water interfaces sensor, oil exit pipe, oil drain pump, the electromagnetism profit detects valve, electronic draining valve and automatic control system, be provided with the oil-water interfaces sensor in the filtering tank upper cover, filtering tank upper cover top or bottom are communicated with oil exit pipe, the outlet of oil exit pipe and oil drain pump inlet join, the electromagnetism profit is installed on the flow line of the oil drain pump port of export detects valve and electronic draining valve, the oil-water interfaces sensor, oil drain pump, the electromagnetism profit detects valve and electronic draining valve is connected with the automatic control system holding wire respectively.
The utlity model has following beneficial effect: the problems such as this is novel, and filtering tank builds the pressure when having solved the backwash of oil-contaminated water of oil field filtering tank, the backwash water yield does not reach designing requirement, filtrate secondary pollution, oil extraction, blowdown are not thorough; When also efficiently solving simultaneously the oil-contaminated water of oil field filtering tank backwash initial stage, water quality was relatively poor, cause the catchment blockage problem of screen casing of backwash, significantly improved filtering tank filter efficiency, effect, extend the life cycle of filtrate.
Description of drawings:
Accompanying drawing 1 is structural representation of the present utility model.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
by shown in Figure 1, the multi-functional automatic oil draining of this oil-contaminated water of oil field filtering tank, blowdown apparatus comprises filtering tank 7, oil-water interfaces sensor 1, oil exit pipe 2, oil drain pump 3, the electromagnetism profit detects valve 4, electronic draining valve 5 and automatic control system 6, be provided with oil-water interfaces sensor 1 in filtering tank 7 upper covers, the oil-water interfaces signal of oil-water interfaces sensor 1 its transmission is the principle of utilizing the different medium electrical conductivity different, thereby determine the position of oil-water interfaces, oil-water interfaces sensor 1 sends to automatic control system 6 with the oil-water interfaces signal by holding wire, automatic control system 6 opens/stops and electronic draining valve 5 ON/OFF according to oil-water interfaces signal controlling oil drain pump 3, thereby sump oil and wadding grain are discharged outside the oil-contaminated water of oil field filtering tank.Filtering tank 7 upper cover tops or bottom are communicated with oil exit pipe 2, and the outlet of oil exit pipe 2 and oil drain pump 3 inlets join, and sump oil and wadding grain that oil exit pipe 2 is held back filtrate are discharged the oil-contaminated water of oil field filtering tank.Sump oil and the wadding grain oil exit pipe 2 carried from oil drain pump 3 rise in the receipts oil tank, and oil drain pump 3 its distribution power are 2～3kW.Due to different oil exit pipe 2 inside nominal diameters of oil-polluted water water quality, be generally DN50～200.The electromagnetism profit is installed on the flow line of oil drain pump 3 ports of export detects valve 4 and electronic draining valve 5, electronic draining valve 5 materials are stainless steel, adopt ball valve or butterfly valve, ball valve and butterfly valve have the ON/OFF time short, easy for installation, be applicable to the advantages such as medium with SS, electronic draining valve 5 is identical with the inside nominal diameter of oil exit pipe 2.When the electromagnetism profit detects the valve 4 multi-functional automatic oil drainings of oil-contaminated water of oil field filtering tank, the manual oil extraction pattern of blowdown apparatus, judge whether the multi-functional automatic oil draining of oil-contaminated water of oil field filtering tank, blowdown apparatus need to carry out the oil extraction operation, and the opening time that the electromagnetism profit detects valve 4 settings is generally 2～5 seconds.Oil-water interfaces sensor 1, oil drain pump 3, electromagnetism profit detect valve 4 and electronic draining valve 5 is connected with automatic control system 6 holding wires respectively.Automatic control system 6 has manual, timing automatic, full-automatic three kinds of control models.
Claims (1)
1. multi-functional automatic oil draining of oil-contaminated water of oil field filtering tank, blowdown apparatus, comprise filtering tank (7), oil-water interfaces sensor (1), oil exit pipe (2), oil drain pump (3), the electromagnetism profit detects valve (4), electronic draining valve (5) and automatic control system (6), it is characterized in that: be provided with oil-water interfaces sensor (1) in filtering tank (7) upper cover, filtering tank (7) upper cover top or bottom are communicated with oil exit pipe (2), the outlet of oil exit pipe (2) and oil drain pump (3) inlet join, the electromagnetism profit is installed on the flow line of oil drain pump (3) port of export detects valve (4) and electronic draining valve (5), oil-water interfaces sensor (1), oil drain pump (3), the electromagnetism profit detects valve (4) and electronic draining valve (5) is connected with automatic control system (6) holding wire respectively.
2, the multi-functional automatic oil draining of oil-contaminated water of oil field filtering tank according to claim 1, blowdown apparatus, it is characterized in that: electronic draining valve (5) material is stainless steel, adopt ball valve or butterfly valve, electronic draining valve (5) is identical with the inside nominal diameter of oil exit pipe (2).
3, the multi-functional automatic oil draining of oil-contaminated water of oil field filtering tank according to claim 1, blowdown apparatus is characterized in that: automatic control system (6) has manual, timing automatic, full-automatic three kinds of control models.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220703049 CN203002052U (en) | 2012-12-19 | 2012-12-19 | Multifunctional automatic oil discharging and sewage discharging device of oil field oily sewage filtering tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220703049 CN203002052U (en) | 2012-12-19 | 2012-12-19 | Multifunctional automatic oil discharging and sewage discharging device of oil field oily sewage filtering tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203002052U true CN203002052U (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220703049 Expired - Lifetime CN203002052U (en) | 2012-12-19 | 2012-12-19 | Multifunctional automatic oil discharging and sewage discharging device of oil field oily sewage filtering tank |
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| Country | Link |
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| CN (1) | CN203002052U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107308698A (en) * | 2017-07-05 | 2017-11-03 | 宜兴市桃源环保有限公司 | A kind of skid-mounted type integrated oil field filtering oily sewage tank filtering material cleaning device and cleaning method |
-
2012
- 2012-12-19 CN CN 201220703049 patent/CN203002052U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107308698A (en) * | 2017-07-05 | 2017-11-03 | 宜兴市桃源环保有限公司 | A kind of skid-mounted type integrated oil field filtering oily sewage tank filtering material cleaning device and cleaning method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |