CN101786755A - Coal bed gas produced water deep treatment equipment - Google Patents
Coal bed gas produced water deep treatment equipment Download PDFInfo
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- CN101786755A CN101786755A CN201010135648A CN201010135648A CN101786755A CN 101786755 A CN101786755 A CN 101786755A CN 201010135648 A CN201010135648 A CN 201010135648A CN 201010135648 A CN201010135648 A CN 201010135648A CN 101786755 A CN101786755 A CN 101786755A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
The invention discloses coal bed gas produced water deep treatment equipment which comprises a raw water tank; the raw water tank is communicated with a solar heat collector through a raw water pump; the water outlet of the solar heat collector is communicated with the raw water side of a hydrophobic membrane component; the outlet of the freshwater side of the hydrophobic membrane component is communicated with an exhaust pipe of a vacuum ejector, and a water production tank is communicated with a water inlet and outlet pipe of the vacuum ejector through a water production pump; and the outlet of the raw water side of the hydrophobic membrane component is communicated with an evaporation tank. The treatment equipment can most recover coal bed gas produced water resource and most reduce the emission of pollutant, solves the difficult problems of coal bed gas field explored domestic water supply and environment protection, is characterized by advanced and reliable process, high automation degree, light weight, and convenient movement and transportation, greatly reduces the environment pollution so that the water drainage meets the environment protection standards, uses natural and green solar refrigeration, effectively improves the temperature of the solution to be treated, improves the separation efficiency and effect, and simultaneously, saves energy and reduces the cost.
Description
Technical field
The present invention relates to a kind of water treating equipment, is a kind of equipment that coal bed gas produced water deep is handled that is applied to specifically.
Background technology
China is one of the abundantest country of coal bed gas resource in the world, coal-seam gas with resource potential, high-grade energy and industrial chemicals, bury supremacy clauses such as shallow, that cost of development is low, the time of being benefited is long and be much accounted of day by day.But in general, the exploitation of coal-seam gas can bring the high recovered water of salinity, and these recovered waters need be through handling up to standard could the discharging later.And that the exploitation of coal-seam gas also has the exploitation areal distribution is wide, and various places are more and more stricter to environmental requirement.
As exploitation enterprise, need to solve the processing of the recovered water in the recovery process and satisfy local environmental requirement, also can ensure field work employee's living-hygienic water demand simultaneously.The recovered water water quality in different location and colliery also has difference, and difference such as the envrionment conditions of various places are just bigger; So various places require also to differ widely to the degree of depth of produced water disposal, the strictest requirement of some places reaches pollutent " zero release ".But because the coal bed gas produced water yield is less, the pit mining time is shorter, and this has just brought a difficult problem to the selection of the treatment process of recovered water.
The main technique that present coal bed gas produced water treatment is taked has: remove cinder through the aeration tank aeration and sedimentation, behind reduction iron and the organic content, get supernatant liquor and further handle by desalination plant.The main technique of desalting treatment has: reverse osmosis membrane, electrodialysis embrane method, evaporation tank method and ion exchange method, but all there is shortcoming in these desalinating process.The evaporation tank method needs a large amount of thermals source; After reverse osmosis membrane and electrodialysis embrane method dispose, and 1/4 the dense water of also having an appointment needs discharging; Ion exchange method need adopt salt solution or acid-alkali regeneration, and the whereabouts of high density regenerative wastewater also is a problem.Comprehensive: the evaporation tank method need expend a large amount of energy, reverse osmosis membrane, electrodialysis embrane method and ion-exchange rule can produce dense water or regenerative wastewater, if these dense water or regenerative wastewater discharging, will offset the effect of last stage art breading greatly, final pollutent does not reduce the harm to environment.
Summary of the invention
In order to overcome the shortcoming that prior art exists, condition according to the field work scene, the invention provides a kind of coal bed gas produced water deep treatment equipment, it can further be handled dense water or regenerative wastewater, reclaim water resources wherein, the waste water of high density is not discharged in the environment on the spot, avoids local soil is caused detrimentally affect.
The present invention adopts the hydrophobic membrane treatment technology, utilize sun power as thermal source, to handle the remaining dense water in back through reverse osmosis method or electrodialysis embrane method, and the regenerative wastewater after the ion exchange resin treatment is further processed, remain a small amount of high-concentration waste water at last by evaporation concentration, become solid waste and bury processing by concentrating.
A kind of coal bed gas produced water deep treatment equipment, it comprises former pond, former pond is communicated with solar energy collector by raw water pump, the water outlet of solar energy collector is communicated with the former water side of hydrophobic membrane assembly, the dilute side outlet of hydrophobic membrane assembly is communicated with the extraction pipe of vacuum ejector, produces the pond and is communicated with the water inlet pipe and water outlet pipe of vacuum ejector by producing water pump; The former water side outlet of hydrophobic membrane assembly is communicated with evaporation tank.
Wherein, be provided with strainer between described raw water pump and the solar energy collector.
Wherein, be provided with interchanger between described product pond and the vacuum ejector.
Wherein, it also comprises a rectangular casing that has rotor wheel, and described former pond is located at the left side of casing, and described raw water pump is oppositely arranged along the short side direction and the former pond of casing; Produce the pond, produce the right side that water pump is arranged on casing, between raw water pump and product water pump, be provided with strainer and hydrophobic membrane assembly from left to right successively, be provided with interchanger between former pond and the product pond; Vacuum ejector is arranged on the top of producing the pond; Solar energy collector is arranged on the position that casing is convenient to receive sun power outward.
Wherein, in former pond and product pond, be respectively equipped with under meter.
Wherein, described solar energy collector is the super heat-conductive pipe solar energy collector.
The present invention adopts hydrophobic membrane, and the dense hydromining that needs are handled enters a side of hydrophobic membrane after with solar heating or the heating of other method, is referred to as former water side; Opposite side, promptly dilute side adopts the mode that vacuumizes to make dilute side form vacuum environment.Promptly the vapor pressure difference with the hydrophobic membrane both sides is a motivating force, separates water and organism in dense water or the regenerative wastewater.Because the hydrophobicity of hydrophobic membrane, the aqueous solution of former water side can not see through film and enter dilute side; And the water vapor pressure on former water side form surface is higher than dilute side, and the fenestra that water vapour will see through hydrophobic membrane enters dilute side from former water side, thereby reaches the concentrated dense water of processing or the purpose of reuse water of needing.
The temperature that improves dense water or reuse water is to improve the effective means of the steam partial pressure of former water side solution.Consider that coal-bed gas exploitation mostly is located in remoter place, the energy is more in short supply, substantially do not have the condition that high-temperature steam heats, not only thermo-efficiency is very low and adopt electrically heated mode, and the electric energy supply also is a problem, even electric energy is more abundant, the electric energy expense that is consumed makes that also processing costs does not have economic feasibility.In order to address this problem, the present invention adopts the mode of solar heating.Since treatment process need rate of heating fast, prevent that scale effect from conducting heat, common electron tubes type solar energy collector can not satisfy process requirements, the present invention adopts the super heat-conductive pipe solar energy collector, and its adaptive temperature scope is big, can adapt to the wide characteristics in coal-bed gas exploitation zone; Can bearing operation, can adapt to water pump and play the circulation heating, stable, owing to do not leak water in the heat pipe, single or several heat pipes break and also do not influence operation; Be not afraid of fouling,, do not have the problem of scale effect heat absorption owing to do not leak water in the heat pipe; Do not go up the water time limitation, can random time on water running.
Comprehensive; the present invention has following advantage: (1) this treatment facility can reclaim coal bed gas produced water resources to greatest extent; reduce the discharging of pollutent to greatest extent; solve the domestic water supply of the open-air exploitation of coal-seam gas and the difficult problem of protection environment, have technology advanced reliable, level of automation is high, equipment is light is convenient to move and the characteristics of transportation.
(2) the dense water after concentrating through hydrophobic membrane or reuse water has reached or near crystalline concentration, because most of water has all reclaimed use, this part water yield dense water or reuse water solution seldom passes through evaporation tank again, with sunlight is main heating source, evaporate behind the moisture wherein remaining solid or pasty substance and put together, bury or carry out burning disposal according to its toxic substance content; Greatly reduce environmental pollution, make discharge water reach environmental protection standard.
(3) utilize the sun power of natural green, the means by pump circulation effectively solve the slow-footed problem of solar heating, and solve the scale problems in the heat-processed, effectively improve the temperature of required solution to be processed; Improved isolating efficient, effect, save energy reduces cost simultaneously.
(4) former pond, raw water pump, strainer, hydrophobic membrane assembly, the equipment such as pond, product water pump, interchanger, vacuum ejector that produce are combined in the removable casing, and display monitoring instrument such as flow, pressure, temperature, conductivitimeter are installed and equipment moves necessary electrical control equipment, not only satisfy the requirement of field work, also can be easily along with the change in coal-bed gas exploitation place quick travel install, embodied characteristics easy for installation, that be convenient to move.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a schema of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is the vertical view of Fig. 2.
Embodiment:
Below in conjunction with accompanying drawing the present invention is done further explanation.
As shown in Figure 1, dense water after reverse osmosis method or electroosmose process are handled and the chemical regeneration after the ion exchange resin treatment and flushing waste water contain the very mineral substance of high density, dense water or flushing waste water enter former pond 1, and dense water in the former pond 1 or flushing waste water enter solar energy collector 3 after boosting through raw water pump 2; After being heated, dense water or flushing waste water enter the former water side of hydrophobic membrane assembly 4.Because the temperature of dense water or flushing waste water is higher, and former water side is a malleation, the steam partial pressure of former water side is greater than the water vapor pressure of hydrophobic membrane dilute side, so in the dilute side that the water vapor of hydrophobic pleurodiaphragmatic in terspace water side enters film by fenestra, dope then enter dilute side because the hydrophobicity of hydrophobic membrane can not see through fenestra.The remaining dense water of former water side is back in the former pond 1 by dense water pipe, mineral concentration by the former water side in circulation back is more and more higher like this, reach at last or near crystallization concentration, again dense water is transported in the evaporation tank 8, fall most of remaining moisture by sunlight or heating evaporation, become pasty substance to put together at last and handle.The fresh water that reclaims is collected in and produces in the pond 6, fresh water enters vacuum ejector 5 by producing after water pump 7 boosts, the valve tube of vacuum ejector 5 links to each other with the dilute side of hydrophobic membrane assembly 4, extract the water vapor that sees through hydrophobic membrane, and the certain vacuum tightness of dilute side of maintenance hydrophobic membrane, the steam partial pressure of guaranteeing the hydrophobic membrane dilute side is lower than certain numerical value, the water vapor that sees through hydrophobic membrane is drawn into vacuum ejector 5 backs and mixing of fresh water condensation, because this part water is to be formed by water vapor condensation, so the content of mineral substances in the water is extremely low, reached the standard of various reuse waters fully.
As Fig. 2, shown in Figure 3, coal bed gas produced water deep treatment equipment of the present invention, it comprises former pond 1, and the dense water of need handling enters former pond 1, and former pond 1 is communicated with raw water pump 2 by pipeline, the ball valve that is installed on the pipeline; Control certain flow and read data on flows by valve after raw water pump 2 boosts under meter.Raw water pump 2 is communicated with solar energy collector 3, the water outlet of solar energy collector 3 is communicated with hydrophobic membrane assembly 4 former water side-entrance pipes, the dilute side outlet of hydrophobic membrane assembly 4 is communicated with the extraction pipe of vacuum ejector 5, produces pond 6 and is communicated with the Inlet and outlet water side of vacuum ejector 5 by producing water pump 7.In order to protect hydrophobic membrane assembly 4; prevent to be scratched by solid particulate bigger in the water; be provided with strainer 9 between raw water pump 2 and solar energy collector 4, the dense water that needs to handle is at first by solid particulate bigger in the strainer 8 filtering water (if directly the dense water that comes out from the reverse-osmosis treated device can not need).
The former water side outlet of hydrophobic membrane assembly 4 is communicated with evaporation tank 8.The dense water of need handling enters the former water side that enters hydrophobic membrane assembly 4 behind 10～40 ℃ of solar energy collector 3 heat temperature raisings, in order to alleviate the pollution tendency of hydrophobic membrane assembly 4, keeps the certain flow velocity in film surface in control pressure.Through carrying concentrate recirculation after dense to former pond 1, more further by hydrophobic membrane assembly 4 concentration.
In order to keep the certain vacuum tightness of hydrophobic membrane assembly 4 dilute side, adopt vacuum ejector 5 to vacuumize.In order to reduce the temperature that enters the water in the vacuum ejector 5, make vacuum ejector 5 interior water take away the better effects if of water vapour, between product pond 6 and vacuum ejector 5, be provided with interchanger 10.Detailed process is to produce the water in pond 6 by after producing water pump 7 superchargings, enters vacuum ejector 5 after at first cooling off by interchanger 9, and gets back to product pond 6; The extraction pipe of vacuum ejector 5 is connected with the dilute side of hydrophobic membrane assembly 4, and the water vapour that sees through hydrophobic fenestra enters and is drawn into vacuum ejector 5 after the dilute side of hydrophobic membrane assembly 4 and mixes afterwards water vapour with water and be cooled to liquid state and enter product pond 6.Dense water is through after the circular treatment repeatedly, and salt concn is more and more higher and near crystallization concentration in the water, this part water is squeezed into evaporation tank by water pump, further evaporation process.
For rate of heating being provided faster, preventing that scale effect from conducting heat, described solar energy collector 3 is the super heat-conductive pipe solar energy collector.
In former pond 1 and product pond 6, be respectively equipped with under meter, in order to the flow of observation water; Simultaneously on the pipeline of device, a plurality of ball valves of being convenient to control are housed, and display monitoring instrument such as tensimeter, thermometer, conductivitimeter and equipment moves necessary electrical control equipment, make whole process control easily, easy to operate.
In order to make the present invention be convenient to move, conveniently use in the open air, the present invention is except solar energy collector 3, in the casing 11 that the convenience that all is arranged on all devices moves, each integral part is compact arrangement in casing 11, and whole floor space is little, carries, transports convenient.
Described casing 11 is a rectangular parallelepiped, and casing 11 bottoms have rotor wheel.Described former pond 1 is located at the left side of casing 11, and described raw water pump 2 is oppositely arranged along the short side direction and the former pond 1 of casing 11; Produce pond 6, produce the right side that water pump 7 is arranged on casing 11, respectively at former pond 1, raw water pump 2 position symmetries.Between raw water pump 2 and product water pump 7, be provided with strainer 8 and hydrophobic membrane assembly 4 from left to right successively, be provided with interchanger 9 between former pond 1 and the product pond 6.Vacuum ejector 5 is arranged on the top of producing pond 6; Solar energy collector 3 is arranged on the casing 11 outer positions of being convenient to receive sun power.
Claims (6)
1. coal bed gas produced water deep treatment equipment, it is characterized in that: it comprises former pond (1), former pond (1) is communicated with solar energy collector (3) by raw water pump (2), the water outlet of solar energy collector (3) is communicated with the former water side of hydrophobic membrane assembly (4), the dilute side outlet of hydrophobic membrane assembly (4) is communicated with the extraction pipe of vacuum ejector (5), produces pond (6) and is communicated with the water inlet pipe and water outlet pipe of vacuum ejector (5) by producing water pump (7); The former water side outlet of hydrophobic membrane assembly (4) is communicated with evaporation tank (8).
2. a kind of coal bed gas produced water deep treatment equipment according to claim 1 is characterized in that: be provided with strainer (9) between described raw water pump (2) and the solar energy collector (4).
3. a kind of coal bed gas produced water deep treatment equipment according to claim 2 is characterized in that: be provided with interchanger (10) between described product pond (6) and the vacuum ejector (5).
4. a kind of coal bed gas produced water deep treatment equipment according to claim 3, it is characterized in that: it also comprises a rectangular casing (11) that has rotor wheel, described former pond (1) is located at the left side of casing (11), and described raw water pump (2) is oppositely arranged along short side direction and former pond (1) of casing (11); Produce pond (6), produce the right side that water pump (7) is arranged on casing (11), between raw water pump (2) and product water pump (7), be provided with strainer (8) and hydrophobic membrane assembly (4) from left to right successively, be provided with interchanger (9) between former pond (1) and the product pond (6); Vacuum ejector (5) is arranged on the top of producing pond (6); Solar energy collector (3) is arranged on the outer position of being convenient to receive sun power of casing (11).
5. a kind of coal bed gas produced water deep treatment equipment according to claim 1 is characterized in that: be respectively equipped with under meter in former pond (1) and product pond (6).
6. a kind of coal bed gas produced water deep treatment equipment according to claim 1 is characterized in that: described solar energy collector (3) is the super heat-conductive pipe solar energy collector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010135648A CN101786755A (en) | 2010-03-30 | 2010-03-30 | Coal bed gas produced water deep treatment equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010135648A CN101786755A (en) | 2010-03-30 | 2010-03-30 | Coal bed gas produced water deep treatment equipment |
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| CN101786755A true CN101786755A (en) | 2010-07-28 |
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| CN201010135648A Pending CN101786755A (en) | 2010-03-30 | 2010-03-30 | Coal bed gas produced water deep treatment equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102060363A (en) * | 2010-12-31 | 2011-05-18 | 中国矿业大学 | Method for coagulating coal-bed gas produced water |
| CN102745830A (en) * | 2011-04-18 | 2012-10-24 | 中国科学院研究生院 | Movable treatment assembly for water generated from coalbed gas |
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| CN101319821A (en) * | 2007-06-06 | 2008-12-10 | 喜春野 | Construction flat plate shaped split wall hanging vacuum solar superconducting heat collection apparatus |
| CN101327407A (en) * | 2007-06-20 | 2008-12-24 | 天津工业大学 | Apparatus and method for evaporating and concentrating liquid |
| CN101468825A (en) * | 2007-12-27 | 2009-07-01 | 中国科学院生态环境研究中心 | Solar energy water heater and water purification machine integrated apparatus |
| CN101564648A (en) * | 2008-04-23 | 2009-10-28 | 天津工业大学 | Device and method for concentrating and separating chemical products |
| CN201756487U (en) * | 2010-03-30 | 2011-03-09 | 江苏兴邦环保工程科技有限公司 | Depth processing equipment for extracted water from coalbed methane |
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2010
- 2010-03-30 CN CN201010135648A patent/CN101786755A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101319821A (en) * | 2007-06-06 | 2008-12-10 | 喜春野 | Construction flat plate shaped split wall hanging vacuum solar superconducting heat collection apparatus |
| CN101327407A (en) * | 2007-06-20 | 2008-12-24 | 天津工业大学 | Apparatus and method for evaporating and concentrating liquid |
| CN101468825A (en) * | 2007-12-27 | 2009-07-01 | 中国科学院生态环境研究中心 | Solar energy water heater and water purification machine integrated apparatus |
| CN101564648A (en) * | 2008-04-23 | 2009-10-28 | 天津工业大学 | Device and method for concentrating and separating chemical products |
| CN201756487U (en) * | 2010-03-30 | 2011-03-09 | 江苏兴邦环保工程科技有限公司 | Depth processing equipment for extracted water from coalbed methane |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102060363A (en) * | 2010-12-31 | 2011-05-18 | 中国矿业大学 | Method for coagulating coal-bed gas produced water |
| CN102060363B (en) * | 2010-12-31 | 2012-03-07 | 中国矿业大学 | Method for coagulating coal-bed gas produced water |
| CN102745830A (en) * | 2011-04-18 | 2012-10-24 | 中国科学院研究生院 | Movable treatment assembly for water generated from coalbed gas |
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Open date: 20100728 |