CN203620379U - Continuous constant-pressure filter device for oil field water injection - Google Patents
Continuous constant-pressure filter device for oil field water injection Download PDFInfo
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- CN203620379U CN203620379U CN201320746796.6U CN201320746796U CN203620379U CN 203620379 U CN203620379 U CN 203620379U CN 201320746796 U CN201320746796 U CN 201320746796U CN 203620379 U CN203620379 U CN 203620379U
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Abstract
The utility model discloses a continuous constant-pressure filter device for oil field water injection, which is designed for sufficiently utilizing pressure of filtered water, and avoiding arranging a clear water tank and a water feeding pump. After being in parallel connected with two booster pumps, a raw water pipeline of the filter device is divided into a header exceeding pipeline connected with a gas-pressure water tank and a water inlet header tube connected with each electric three-way valve and a filter; each electric three-way valve is communicated with a blow-off pipeline and a water outlet header tube; a filter-screen filter which is connected with the exceeding pipeline, the blow-off pipeline and a two-stage filter water outlet pipeline is arranged on the water outlet header tube; the two-stage filtration outlet water pipeline is communicated with a water injection pump pipeline and a gas pressure water tank. An intermediate water pond or a water tank does not need to be arranged for the filter device disclosed by the utility model, the filter is used for filtering while back flushing without cutoff, so that pressure of the filtered water is constant, and water yield and water injection amount of the filter can be kept matched all the time. Buffer energy storage of equipment can ensure that the filter device stably operates when a water injection pump is started and stopped and flow rate is regulated. The exceeding design can ensure that the filter device safely operates during maintenance and when an accident happens.
Description
Technical field
The utility model relates to a kind of oil-field flooding level pressure continuous filter unit, belongs to oil-field flooding water-treatment technology field.
Background technology
The shortcoming that the general water treatment facilities adopting of oil-field flooding exists is that processed water is stored in clean water tank, and the easy variation of water quality needs setting to feed water pump (inlet of water injection pump requires pressure >=0.05MPa) and clean water tank.
Summary of the invention
The purpose of this utility model is to provide a kind of oil-field flooding level pressure continuous filter unit, clean water tank is set and feeds water pump to make full use of the rear water pressure of filter, to exempt.
Technology contents of the present utility model is as follows:
The raw water tubes line parallel of this filter connects after the first force (forcing) pump and the second force (forcing) pump and is divided into and always surmounts pipeline and water inlet manifold, always surmount pipeline and be connected auto-pneumatic cylinder through the electronic valve that surmounts with service valve, water inlet manifold is by be connected in parallel the respectively water inlet end of each filter of each electric T-shaped valve, each electric T-shaped valve blowdown end is all communicated with blowdown pipeline, and water side is all communicated with outfall sewer; Between outfall sewer and water inlet manifold, be provided with pressure difference switch, outfall sewer is provided with the filter of Full-automatic self-cleaning, is provided with and surmounts pipeline and manual override valve between filter two ends, and filter is communicated with blowdown pipeline and double-filtration water outlet pipeline; Double-filtration water outlet pipeline is provided with pressure transmitter, connects water injecting pump pipeline and auto-pneumatic cylinder simultaneously; The first force (forcing) pump, the second force (forcing) pump, electric T-shaped valve, pressure difference switch, pressure transmitter and the electronic valve that surmounts are all connected electrical control cubicles.
The utility model filter need not arrange intermediate pool or water pot, and filter on backwash limit, filter limit, continues to flow, and after filter, water pressure is constant, can keep aquifer yield and the water injection rate moment coupling of filter.The buffering accumulation of energy of equipment can guarantee filter stable operation in the time that water injecting pump opens pump, termination of pumping and Flow-rate adjustment.Surmount when design can guarantee filter in maintenance and have an accident and move safely.
Accompanying drawing explanation
Fig. 1 is oil-field flooding level pressure continuous filter unit schematic diagram.
The specific embodiment
Embodiment:
With reference to Fig. 1, embodiment of the present utility model is further illustrated:
This filter comprises the first force (forcing) pump 1, filter 2, filter 3, auto-pneumatic cylinder 4, electric T-shaped valve 5, manual override valve 6, electronicly surmounts valve 7, the second force (forcing) pump 8, water inlet manifold 9, outfall sewer 10, double-filtration water outlet pipeline 11, always surmounts pipeline 12, surmounts pipeline 13, blowdown pipeline 14, electrical control cubicles 15, pressure difference switch 16 and pressure transmitter 17;
Raw water tubes line parallel connects after the first force (forcing) pump 1 and the second force (forcing) pump 8 and is divided into and always surmounts pipeline 12 and water inlet manifold 9, always surmount pipeline 12 and be connected auto-pneumatic cylinder 4 with service valve through the electronic valve 7 that surmounts, water inlet manifold 9 is by be connected in parallel the respectively water inlet end of four filters 2 of four electric T-shaped valves 5, the blowdown end of each electric T-shaped valve 5 is all communicated with blowdown pipeline 14, and water side is all communicated with outfall sewer 10.Between outfall sewer 10 and water inlet manifold 9, be provided with pressure difference switch 16, outfall sewer 10 is provided with the filter 3 of Full-automatic self-cleaning, between filter 3 two ends, be provided with and surmount pipeline 13 and manual override valve 6, filter 3 is communicated with blowdown pipeline 14 and double-filtration water outlet pipeline 11.Double-filtration water outlet pipeline 11 is provided with pressure transmitter 17, connects water injecting pump pipeline and auto-pneumatic cylinder 4 simultaneously.The first force (forcing) pump 1, the second force (forcing) pump 8, electric T-shaped valve 5, pressure difference switch 16, pressure transmitter 17 and the electronic valve 7 that surmounts are all connected electrical control cubicles 15.
The concrete operation step of this filter is as follows:
1), when practical operation, the first force (forcing) pump 1, from the pressurization of drawing water of former water pot, filters (the about 40m3/h of separate unit filter process amount) by four filters 2 in parallel.In the time that pressure difference switch 16 is measured pressure reduction between water inlet manifold 9 and outfall sewer 10 and is exceeded 0.1MPa, control with electrical control cubicles 15, by the each filter 2 of platform backwash, close first electric T-shaped valve 5 water inlet ends, open blowdown end, make the rear water backflow of part filter in outfall sewer 10 enter filter 2, backwash filtrate, backwash flow is about the filtering traffic of a filter 2, and approximately 30 seconds backwash duration, backwash sewage is through electric T-shaped valve 5 blowdown ends and the outer row of blowdown pipeline 14; After backwash completes, open electric T-shaped valve 5 water inlet ends, close blowdown end, filter 2 is converted to filtration condition; By that analogy, the whole filters 2 of backwash, and filter on backwash limit, limit.
2) water outlet of filter 2 enters filter 3 and filters; In the time that the pressure reduction at filter 3 two ends exceedes 0.1MPa, it carries out backwash automatically, approximately uses water after 10% filter, and filter on backwash limit, limit, and backwash sewage is discharged by blowdown pipeline 14.Aperture of filter screen is 0.2mm, is greater than the filtering material particle diameter of filter 2 about 0.8-1.0mm.
3) water outlet after double-filtration is directly sent to water injecting pump re-injection by double-filtration water outlet pipeline 11.The first force (forcing) pump 1 adopts variable frequency pump (the second force (forcing) pump 8 is stand-by pump), with pressure transmitter 17 frequency interlocks, closed-loop control discharge pressure and water pump frequency, when double-filtration water outlet pipeline 11 pressure are during lower than 0.2MPa, improve the first force (forcing) pump 1 frequency, during higher than 0.2MPa, reduce the first force (forcing) pump 1 frequency, to maintain pressure and the flow of the rear water of filter, filter aquifer yield and water injection rate are consistent.
4) because pump variable frequency has certain hysteresis quality, when after double-filtration water outlet pipeline 11 filter, the water yield is instantaneous while being greater than water injection rate, the unnecessary water yield can enter auto-pneumatic cylinder 4 bufferings and store, while being less than water injection rate, the water yield of shortage, by air pressure water source 4 release of reducing pressure, avoids filtration system superpressure or pipeline to find time.
5) when maintenance of equipment with while breaking down, operate filter 3 by manual override valve 6 and surmount operation through surmounting pipeline 13.When the first force (forcing) pump 1 frequency rises to 50HZ operation and double-filtration water outlet pipeline 11 pressure lower than 0.2MPa and continues to exceed 10S when above, automatically open the electronic valve 7 that surmounts by electrical control cubicles 15, operate whole device and surmount operation, to guarantee security of system, avoid occurring water injecting pump sky and take out accident.
Claims (1)
1. an oil-field flooding level pressure continuous filter unit, is characterized in that:
The raw water tubes line parallel of this filter connects after the first force (forcing) pump (1) and the second force (forcing) pump (8) and is divided into and always surmounts pipeline (12) and water inlet manifold (9), always surmount pipeline (12) and be connected auto-pneumatic cylinder (4) with service valve through the electronic valve (7) that surmounts, water inlet manifold (9) is by be connected in parallel the respectively water inlet end of each filter (2) of each electric T-shaped valve (5), each electric T-shaped valve (5) blowdown end is all communicated with blowdown pipeline (14), and water side is all communicated with outfall sewer (10); Between outfall sewer (10) and water inlet manifold (9), be provided with pressure difference switch (16), outfall sewer (10) is provided with the filter (3) of Full-automatic self-cleaning, between filter (3) two ends, be provided with and surmount pipeline (13) and manual override valve (6), filter (3) is communicated with blowdown pipeline (14) and double-filtration water outlet pipeline (11); Double-filtration water outlet pipeline (11) is provided with pressure transmitter (17), connects water injecting pump pipeline and auto-pneumatic cylinder (4) simultaneously; The first force (forcing) pump (1), the second force (forcing) pump (8), electric T-shaped valve (5), pressure difference switch (16), pressure transmitter (17) and the electronic valve (7) that surmounts are all connected electrical control cubicles (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320746796.6U CN203620379U (en) | 2013-11-22 | 2013-11-22 | Continuous constant-pressure filter device for oil field water injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320746796.6U CN203620379U (en) | 2013-11-22 | 2013-11-22 | Continuous constant-pressure filter device for oil field water injection |
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| Publication Number | Publication Date |
|---|---|
| CN203620379U true CN203620379U (en) | 2014-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320746796.6U Expired - Fee Related CN203620379U (en) | 2013-11-22 | 2013-11-22 | Continuous constant-pressure filter device for oil field water injection |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103990313A (en) * | 2014-06-06 | 2014-08-20 | 张家港保税区金品化工机械设备有限公司 | Low-permeability oilfield produced water filtering system and backwashing process thereof |
| CN104645707A (en) * | 2013-11-22 | 2015-05-27 | 中国石油天然气股份有限公司 | Oilfield water injection constant pressure continuous filtration device and filtration technology thereof |
| CN104941301A (en) * | 2015-06-09 | 2015-09-30 | 新乡市万和过滤技术股份公司 | Recharge filter device for geothermic water cyclic utilization |
-
2013
- 2013-11-22 CN CN201320746796.6U patent/CN203620379U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104645707A (en) * | 2013-11-22 | 2015-05-27 | 中国石油天然气股份有限公司 | Oilfield water injection constant pressure continuous filtration device and filtration technology thereof |
| CN103990313A (en) * | 2014-06-06 | 2014-08-20 | 张家港保税区金品化工机械设备有限公司 | Low-permeability oilfield produced water filtering system and backwashing process thereof |
| CN104941301A (en) * | 2015-06-09 | 2015-09-30 | 新乡市万和过滤技术股份公司 | Recharge filter device for geothermic water cyclic utilization |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20140604 Termination date: 20211122 |