CN104261581A - Integrated oil and gas field wastewater treatment system - Google Patents
Integrated oil and gas field wastewater treatment system Download PDFInfo
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- CN104261581A CN104261581A CN201410537994.0A CN201410537994A CN104261581A CN 104261581 A CN104261581 A CN 104261581A CN 201410537994 A CN201410537994 A CN 201410537994A CN 104261581 A CN104261581 A CN 104261581A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
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- 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
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
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- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses an integrated oil and gas field wastewater treatment system which comprises an integrated case body, a pretreatment device, a hardness removal device, a same-end water inlet and outlet separation filter membrane system and a power distribution control cabinet, wherein the pretreatment device, a hardness removal device and the same-end water inlet and outlet separation filter membrane system are arranged in the integrated case body and connected in sequence through a pipeline, the power distribution control cabinet is connected with the pretreatment device and the hardness removal device, a wastewater inlet pipe is connected with the pretreatment device, and a clear water outlet pipe is connected with the same-end water inlet and outlet separation filter membrane system. According to design and integration of water treatment equipment, the parts are integrally designed in the integrated case body, the mounting positions of the parts are distributed based on inherent space, the space of the integrated case body is used to the maximum, the overall system equipment can be transferred better, the system can be applied to remote oil and gas fields in a quite targeted manner, one system can be used through mutual coordination among multiple oil and gas fields, equipment investment is saved effectively, and dedicated occupied land for resource development is saved.
Description
Technical field
The present invention relates to oil gas field waste water-treatment technology field, specifically, relate to integrated oil gas field wastewater treatment system.
Background technology
Along with the proposition of the development of economic society, the particularly Scientific Outlook on Development, Social Ecology harmony is had higher requirement.In oil gas field waste water treatment procedure, if the unreasonable process re-injection of oil-gas field sewage and discharge will make oil-gas field surface facility normally not run; Also can cause environment on the other hand, extremely be unfavorable for safety in production and the environment protection of oil-gas field, therefore how processing water of oil-gas field pollution is the key subjects that those skilled in the art pay close attention to all the time.Briefly, oil gas field waste water harnessing technique mainly contains re-injection, resource utilization reuse and process standard discharge three kinds.The final disposal method of current oil-gas field waste water is still based on reinjection into reservoir.But the raising of environment degree is paid attention in the whole world at present, and Freshwater resources are more and more shorter, following developing direction is not outer row, does not waste, resource utilization reuse as far as possible.
Particularly, the oil-gas field waste water of existing routine is separated sewage, purification plant's production waste and residual acid waste liquid three parts composition primarily of gas gathering station.Gas gathering station major function collects source of the gas, carries out purifying treatment, compression transmission.The Sweet natural gas of the different pressures heterogeneity of each gas well carries out collecting by gas gathering station, concora crush, then concentrates and be transported to purification plant and process, and in the process collected, carry out preliminary desulfurization dewatering process, also will add the medicaments such as defoamer simultaneously.Water of oil-gas field in major part unstripped gas divides discharge in gas gathering station, forms gas gathering station and is separated sewage.Because these water of oil-gas fields have same subterranean strata and Sweet natural gas Long Term Contact, so it is except containing petroleum substance, the miscellaneous materials such as solubility salt, suspended substance, obnoxious flavour, organism are also dissolved into, and in gas recovery, also may be added various additives artificially, so water of oil-gas field shows following four features usually: 1. petroleum substance content is high, 100 ~ 500 mg/L can be reached, petroleum substance exists for master with suspended state, part is emulsification state, and oil in water emulsion distributional stability is not easily separated; 2. organic content is higher, and western sichuan region oil-gas field waste water COD, substantially between 800 ~ 3000 mg/L, may exist a certain amount of cyclic aromatic compounds analog derivative, stable in properties, not easily oxidized removal in waste water; 3. SS content is high, and suspended particle is small, and particle diameter is generally 1 ~ 100 μm, and the total SS of waste water is 300 ~ 2000 mg/L; 4. salinity is high, and containing multiple salt, often liter of waste water chlorine ion concentration reaches several ten thousand even tens0000 milligrams.These features determine oil-gas field waste water and can not directly be discharged in environment, must deal carefully with.
Purification plant's production waste comprises the draining of the process units such as desulfurization in Gas Purification Factory, dehydration, sulphur recovery, vent gas treatment, the maintenance waste water of the device such as desulfurization, dehydration, the sanitary sewage that office and dining room are discharged, also have laboratory waste water, the draining of sour water stripping (SWS) tower accident etc., the water of oil-gas field that Partial cleansing factory also has unstripped gas to bring into.The fluctuation of its waste water quality, the water yield is large and containing a large amount of hard-degraded substance, as the characteristic contamination such as ethylene glycol, tetramethylene sulfone, MDEA, TEG, difficult for biological degradation, the treated stably reaching standard that is difficult to discharges.Its cause produced is that sulfur-bearing raw natural gas enters the unstripped gas filtering separation facility of factory through gas collecting main terminal, remove after the impurity and part free-water carried under one's arms in raw material through gravity settling and filtering separation, enter desulfurizer, remove the H in Sweet natural gas by methyldiethanolamine (MDEA) solvent selectivity
2s and CO
2, wet purification gas enters triglycol (TEG) dewatering unit, obtains qualified gas product and supplied outward by gas transmission line after dehydration.
Residual acid waste liquid is the waste liquid produced in oil-gas field acid fracturing construction process, mainly comprises returning discharge opeing after the residue acid solution of acidizing treatment and acidifying.Owing to the addition of acid solution and additive during acidifying, in waste liquid, mainly contain residual acid, multiple additives, residue, petroleum-type etc.The popular feature of acidizing waste fluid is that source of pollution are multi-point and wide-ranging, complicated component, and acidity is large, chloride content up to several ten thousand even tens0000, viscosity is large, and containing H
2s, direct discharge can cause environmental pollution.The process means of residual acid waste liquid routine comprise neutralization, flocculating settling, oxidation, Fe/C light electrolysis, H
2o
2/ Fe
2+catalyzed oxidation, absorption etc.Following table 1 probably can reflect the water-quality guideline of Dormant oils gas-field water of giving vent to anger:
| Pollutent | Oil | COD | S 2- | SS | pH | Fe | Cl - |
| Concentration range | 0.2~1310 | 20~22600 | 0.004~508 | 60~84100 | 4.5~8.5 | 0~88 | 20000+ |
Main pollutant consistence scope (unit mg/L, except pH) in table 1 water of oil-gas field
The final disposal method of current oil-gas field waste water is based on reinjection into reservoir.There is following several shortcoming in existing re-injection technique: disposable construction investment is higher; Sewage recycling cannot be realized utilize; May have an impact to periphery oil field; May have an impact to periphery section oil reservoir.Along with the shortage of more and more harsh environmental improvement requirement and water resources, contriver thinks that resource utilization reuse technology certainly will replace re-injection Processing tecchnics.Therefore complicated according to oil-gas field waste water quality, variation water quality is larger, and oil-gas field is mostly in remote districts and comparatively disperses, contriver is to adapting to various variation water quality and being convenient to the resource utilization reuse work processing mode of installation and transportation and system conducts in-depth research.
Summary of the invention
In order to solve the reluctant problem of oil gas field waste water in prior art, the invention provides a kind of energy and adapt to various variation water quality and be convenient to the integrated oil gas field wastewater treatment system of installation and transportation.
To achieve these goals, the technical solution used in the present invention is as follows:
Integrated oil gas field wastewater treatment system, comprise integrated box, be arranged on connected in turn by pipeline in integrated box pretreatment unit, except hard device, with end Inlet and outlet water separating and filtering membranous system, and with pretreatment unit and the control cabinet for power distribution that is all connected except hard device, wherein, wastewater inlet pipe is connected with pretreatment unit, and Graceful water pipe holds Inlet and outlet water separating and filtering membranous system to be connected with same.Each device is settled within it by this integrated box, system architecture is arranged compacter, reduce overall floor space, more easily its integral shift to the oil-gas field of diverse geographic location can be carried out wastewater treatment in application, set of system equipment is made to give full play to motility advantage, thus reduction cost of investment, this integrated box can design separately, and existing container body also can be adopted as application configuration.
In order to improve the water inlet quality of system, in actual applications, the waste water of oil-gas field can be arranged through the sedimentary adjustive pool from stream mode water inlet after preserving pond, the pre-process to waste water is carried out in oil-gas field locality, to remove the obvious foreign material of bulk in waste water, its concrete operations can adopt and be placed in scraping on sedimentary adjustive pool and take off device and carry out, and as grid maker etc., the mode that human at periodic intervals also can be adopted to salvage eliminating is carried out.Water inlet when this integrated oil gas field wastewater treatment system uses then can take from this sedimentary adjustive pool.
Particularly, described pretreatment unit comprises the bracing frame be connected with integrated box, be arranged at the pretreatment pool that bracing frame top is oblate cylinder body shape, be arranged at pretreatment pool central position and the water inlet solarization air cell be connected with wastewater inlet pipe, the air feeder being arranged at the stirring runner in Jin Shui solarization air cell and being connected with stirring runner, be arranged at the Qing Gua mechanism of pretreatment pool top radially action, the radial direction being arranged at pretreatment pool in the outer part and the mud drainage slot corresponding with scraping clearly mechanism position, the shore pipe be connected with mud drainage slot, be arranged at the sludgd deposition groove be connected bottom pretreatment pool and with shore pipe, and be arranged at the overflow groove of pretreatment pool side, wherein, water inlet solarization air cell top is directly communicated with pretreatment pool, be communicated with pretreatment pool by reflux line bottom water inlet solarization air cell, overflow groove is connected by pipeline with except hard device.Mud drainage slot is mutually non-interference with overflow groove.
Further, described Qing Gua mechanism comprises and to be connected with pretreatment pool and it to have the link span of track, installs clear scraper plate in orbit, and for driving clear scraper plate along the drive-motor of rail moving.Scrape clearly for the ease of multi-faceted floating matter, in further improving, concentric twice circular orbit can also be set on pretreatment pool, link span is then arranged on this circular orbit by movable parts such as rollers, and the power set that link span can be driven along this circular orbit movement is set thereon, as motor etc., so that the different positions that Qing Gua mechanism can move on pretreatment pool when needed carries out work, with it ordinatedly, mud drainage slot is periphery in the outer part of the radial direction of pretreatment pool, and overflow groove can be arranged on pretreatment pool in the outer part, also the middle part of pretreatment pool can be arranged on.
Further, described stirring runner comprises the rotating shaft of hollow and several blade be fixedly connected with rotating shaft, each blade is equipped with the air supply channel be all communicated with outside with spindle central, described air feeder is communicated with rotary shaft hollow portion, wherein air feeder can select the equipment such as air compressor, and rotating shaft is driven by power-equipments such as motors.Upon rotation of the blade, vacuum zone can be formed on rear side of the blade of these indoor, the air that air feeder provides just enters under water by the hollow channel of rotating shaft and the air supply channel of blade, the air simultaneously entered also can be smashed by blades turning, form microbubble, be adsorbed on the suspended solid SS in water and make it to float up to the water surface, thus removed by Qing Gua mechanism, but also can operationally prevent waste water from being poured in down a chimney by air supply channel.In order to equipment performance, rotating shaft and blade adopt unitary design, power-equipment drives outside liquid, the link position of air feeder and rotating shaft is near power-equipment, to reduce its sealing requirements, in the position that air feeder connects, rotating shaft wall is provided with the ventilating pit outside multiple connection hollow channel and rotating shaft, this section of rotating shaft is provided with one outward and closes and the housing is communicated with air feeder, so as when rotation air feed.
Further, the other end of described shore pipe is connected with storage mud tank, for collecting the foreign material such as mud, SS of discharge, and shore pipe has a horizontal section, be provided with spiral propeller in this section, under the help of this spiral propeller, the foreign material such as mud can enter storage mud tank quickly.In further improving, at the tube wall of this horizontal section of shore pipe, several permeability hole can be set, and the protective shell of one deck sealing is set in its external parcel, and this protective shell and the pipeline communication be connected except hard device, promote the foreign material such as mud thus to enter to store up in the process of mud tank to the squeezing action that these foreign material produce at spiral propeller, liquid in foreign material is extruded by these permeability holes, and be collected in a protective case and be transmitted back in subsequent handling, the water content of the foreign material such as these mud can also be reduced simultaneously, make the foreign material entering storage mud tank more dry, be processed better so that it is stored better in storage mud tank with follow-up.
More specifically, described comprise that feed-water end is communicated with pretreatment unit except hard device remove hard tank body, with the doser removing hard tank body and be connected, and be arranged at except the strainer in hard tank body, wherein, except the water side of hard tank body holds Inlet and outlet water separating and filtering membranous system to be communicated with same.Except hard tank body can adopt conventional tank body, be add as sodium carbonate Na in waste water by doser
2cO
3regulate the pH value of waste water Deng alkaloids, and impel the calcium ions and magnesium ions in waste water to form magnesium hydroxide Mg (OH)
2, calcium hydroxide Ca (OH)
2deng throw out, and be filtered.
More specifically, describedly filtration unit is provided with except hard device and with holding between Inlet and outlet water separating and filtering membranous system.This filtration unit comprises the mechanical filter be communicated with except hard device water side, and is arranged on end Inlet and outlet water separating and filtering membranous system water inlet front end and the first cartridge filter be communicated with mechanical filter.Wherein, mechanical filter adopts quartz filter, namely loads quartz sand effect filter packing in tank interior, retains except the middle suspended substance that anhydrates, organism, colloidal particles, microorganism, chlorine smell taste and part heavy metal ion; Cartridge filter mainly adopts the metals such as stainless steel as shell; the inner spray welding filter element loading PP material; the subtitle substance left in step before filtering; as small quartz sand etc.; subsequent step is played a protective role; its filtering accuracy reaches 10 ~ 20 μm, and wherein mechanical filter and cartridge filter can adopt the existing product that can meet aforementioned claim on the market.
More specifically, described same end Inlet and outlet water separating and filtering membranous system comprises the one-level same end Inlet and outlet water isolated filter membrane post group be communicated with successively by pipeline, buffer tank, first topping-up pump and secondary are with end Inlet and outlet water isolated filter membrane post group, wherein, one-level is communicated with the first cartridge filter with the feed-water end of end Inlet and outlet water isolated filter membrane post group, secondary is connected with Graceful water pipe with the water side of end Inlet and outlet water isolated filter membrane post group, one-level, secondary is formed in parallel with the isolated filter membrane post of end Inlet and outlet water by multiple with end Inlet and outlet water isolated filter membrane post group, usual one-level will more than secondary with holding in Inlet and outlet water isolated filter membrane post group with the same end Inlet and outlet water isolated filter membrane post in end Inlet and outlet water isolated filter membrane post group, and secondary is held in Inlet and outlet water isolated filter membrane post group usually above one-level is same with the filtering accuracy of the same end Inlet and outlet water isolated filter membrane post in end Inlet and outlet water isolated filter membrane post group.This comprises the pipe bearing shell by upper and lower ends flange seal with the isolated filter membrane post of end Inlet and outlet water, be arranged at the reverse dish of fluid at the inner two ends up and down of this pipe bearing shell respectively, be laminated in the multiple spaced support flow guiding disc between upper and lower two reverse dishes of fluid and diaphragm, sealed pipe pressure-bearing inner casing between upper and lower two reverse dishes of fluid, liquid-inlet pipe, drain pipe, and draw-in bar.
Further, described with holding Inlet and outlet water separating and filtering membranous system also to comprise by bypass line and same the second cartridge filter holding the feed-water end of Inlet and outlet water isolated filter membrane post group to be connected of one-level, the second topping-up pump be connected with the second cartridge filter, and the cleaning water tank to be connected with the second topping-up pump, wherein, cleaning water tank can external scavenging solution, scavenging solution usually by pure water and cleaning solvent formulated.During normal use, close the valve of i.e. the second cartridge filter front end in bypass line, when needs cleaning one-level or secondary are with end Inlet and outlet water isolated filter membrane post group, close one-level with the valve of end Inlet and outlet water isolated filter membrane post group front end and the valve opening bypass line can clean.
Compared with prior art, the present invention has following beneficial effect:
(1) the present invention is by the design of water treating equipment and integration, concentrate design in integrated box its each parts, based on the installation site of each parts of intrinsic allocation of space, utilize the space of integrated box substantially, and whole system equipment can be shifted preferably, can very targetedly for the oil-gas field of each remote location, a system mutually can be coordinated to use between multiple oil-gas field, effectively save facility investment, also save special occupation of land and exploit natural resources.
(2) the present invention by special membrane Technology application in the treating processes of oil-gas field waste water, different water quality requirements can be adapted to, be convenient to transport and management, it first removes grease and suspended solid SS by pre-treatment, then removes hardness, eventually passes special membrane filtration and makes waste water reach reuse standard reuse, system effluent quality is good, and stable effluent quality, standard and the requirement of waste water reclaiming reuse can be met completely, be applicable to wide popularization and application.
(3) the present invention by aeration mode make the solid matter in waste water and macromolecular substance all on bubble through the water column, thus scraped removing clearly, treatment effect is good; Stir runner by rotating in water, negative pressure space is formed bottom Shi Jin water solarization air cell, air from air feeder can enter respectively by approach with the waste water outside water inlet solarization air cell, thus be air feed in water and the process repeatedly realizing waste water, make the SS in waste water and macromolecular substance better to be floated by microbubble absorption thus, improve pretreating effect.
(4) spiral propeller of the present invention can promote the collection of mud foreign material, can also reduce the moisture of gleanings, is convenient to its subsequent disposal.
(5) pass through in the present invention, with the two-stage filtration of end Inlet and outlet water separating and filtering membranous system, to reach as high as more than 99.5% to the rejection of COD, inorganic salt, substantially increase effluent quality, effectively can reduce running cost.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention.
Fig. 2 is process flow sheet of the present invention.
Fig. 3 be in the present invention pretreatment unit look up structural representation.
Fig. 4 is the side-looking structural representation of pretreatment unit in the present invention.
Fig. 5 is the sectional structure schematic diagram stirring runner in the present invention.
Fig. 6 is the structural representation of the horizontal section of shore pipe in the present invention.
Fig. 7 is the structural representation of mechanical filter in the present invention.
Fig. 8 is the structural representation of cartridge filter in the present invention.
In above-mentioned accompanying drawing, the component names that Reference numeral is corresponding is as follows:
1-integrated box, 2-pretreatment unit, 4-mechanical filter, 5-first cartridge filter, 6-one-level is with end Inlet and outlet water isolated filter membrane post group, 7-buffer tank, 8-first topping-up pump, 9-secondary is with holding Inlet and outlet water isolated filter membrane post group, 10-second cartridge filter, 11-second topping-up pump, 12-cleans water tank;
21-bracing frame, 22-pretreatment pool, 23-is intake solarization air cell, 24-air feeder, and 25-stores up mud tank, 26-mud drainage slot, 27-shore pipe, 28-sludgd deposition groove, 29-overflow groove; 251-link span, the clear scraper plate of 252-, 253-drive-motor, 254-rotating shaft, 255-blade, 256-air supply channel, 257-spiral propeller; 31-removes hard tank body, 32-doser.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described, and embodiments of the present invention include but not limited to the following example.
Embodiment
As shown in Figures 1 to 8, this integrated oil gas field wastewater treatment system, comprise integrated box 1, be arranged on connected in turn by pipeline in integrated box pretreatment unit 2, except hard device, with end Inlet and outlet water separating and filtering membranous system, and with pretreatment unit and the control cabinet for power distribution that is all connected except hard device, wherein, wastewater inlet pipe is connected with pretreatment unit, and Graceful water pipe holds Inlet and outlet water separating and filtering membranous system to be connected with same.In figure, integrated box does not draw completely, only there is its base plate, and its upper-part can all cover in the inner by its shell, each device is settled within it by this integrated box, system architecture is arranged compacter, reduce overall floor space, more easily its integral shift to the oil-gas field of diverse geographic location can be carried out wastewater treatment in application, set of system equipment is made to give full play to motility advantage, thus reduction cost of investment, this integrated box can design separately, and existing container body also can be adopted as application configuration.
In order to improve the water inlet quality of system, in actual applications, the waste water of oil-gas field can be arranged through the sedimentary adjustive pool from stream mode water inlet after preserving pond, the pre-process to waste water is carried out in oil-gas field locality, to remove the obvious foreign material of bulk in waste water, its concrete operations can adopt and be placed in scraping on sedimentary adjustive pool and take off device and carry out, and as grid maker etc., the mode that human at periodic intervals also can be adopted to salvage eliminating is carried out.Water inlet when this integrated oil gas field wastewater treatment system uses then can take from this sedimentary adjustive pool.
Particularly, described pretreatment unit comprises the bracing frame 21 be connected with integrated box, be arranged at the pretreatment pool 22 that bracing frame top is oblate cylinder body shape, be arranged at pretreatment pool central position and the water inlet solarization air cell 23 be connected with wastewater inlet pipe, the air feeder 24 being arranged at the stirring runner in Jin Shui solarization air cell and being connected with stirring runner, be arranged at the Qing Gua mechanism of pretreatment pool top radially action, the radial direction being arranged at pretreatment pool in the outer part and the mud drainage slot 26 corresponding with scraping clearly mechanism position, the shore pipe 27 be connected with mud drainage slot, be arranged at the sludgd deposition groove 28 be connected bottom pretreatment pool and with shore pipe, and be arranged at the overflow groove 29 of pretreatment pool side, wherein, water inlet solarization air cell top is directly communicated with pretreatment pool, be communicated with pretreatment pool by reflux line bottom water inlet solarization air cell, overflow groove is connected by pipeline with except hard device.Mud drainage slot is mutually non-interference with overflow groove.For ease of maintenance, this bracing frame is also provided with helper and walkway.
Further, described Qing Gua mechanism comprises and to be connected with pretreatment pool and it to have the link span 251 of track, installs clear scraper plate 252 in orbit, and for driving clear scraper plate along the drive-motor 253 of rail moving.Scrape clearly for the ease of multi-faceted floating matter, in further improving, concentric twice circular orbit can also be set on pretreatment pool, link span is then arranged on this circular orbit by movable parts such as rollers, and the power set that link span can be driven along this circular orbit movement is set thereon, as motor etc., so that the different positions that Qing Gua mechanism can move on pretreatment pool when needed carries out work, with it ordinatedly, mud drainage slot is periphery in the outer part of the radial direction of pretreatment pool, and overflow groove can be arranged on pretreatment pool in the outer part, also the middle part of pretreatment pool can be arranged on.
Further, described stirring runner comprises the rotating shaft 254 of hollow and several blade 255 be fixedly connected with rotating shaft, each blade is equipped with the air supply channel 256 be all communicated with outside with spindle central, described air feeder is communicated with rotary shaft hollow portion, wherein air feeder can select the equipment such as air compressor, and rotating shaft is driven by power-equipments such as motors.Upon rotation of the blade, vacuum zone can be formed on rear side of the blade of these indoor, the air that air feeder provides just enters under water by the hollow channel of rotating shaft and the air supply channel of blade, the air simultaneously entered also can be smashed by blades turning, form microbubble, be adsorbed on the suspended solid SS in water and make it to float up to the water surface, thus removed by Qing Gua mechanism, but also can operationally prevent waste water from being poured in down a chimney by air supply channel.In order to equipment performance, rotating shaft and blade adopt unitary design, power-equipment drives outside liquid, the link position of air feeder and rotating shaft is near power-equipment, to reduce its sealing requirements, in the position that air feeder connects, rotating shaft wall is provided with the ventilating pit outside multiple connection hollow channel and rotating shaft, this section of rotating shaft is provided with one outward and closes and the housing is communicated with air feeder, so as when rotation air feed.
Further, the other end of described shore pipe is connected with storage mud tank 25, for collecting the foreign material such as mud, SS of discharge, and shore pipe has a horizontal section, be provided with spiral propeller 257 in this section, under the help of this spiral propeller, the foreign material such as mud can enter storage mud tank quickly.In further improving, at the tube wall of this horizontal section of shore pipe, several permeability hole can be set, and the protective shell of one deck sealing is set in its external parcel, and this protective shell and the pipeline communication be connected except hard device, promote the foreign material such as mud thus to enter to store up in the process of mud tank to the squeezing action that these foreign material produce at spiral propeller, liquid in foreign material is extruded by these permeability holes, and be collected in a protective case and be transmitted back in subsequent handling, the water content of the foreign material such as these mud can also be reduced simultaneously, make the foreign material entering storage mud tank more dry, be processed better so that it is stored better in storage mud tank with follow-up.
More specifically, described comprise that feed-water end is communicated with pretreatment unit except hard device remove hard tank body 31, with the doser 32 removing hard tank body and be connected, and be arranged at except the strainer in hard tank body, wherein, except the water side of hard tank body holds Inlet and outlet water separating and filtering membranous system to be communicated with same.Except hard tank body can adopt conventional tank body, be add as sodium carbonate Na in waste water by doser
2cO
3regulate the pH value of waste water Deng alkaloids, and impel the calcium ions and magnesium ions in waste water to form magnesium hydroxide Mg (OH)
2, calcium hydroxide Ca (OH)
2deng throw out, and be filtered.
More specifically, describedly filtration unit is provided with except hard device and with holding between Inlet and outlet water separating and filtering membranous system.This filtration unit comprises the mechanical filter 4 be communicated with except hard device water side, and is arranged on end Inlet and outlet water separating and filtering membranous system water inlet front end and the first cartridge filter 5 be communicated with mechanical filter.Wherein, mechanical filter adopts quartz filter, namely loads quartz sand effect filter packing in tank interior, retains except the middle suspended substance that anhydrates, organism, colloidal particles, microorganism, chlorine smell taste and part heavy metal ion; Cartridge filter mainly adopts the metals such as stainless steel as shell; the inner spray welding filter element loading PP material; the subtitle substance left in step before filtering; as small quartz sand etc.; subsequent step is played a protective role; its filtering accuracy reaches 10 ~ 20 μm, and wherein mechanical filter and cartridge filter can adopt the existing product that can meet aforementioned claim on the market.
More specifically, described same end Inlet and outlet water separating and filtering membranous system comprises the one-level same end Inlet and outlet water isolated filter membrane post group 6 be communicated with successively by pipeline, buffer tank 7, first topping-up pump 8 and secondary are with end Inlet and outlet water isolated filter membrane post group 9, wherein, one-level is communicated with the first cartridge filter with the feed-water end of end Inlet and outlet water isolated filter membrane post group, secondary is connected with Graceful water pipe with the water side of end Inlet and outlet water isolated filter membrane post group, one-level, secondary is formed in parallel with the isolated filter membrane post of end Inlet and outlet water by multiple with end Inlet and outlet water isolated filter membrane post group, usual one-level will more than secondary with holding in Inlet and outlet water isolated filter membrane post group with the same end Inlet and outlet water isolated filter membrane post in end Inlet and outlet water isolated filter membrane post group, and secondary is held in Inlet and outlet water isolated filter membrane post group usually above one-level is same with the filtering accuracy of the same end Inlet and outlet water isolated filter membrane post in end Inlet and outlet water isolated filter membrane post group.This comprises the pipe bearing shell by upper and lower ends flange seal with the isolated filter membrane post of end Inlet and outlet water, be arranged at the reverse dish of fluid at the inner two ends up and down of this pipe bearing shell respectively, be laminated in the multiple spaced support flow guiding disc between upper and lower two reverse dishes of fluid and diaphragm, sealed pipe pressure-bearing inner casing between upper and lower two reverse dishes of fluid, liquid-inlet pipe, drain pipe, and draw-in bar, specifically structure and function are 201310696565.3 at number of patent application for they, invention and created name is be documented in the document with the isolated filter membrane post of end Inlet and outlet water, the present embodiment repeats no more.
Further, described with holding Inlet and outlet water separating and filtering membranous system also to comprise by bypass line and same the second cartridge filter 10 holding the feed-water end of Inlet and outlet water isolated filter membrane post group to be connected of one-level, the second topping-up pump 11 be connected with the second cartridge filter, and the cleaning water tank 12 to be connected with the second topping-up pump, wherein, cleaning water tank can external scavenging solution, scavenging solution usually by pure water and cleaning solvent formulated.During normal use, close the valve of i.e. the second cartridge filter front end in bypass line, when needs cleaning one-level or secondary are with end Inlet and outlet water isolated filter membrane post group, close one-level with the valve of end Inlet and outlet water isolated filter membrane post group front end and the valve opening bypass line can clean.
Above-described embodiment is only the preferred embodiments of the present invention, not limiting the scope of the invention, as long as adopt principle of design of the present invention, and the change carried out non-creativeness work on this basis and make, all should belong within protection scope of the present invention.
Claims (10)
1. integrated oil gas field wastewater treatment system, it is characterized in that, comprise integrated box, be arranged on connected in turn by pipeline in integrated box pretreatment unit, except hard device, with end Inlet and outlet water separating and filtering membranous system, and with pretreatment unit and the control cabinet for power distribution that is all connected except hard device, wherein, wastewater inlet pipe is connected with pretreatment unit, and Graceful water pipe holds Inlet and outlet water separating and filtering membranous system to be connected with same.
2. integrated oil gas field wastewater treatment system according to claim 1, it is characterized in that, described pretreatment unit comprises the bracing frame be connected with integrated box, be arranged at the pretreatment pool that bracing frame top is oblate cylinder body shape, be arranged at pretreatment pool central position and the water inlet solarization air cell be connected with wastewater inlet pipe, the air feeder being arranged at the stirring runner in Jin Shui solarization air cell and being connected with stirring runner, be arranged at the Qing Gua mechanism of pretreatment pool top radially action, the radial direction being arranged at pretreatment pool in the outer part and the mud drainage slot corresponding with scraping clearly mechanism position, the shore pipe be connected with mud drainage slot, be arranged at the sludgd deposition groove be connected bottom pretreatment pool and with shore pipe, and be arranged at the overflow groove of pretreatment pool side, wherein, water inlet solarization air cell top is directly communicated with pretreatment pool, be communicated with pretreatment pool by reflux line bottom water inlet solarization air cell, overflow groove is connected by pipeline with except hard device.
3. integrated oil gas field wastewater treatment system according to claim 2, it is characterized in that, described Qing Gua mechanism comprises and to be connected with pretreatment pool and it to have the link span of track, installs clear scraper plate in orbit, and for driving clear scraper plate along the drive-motor of rail moving.
4. integrated oil gas field wastewater treatment system according to claim 2, it is characterized in that, described stirring runner comprises the rotating shaft of hollow and several blade be fixedly connected with rotating shaft, each blade is equipped with the air supply channel be all communicated with outside with spindle central, described air feeder is communicated with rotary shaft hollow portion.
5. integrated oil gas field wastewater treatment system according to claim 2, is characterized in that, the other end of described shore pipe is connected with storage mud tank, and shore pipe has a horizontal section, is provided with spiral propeller in this section.
6. the integrated oil gas field wastewater treatment system according to any one of claim 1 ~ 5, it is characterized in that, described comprise that feed-water end is communicated with pretreatment unit except hard device remove hard tank body, the doser be connected with except hard tank body, and be arranged at except the strainer in hard tank body, wherein, except the water side of hard tank body holds Inlet and outlet water separating and filtering membranous system to be communicated with same.
7. integrated oil gas field wastewater treatment system according to claim 6, is characterized in that, is describedly provided with filtration unit except hard device and with holding between Inlet and outlet water separating and filtering membranous system.
8. integrated oil gas field wastewater treatment system according to claim 7, it is characterized in that, described filtration unit comprises the mechanical filter be communicated with except hard device water side, and is arranged on end Inlet and outlet water separating and filtering membranous system water inlet front end and the first cartridge filter be communicated with mechanical filter.
9. integrated oil gas field wastewater treatment system according to claim 8, it is characterized in that, described same end Inlet and outlet water separating and filtering membranous system comprises the one-level be communicated with successively by pipeline, and with holding, Inlet and outlet water isolated filter membrane post group, buffer tank, the first topping-up pump and secondary are same holds Inlet and outlet water isolated filter membrane post group, wherein, one-level is communicated with the first cartridge filter with the feed-water end of end Inlet and outlet water isolated filter membrane post group, and secondary is connected with Graceful water pipe with the water side of end Inlet and outlet water isolated filter membrane post group.
10. integrated oil gas field wastewater treatment system according to claim 9, it is characterized in that, described with holding Inlet and outlet water separating and filtering membranous system also to comprise by bypass line and same the second cartridge filter holding the feed-water end of Inlet and outlet water isolated filter membrane post group to be connected of one-level, the second topping-up pump be connected with the second cartridge filter, and the cleaning water tank be connected with the second topping-up pump.
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| CN201410537994.0A CN104261581B (en) | 2014-10-14 | 2014-10-14 | Integrated oil gas field wastewater processing system |
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| CN201410537994.0A CN104261581B (en) | 2014-10-14 | 2014-10-14 | Integrated oil gas field wastewater processing system |
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| CN104261581B (en) | 2016-09-14 |
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