CN105502654A - Three-phase separator for internal circulation anaerobic reactor - Google Patents
Three-phase separator for internal circulation anaerobic reactor Download PDFInfo
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- CN105502654A CN105502654A CN201610111966.1A CN201610111966A CN105502654A CN 105502654 A CN105502654 A CN 105502654A CN 201610111966 A CN201610111966 A CN 201610111966A CN 105502654 A CN105502654 A CN 105502654A
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- effuser
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2866—Particular arrangements for anaerobic reactors
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- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The invention discloses a three-phase separator for an internal circulation anaerobic reactor. The three-phase separator comprises at least one gas collecting hood layer and gas collecting pipes arranged below the gas collecting hoods, each gas collecting hood layer comprises at least one gas collecting hood of an inverted-V-shaped structure, and two ends of each gas collecting hood along the length direction are arranged on the sidewall of the reactor perpendicularly. Each gas collecting pipe is positioned in the corresponding inverted-V-shaped structure and is parallel to two oblique planes of the corresponding inverted-V-shaped structure. Two ends of each gas collecting pipe are closed, wherein one end of the gas collecting pipe is positioned in the reactor while the other end thereof passes through the sidewall of the reactor perpendicularly to extend out of the reactor. A row of gas collecting holes is formed in the lower side of each gas collecting pipe along the length direction of the gas collecting pipe. The three-phase separator for the internal circulation anaerobic reactor has the advantages that one row of gas collecting holes is formed in the lower side of each gas collecting pipe along the length direction of the gas collecting pipe, and rising methane is collected via the gas collecting holes, so that liquid carried by the rising methane is more uniform, and carried fine particles are fewer.
Description
Technical field
The present invention relates to a kind of triphase separator, specifically a kind of triphase separator for internal-circulation anaerobic reactor.
Background technology
Below background of related of the present invention is described, but these explanations might not form prior art of the present invention.
Triphase separator is the soul place of the anaerobic reactors such as UASB, EGSB, IC, and the quality of triphase separator design directly has influence on the effect of anaerobic reactor.Internal-circulation anaerobic reactor (IC) is a kind of high efficiency anaerobic reactor grown up on the basis of upflow anaerobic sludge blanket reactor (UASB).IC is due to causes such as internal recycle and upflow velocity height, and the appropriate design of triphase separator is just particularly important.
Usually, IC has two reaction zones, reaction zone (is namely descended in first reaction zone, also claim main reaction region) and second reaction zone (namely go up reaction zone, also auxiliary reaction zone is claimed), first reaction zone heavy-duty service, second reaction zone underrun, each reaction zone is respectively equipped with one-level triphase separator.
At present, the triphase separator that extensively adopts of IC as Figure 1-3.The biogas that reaction produces drives mixed solution to be collected by collection chamber 3 in gas skirt 1 and enters collecting tray 2, then enters gas-liquid separator from upspout 4 after being collected by collecting tray 2.In collection chamber 3, away from collecting tray 2 part, such as close to the position of IC sidewall of reactor 6, because gas flow rate is lower, liquid-gas interface horizontal direction geo-stationary.From apart from collecting tray 2 distalmost end in collection chamber, gas flow horizontal direction flow velocity slowly accelerates from zero, maximum to flow velocity during the porthole 5 that collecting tray communicates with collection chamber.Due to the difference of cement power and inertia, when gas flow rate reaches some amount, liquid just horizontal flow thereupon; When liquid arrives certain speed, drag force just drives granule sludge to move horizontally.So just cause distance collecting tray 2 farthest minimum by the liquid phase flow of gas entrainment, and distance collecting tray 2 is more closely larger by the liquid phase flow of gas entrainment, cause liquid phase in reactor to be very unevenly brought into gas-liquid separator, thus reactor clearance reduce; And distance collecting tray 2 is nearer, because gas flow rate is larger, the tail of gas inhale and the absorption seizure effect to the fine particle mud of the poor mud of settleability and rising bubble 8 interfacial adsorption of the microvovtex that formed stronger, form gas-liquid-solid three-phase interfacial layer 7, this interfacial layer has more than the more violent gas-liquid turbulent flow distribution of inside reactor, cause fine particle mud more broken loose, broken loose mud is brought into gas-liquid separator with gas, broken loose mud enters the first reaction chamber with return line again, easily makes reactor water outlet muddy.
Summary of the invention
The object of the invention is to be the deficiency for existing internal-circulation anaerobic reactor triphase separator, provide a kind of liquid that rising bubble is carried secretly evenly and carry the less triphase separator of fine particle secretly.
According to the triphase separator for internal-circulation anaerobic reactor of the present invention, comprising: at least one deck gas skirt and the effuser be arranged on below each gas skirt, every layer of gas skirt comprises at least one gas skirt; Wherein,
Gas skirt is inverted V-shape structure, and gas skirt is vertically set in sidewall of reactor along the two ends of its length direction;
Effuser is positioned at inverted V-shape structure and parallel with two inclined-planes of inverted V-shape structure; The closed at both ends of effuser, wherein one end is positioned at reactor, the other end passes perpendicularly through sidewall of reactor and extend out to outside reactor; The downside of effuser is offered one along the length direction of effuser and is arranged in a row pore.
Preferably, described triphase separator comprises at least two-layer gas skirt, is interspersed between adjacent two layers gas skirt; The below of each gas skirt arranges an effuser.
Preferably, in reactor, the effuser of sustained height is merged into a return line after stretching out reactor, confluxes in the return line of the gas collected of the effuser of sustained height outside reactor.
Preferably, in lower floor's effuser, the aperture of gas collection hole is greater than the aperture of gas collection hole in the effuser of upper strata; And/or the spacing in lower floor's effuser between adjacent two gas collection holes is less than the spacing in the effuser of upper strata between adjacent two gas collection holes; And/or the caliber of lower floor's effuser is greater than the caliber of upper strata effuser.
Preferably, effuser is positioned at the top of the inverted V-shape structure of gas skirt.
Preferably, every layer comprises at least two gas skirts and effuser; At least one deck effuser distributes in the following manner:
Be parallel to each other between any two effusers;
Or all effusers radially distribute, be not parallel to each other between any two effusers;
Or, be parallel to each other between at least two effusers, in acute angle between at least one effuser and described at least two effusers;
Or, this layer is divided at least two gas collection areas under control, effuser in each gas collection area under control: be parallel to each other between any two effusers, or all effusers radially distribute, be not parallel to each other between any two effusers, or be parallel to each other between at least two effusers, between described at least two effusers at least one effuser and this gas collection area under control in acute angle.
Preferably, two effusers be parallel to each other extend out to outside reactor along identical or contrary direction through sidewall of reactor.
Preferably, be parallel to each other between two effusers of different layers and/or form acute angle.
Preferably, one end of described effuser is fixed in sidewall of reactor.
Preferably, the cross section of described effuser be oval, Polygons or by line segment and camber line form irregularly shaped.
According to the triphase separator for internal-circulation anaerobic reactor of the present invention, comprising: gas skirt and effuser.The present invention offers one in the downside of effuser along the length direction of effuser and arranges in a row pore, collects rising biogas by gas collection hole, and the liquid that rising biogas can be made to carry secretly is evenly and to carry fine particle secretly less.
Accompanying drawing explanation
By the embodiment part provided referring to accompanying drawing, the features and advantages of the present invention will become easier to understand, in the accompanying drawings:
Fig. 1 is the triphase separator schematic diagram for IC in prior art;
Fig. 2 is the schematic diagram for gas skirt and backflash in the triphase separator of IC in prior art;
Fig. 3 is the principle schematic for the triphase separator of IC in prior art;
Fig. 4 is according to the triphase separator schematic diagram for internal-circulation anaerobic reactor of the present invention;
Fig. 5 is according to effuser in triphase separator of the present invention and sidewall of reactor schematic diagram;
Fig. 6 is according to sidewall of reactor of the present invention and the sectional view of effuser being positioned at reactor;
Fig. 7 a-7f is the distribution mode schematic diagram according to effuser in the preferred embodiment of the present invention;
Fig. 8 is the sectional view of Fig. 6 along A-A direction.
Embodiment
With reference to the accompanying drawings illustrative embodiments of the present invention is described in detail.Be only for demonstration object to the description of illustrative embodiments, and be never the restriction to the present invention and application or usage.
Triphase separator for internal-circulation anaerobic reactor according to the present invention comprises: at least one deck gas skirt 10 and the effuser 20 be arranged on below each gas skirt 10, every layer of gas skirt comprises at least one gas skirt.See Figure 4 and 5, gas skirt 10 is inverted V-shape structures, when bubble carrying of liquids and/or mud collide the inclined-plane of gas skirt 10 in uphill process, biogas in bubble is separated with mud with liquid, biogas continues to rise along the inclined-plane of gas skirt 10, the liquid and the mud that have departed from bubble keep falling under gravity, finally fall back in the reaction zone of reactor.In the reactor, vertical height is higher, and the gas flow of corresponding position is larger, the liquid wherein carried and/or mud fewer, methane quantity is also fewer.If gas skirt 10 is fixed in sidewall of reactor 30 obliquely, the gas volume that same gas skirt 10 different positions is collected is different, and the amount of the liquid carried secretly in the gas collected the closer to the position of below and mud is also likely more.In order to ensure to collect gas from sustained height, in the present invention, the two ends of gas skirt 10 along gas skirt 10 length direction are vertically set in sidewall of reactor 30.
One deck, two-layer or multilayer gas skirt can be comprised according to triphase separator of the present invention, the quantity of every layer of gas skirt also can require to confirm according to the size of reactor, gas skirt size and actually operating, such as: when in reactor, tolerance is less, 1-2 layer gas skirt can be set, reactor volume and tolerance larger time can adopt 3 layers or more layer gas skirts.Preferably, when triphase separator comprise at least two-layer gas skirt time, be interspersed between adjacent two layers gas skirt; The below of each gas skirt arranges an effuser.
Effuser 20 is positioned at inverted V-shape structure and parallel with two inclined-planes of inverted V-shape structure, gas skirt 10 and closed at both ends, wherein one end is positioned at reactor, the other end extend out to outside reactor, for collecting the gas after being separated with mud with liquid through sidewall of reactor 30.In the reactor, vertical height is higher, and the gas flow of corresponding position is larger, the liquid wherein carried and/or mud fewer, methane quantity is also fewer.If effuser 20 is obliquely through sidewall of reactor 30, the gas volume that same effuser 20 different positions is collected is different, and the amount of the liquid carried secretly in the gas collected the closer to the position of below and mud is also likely more.In order to ensure to collect gas from sustained height, in the present invention, the other end of effuser 20 extends perpendicularly through sidewall of reactor 30 and extend out to outside reactor.The height of effuser in reactor of same layer is identical, and the height of effuser in reactor of different layers is not identical.Preferably, effuser is positioned at the top of the inverted V-shape structure of gas skirt.
The shape of cross section of effuser can design according to actual needs, and the cross section of such as effuser is oval, as shown in Figure 8, the cross section of effuser also can be Polygons or by line segment and camber line form irregularly shaped.
In the triphase separator of prior art, see Fig. 3, collecting tray 2 is provided with the porthole 5 communicated with collection chamber 3, gas constantly enters in the process of collecting tray 2 along gas skirt 1, the closer to porthole 5, the flow velocity of gas is larger, easier entrained liquids, and distance collecting tray farthest is minimum by the liquid phase flow of gas entrainment, distance collecting tray is more closely larger by the liquid phase flow of gas entrainment, thus make liquid phase in reactor very unevenly be brought into gas-liquid separator, reduce the clearance of reactor.The present invention offers one in the downside of effuser 20 along the length direction of effuser 20 and arranges in a row pore 21, see Fig. 6, when bubble carrying of liquids and/or mud collide the inclined-plane of gas skirt 10 in uphill process, without the need to flowing into collecting tray along gas skirt 10 after biogas in bubble is separated with mud with liquid, but directly enter gas collection hole 21, by gas collection hole 21 by the collection and confinement of gases at different positions place below gas skirt 10 in effuser 20, because the pressure in effuser 20 is substantially identical, the liquid flow rate that gas is carried secretly by gas collection hole 21 is substantially identical at each gas collection hole 21, liquid entrainment non-uniform phenomenon in reactor can not be there is.Owing to being provided with effuser, because the present invention arranges in a row pore 21 by the collection and confinement of gases at different positions place below gas skirt 10 in effuser 20 by one, decrease the area that the gas that is collected contacts with the liquid level in reactor, greatly reduce because the tail suction of gas and the microvovtex of formation are to the seizure effect of subparticle, decrease the entrainment of gas to subparticle.In addition, owing to being provided with effuser 20, the possibility that the poor mud of settleability enters effuser 20 will reduce greatly, reduces the fine particle carried secretly in the gas collected.
The shape of gas collection hole 21 can design according to actual needs, and such as gas collection hole is oval, certainly, those skilled in the art also gas collection hole can be designed to Polygons or by line segment and camber line form irregularly shaped.
The aperture of gas collection hole 21 is larger, and the gas volume collected in the unit time is larger, but aperture is larger, and the crown_interception of gas collection hole 21 pairs of liquid or mud is less.In reactor, because position is higher, the liquid of the gas entrainment of corresponding position is relative with mud less, therefore, when designing the aperture of gas collection hole 21, the aperture of gas collection hole in lower floor's effuser can be made to be greater than the aperture of gas collection hole in the effuser of upper strata.The gas collection hole more than 21 that same effuser 20 is offered, the gas volume collected in the unit time is larger; Spacing between adjacent two gas collection holes 21 is less, and the gas collection hole 21 under same gas skirt 20 is more intensive, more abundant to the collection of gas.Therefore, when designing the gas collection hole 21 on effuser 20, the spacing in lower floor's effuser between adjacent two gas collection holes can be made to be less than spacing in the effuser of upper strata between adjacent two gas collection holes.In addition, the gas volume due to lower floor is generally greater than the gas volume on upper strata, in order to ensure the gas transmission ability of effuser 20, the caliber of lower floor's effuser can be made to be greater than the caliber of upper strata effuser.
Effuser 20 is connected with gas-liquid separator after sidewall of reactor 30 is stretched out.When same layer comprises at least two effusers, the effuser of same layer can be connected with gas-liquid separator after stretching out reactor respectively.Because the amount of the gas of every root effuser collection is less, in order to reduce the number of tubes outside reactor, simplify the structure of reactor, reduce the cost of reactor, the effuser of same layer is connected with gas-liquid separator after also can being merged into a return line after stretching out reactor again.
If every layer comprises at least two gas skirts and effuser, for any one deck, can in the following manner in any one design:
Mode 1: be parallel to each other between any two effusers, namely all effusers of this layer are arranged in parallel to each other, as shown in Figure 7a.
Mode 2: all effusers radially distribute, is not parallel to each other between any two effusers.Such as, one end of all effusers is positioned at reactor center, and the other end of all effusers passes perpendicularly through sidewall of reactor 30 along radial direction respectively, as shown in Figure 7 c; One end of all effusers is positioned at the optional position of reactor except reactor center, and the other end of all effusers passes perpendicularly through sidewall of reactor 30, as depicted in fig. 7f.
Be parallel to each other between mode 3: at least two effusers, in acute angle between at least one effuser and described at least two effusers, as shown in Fig. 7 b, 7d.
Mode 4: this layer is divided at least two gas collection areas under control, the effuser in each gas collection area under control: be parallel to each other between any two effusers; Or all effusers radially distribute, be not parallel to each other between any two effusers; Or, be parallel to each other between at least two effusers, in acute angle between described at least two effusers at least one effuser and this gas collection area under control, as shown in Fig. 7 b, 7d, 7e.
Comprise in reactor at least two-layer effuser time, the distribution mode of effuser two-layer arbitrarily can be identical, also can be different, is parallel to each other and/or forms acute angle between two effusers of different layers.
In the present invention, two effusers be parallel to each other can extend out to outside reactor through sidewall of reactor along identical direction, also can extend out to outside reactor through sidewall of reactor along contrary direction, as shown in Figure 7a.
Easily because gravity occurs bending and deformation in life-time service process, the gas collection hole making different positions place in same effuser is no longer on sustained height.In order to avoid the generation of this situation, according to a preferred embodiment of the invention, one end of effuser is fixed in sidewall of reactor.
Although with reference to illustrative embodiments, invention has been described, but be to be understood that, the present invention is not limited in literary composition the embodiment described in detail and illustrate, when not departing from claims limited range, those skilled in the art can make various change to described illustrative embodiments.
Claims (10)
1. for a triphase separator for internal-circulation anaerobic reactor, it is characterized in that comprising: at least one deck gas skirt and the effuser be arranged on below each gas skirt, every layer of gas skirt comprises at least one gas skirt; Wherein,
Gas skirt is inverted V-shape structure, and gas skirt is vertically set in sidewall of reactor along the two ends of its length direction;
Effuser is positioned at inverted V-shape structure and parallel with two inclined-planes of inverted V-shape structure; The closed at both ends of effuser, wherein one end is positioned at reactor, the other end passes perpendicularly through sidewall of reactor and extend out to outside reactor; The downside of effuser is offered one along the length direction of effuser and is arranged in a row pore.
2. triphase separator as claimed in claim 1, wherein, described triphase separator comprises at least two-layer gas skirt, is interspersed between adjacent two layers gas skirt; The below of each gas skirt arranges an effuser.
3. triphase separator as claimed in claim 2, wherein, in reactor, the effuser of sustained height is merged into a return line after stretching out reactor, confluxes in the return line of the gas collected of the effuser of sustained height outside reactor.
4. triphase separator as claimed in claim 2, wherein, in lower floor's effuser, the aperture of gas collection hole is greater than the aperture of gas collection hole in the effuser of upper strata; And/or the spacing in lower floor's effuser between adjacent two gas collection holes is less than the spacing in the effuser of upper strata between adjacent two gas collection holes; And/or the caliber of lower floor's effuser is greater than the caliber of upper strata effuser.
5. the triphase separator as described in as arbitrary in claim 1-4, wherein, every layer comprises at least two gas skirts and effuser; At least one deck effuser distributes in the following manner:
Be parallel to each other between any two effusers;
Or all effusers radially distribute, be not parallel to each other between any two effusers;
Or, be parallel to each other between at least two effusers, in acute angle between at least one effuser and described at least two effusers;
Or, this layer is divided at least two gas collection areas under control, effuser in each gas collection area under control: be parallel to each other between any two effusers, or all effusers radially distribute, be not parallel to each other between any two effusers, or be parallel to each other between at least two effusers, between described at least two effusers at least one effuser and this gas collection area under control in acute angle.
6. triphase separator as claimed in claim 5, wherein, two effusers be parallel to each other extend out to outside reactor along identical or contrary direction through sidewall of reactor.
7. triphase separator as claimed in claim 5, wherein, is parallel to each other and/or forms acute angle between two effusers of different layers.
8. triphase separator as claimed in claim 1, effuser is positioned at the top of the inverted V-shape structure of gas skirt.
9. triphase separator as claimed in claim 1, wherein, one end of described effuser is fixed in sidewall of reactor.
10. triphase separator as claimed in claim 1, wherein, the cross section of described effuser be oval, Polygons or by line segment and camber line form irregularly shaped.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610111966.1A CN105502654A (en) | 2016-02-29 | 2016-02-29 | Three-phase separator for internal circulation anaerobic reactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610111966.1A CN105502654A (en) | 2016-02-29 | 2016-02-29 | Three-phase separator for internal circulation anaerobic reactor |
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| CN201610111966.1A Pending CN105502654A (en) | 2016-02-29 | 2016-02-29 | Three-phase separator for internal circulation anaerobic reactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107162181A (en) * | 2017-05-03 | 2017-09-15 | 北京金泽环境能源技术研究股份有限公司 | A kind of three phase separator for internal-circulation anaerobic reactor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2871520Y (en) * | 2006-01-18 | 2007-02-21 | 王笃福 | Automatically-circulating anaerobic reactor |
| CN202046979U (en) * | 2011-05-31 | 2011-11-23 | 许继联华国际环境工程有限责任公司 | Internal circulation anaerobic reactor with improved three-phase separator |
| CN204824339U (en) * | 2015-06-18 | 2015-12-02 | 北京建研环保设备有限公司 | Gu - liquid - gas three -phase separator |
-
2016
- 2016-02-29 CN CN201610111966.1A patent/CN105502654A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2871520Y (en) * | 2006-01-18 | 2007-02-21 | 王笃福 | Automatically-circulating anaerobic reactor |
| CN202046979U (en) * | 2011-05-31 | 2011-11-23 | 许继联华国际环境工程有限责任公司 | Internal circulation anaerobic reactor with improved three-phase separator |
| CN204824339U (en) * | 2015-06-18 | 2015-12-02 | 北京建研环保设备有限公司 | Gu - liquid - gas three -phase separator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107162181A (en) * | 2017-05-03 | 2017-09-15 | 北京金泽环境能源技术研究股份有限公司 | A kind of three phase separator for internal-circulation anaerobic reactor |
| CN107162181B (en) * | 2017-05-03 | 2018-05-11 | 北京金泽环境能源技术研究股份有限公司 | A kind of three phase separator for internal-circulation anaerobic reactor |
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Application publication date: 20160420 |