CN106479867A - A kind of positive/negative pressure protection device and marsh-gas fermentation tank - Google Patents
A kind of positive/negative pressure protection device and marsh-gas fermentation tank Download PDFInfo
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- CN106479867A CN106479867A CN201611213403.XA CN201611213403A CN106479867A CN 106479867 A CN106479867 A CN 106479867A CN 201611213403 A CN201611213403 A CN 201611213403A CN 106479867 A CN106479867 A CN 106479867A
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- protection pipe
- pipe
- protection
- cistern
- negative pressure
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/40—Means for regulation, monitoring, measurement or control, e.g. flow regulation of pressure
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Abstract
The invention discloses a kind of positive/negative pressure protection device, below the fermentation liquid level in tank body is stretched in the bottom of the first protection pipe；Second protection pipe top connects the first protection pipe, below the water surface in cistern is stretched in bottom.Cistern is fixed in tank body, keeps its relative position to fix, more than fermentation liquid level.Atmospheric communicating pipe is connected with the first protection pipe and the second protection pipe respectively, and stretches out in tank body and be in communication with the outside.When the negative pressure value of tank interior exceedes preset value, the external gas of tank body enters tank interior by atmospheric communicating pipe, it is to avoid internal pressure kept declines, and make-up gas are to maintain pressure value in certain scope.When the malleation value of tank interior exceedes preset value; water in cistern can enter in the first protection pipe through the second protection pipe; enter in tank body through the first protection pipe; minimizing with the cistern water yield; second protection pipe meeting and ft connection; the air of tank interior is discharged, the air pressure within maintenance is within the scope of rational.
Description
Technical field
The present invention relates to biogas system business technical field, further relate to a kind of positive/negative pressure protection device and biogas fermentation
Tank.
Background technology
In recent years, the technology of fowl poultry kind manure fermentation generation biogas efficiently solves Pollution from livestock and poultry, also carries simultaneously
Supply a kind of new clean energy resource.The main component of biogas is methane, by various organic substances, in the condition of isolation air
Under, and keep suitable temperature, pH value, a kind of combustible gas producing through the Fermentation of microorganism.Biogas belongs to two
The secondary energy, is a kind of regenerative resource.
Anaerobic fermentation reactor is during normal operation by charging discharging, outside air temperature change and with gas system ripple
Dynamic impact, the pressure in reactor often fluctuates, for preventing pressure oscillation from causing tank body unstability, spalling or ceiling, must
Setting must can eliminate the device of positive/negative-pressure impact it is ensured that tank for sewage gas trouble free service.
The positive/negative pressure protection device adopting at present is usually mechanical type or hydrolock, mutually only with methane-generating pit in structure
Vertical, the high management of investment is loaded down with trivial details.Also there is corrosion and lost efficacy in mechanical protector, life-span low problem, and water seal protector takes up an area face
Long-pending big, low temperature environment easy freezing, not simply failing to works on plays a protective role it is also possible to spalling body.
Therefore, for a person skilled in the art, how to design positive/negative-pressure in a kind of scalable tank for sewage gas, and can
Avoid conventional protection devices to there is the biogas fermentation device of disadvantage, be the current technical issues that need to address.
Content of the invention
The present invention provides a kind of positive/negative pressure protection device, can keep the air pressure balance within marsh-gas fermentation tank, to fermentation
Tank plays a protective role.Concrete scheme is as follows：
A kind of positive/negative pressure protection device, including：
First protection pipe, bottom can extend into below the fermentation liquid level in tank body；
Second protection pipe, bottom can extend into the cistern being fixedly installed in described tank body, described first guarantor of top connection
Pillar, described cistern is located at more than fermentation liquid level；
Atmospheric communicating pipe, is connected with described first protection pipe and described second protection pipe respectively, and stretches out in described tank body
It is in communication with the outside.
Alternatively, described first protection pipe, described second protection pipe and described atmospheric communicating pipe are all in being vertically arranged, described
Atmospheric communicating pipe is fixed on the top of described tank body.
Alternatively, the linkage section between described first protection pipe and described second protection pipe is in and is horizontally disposed with.
Alternatively, described second protection pipe is arranged between described first protection pipe and described atmospheric communicating pipe.
Alternatively, described first protection pipe and described atmospheric communicating pipe are a broken pipe seamlessly transitting, including water
Flat section；Described second protection pipe is connected on horizontal segment.
Alternatively, described first protection pipe, described second protection pipe and described cistern interfix.
Alternatively, described first protection pipe runs through the bottom of described cistern, and the bottom of described cistern keeps sealing
Fixing；Described second protection pipe is fixed on the top of described cistern.
Alternatively, described first protection pipe, described second protection pipe and described atmospheric communicating pipe are steel pipe.
Additionally, the present invention also provides a kind of marsh-gas fermentation tank, including the positive/negative pressure protection device described in any of the above-described.
The invention provides a kind of positive/negative pressure protection device, including the first protection pipe, the second protection pipe, atmospheric communicating pipe and
The structures such as cistern.The bottom of the wherein first protection pipe can extend into below the fermentation liquid level in tank body, and the first protection pipe is downward
The distance stretching into determines according to the preset value of negative pressure；Second protection pipe top connects the first protection pipe, bottom can extend into water-retention
Below the water surface in pond, the length of the second protection pipe determines according to the preset value of malleation.Cistern is fixed in tank body, keeps it
Relative position is fixed, more than fermentation liquid level.Atmospheric communicating pipe is connected with the first protection pipe and the second protection pipe respectively, and stretches
It is in communication with the outside for tank body.
When the negative pressure value of tank interior exceedes negative pressure preset value, the external gas of tank body enters tank body by atmospheric communicating pipe
Internal, it is to avoid internal pressure kept declines, and make-up gas are to maintain pressure value in certain scope.When tank interior just
When pressure value exceedes malleation preset value, the water in cistern can enter in the first protection pipe through the second protection pipe, through the first protection
Pipe enters in tank body, with the minimizing of the cistern water yield, final second protection pipe meeting and ft connection, therefore by tank interior
Air discharge, maintain internal air pressure within the scope of reasonably.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, acceptable
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is that the positive/negative pressure protection device in the present invention is arranged on the structural representation in tank body.
Including：
First protection pipe 1, the second protection pipe 2, atmospheric communicating pipe 3, cistern 4, tank body 5.
Specific embodiment
The core of the present invention is to provide a kind of positive/negative pressure protection device, and the air pressure within marsh-gas fermentation tank can be kept to put down
Weighing apparatus, plays a protective role to fermentation tank.
In order that those skilled in the art more fully understands technical scheme, below in conjunction with accompanying drawing and specifically
Embodiment, explanation is described in detail to the fermentation tank and positive/negative pressure protection device of the application.
As shown in figure 1, being arranged on the structural representation in tank body for the positive/negative pressure protection device in the present invention.This device bag
Include：The structures such as the first protection pipe 1, the second protection pipe 2, atmospheric communicating pipe 3 and cistern 4, the bottom energy of the wherein first protection pipe 1
Enough stretch into below the fermentation liquid level in tank body 5, the inside of the first protection pipe 1 and tank body pass through liquid level holding sealing of fermenting.Second
The bottom of protection pipe 2 can extend into below the liquid level in cistern 4, and cistern 4 is fixedly installed in tank body 5, by cistern 4
In the inside of water and tank body 5 keep opposing seal.The top of the second protection pipe 2 is communicated in the first protection pipe 1, cistern 4
More than fermentation liquid level.
The bottom of atmospheric communicating pipe 3 is connected with the top of the first protection pipe 1 and the second protection pipe 2 respectively, the first protection pipe 1
It is interconnected with the top of the second protection pipe 2 and connect with atmospheric communicating pipe 3；The top of atmospheric communicating pipe 3 stretch out in tank body 5 with
Extraneous connection.
First protection pipe 1 extend into the length of below fermentation liquid level according to negative pressure default settings, the stretching of the second protection pipe 2
Enter length to below cistern 4 liquid level according to malleation default settings, malleation preset value and negative pressure preset value are 5 energy of tank body
The positive and negative pressure of maximum bearing.
When being negative pressure state in tank body 5, the pressure within tank body 5 is less than outside pressure, and air pressure persistently reduces the first guarantor
Liquid level in pillar 1 and the second protection pipe 2 constantly declines, outside air through atmospheric communicating pipe 3, then through the first protection pipe
1 and the second protection pipe 2 enter tank body 5 in, improve tank body 5 in pressure values, it is to avoid in tank body 5, pressure is too low, and pressure is high all the time
In negative pressure preset value.
When being barotropic state in tank body 5, the pressure within tank body 5 is higher than outside pressure, in the work of tank body 5 air pressure inside
With under, fermented liquid can be expressed in the first protection pipe 1, the liquid in cistern 4 is expressed to the second protection pipe 2 simultaneously
In.Second protection pipe 2 and the first protection pipe 1 are in the same space, the second protection pipe 2 and first under same pressure action
It is highly consistent that liquid in protection pipe 1 rises, but the second protection pipe 2 be shorter in length than the first protection pipe 1, therefore inevitable first
Liquid in protection pipe 1 first outreaches, and then the water in the second protection pipe 2 enters the first protection pipe 1 under gravity.Store
The water yield in pond 4 is seldom, negligible for overall tank body 5, and the water in whole cistern 4 is all discharged to tank body
Also the height that fermentation liquid level will not be made in 5 occurs substantially to change, and internal gas volume change impact is ignored, also just not
The atmospheric pressure value of inside can be changed.When internal pressure persistently raises, the water in cistern 4 constantly can be transferred in tank body 5, work as storage
The bottom that the second protection pipe 2 can be made when the water surface in pond 4 is reduced to sufficiently low is exposed, the sealing of solution eliminating water, makes tank interior
Connect with outside air, internal gas can be discharged to the outside through the second protection pipe 2 and atmospheric communicating pipe 3, keep inside tank body 5
Air pressure be consistently lower than malleation preset value.
After a positive pressure ventilation protection, only need to inject a certain amount of water by atmospheric communicating pipe 3 in cistern 4 is
Normal work can be recovered.Due to going out to discharge heat inside tank body 5 during fermentation, temperature in the winter time is also not less than zero
Degree, is typically maintained in be suitable to ferment 15 DEG C about, causes to lose efficacy thus without icing, throughout the year can normal work
Make.By liquid level and the cistern 4 holding hermetic seal of fermenting, internal maintains under high humidity environment all the time, and the moment carries out steam
Condensation process, will not be because of the too high water loss making in cistern 4 of summer temperature.Condensed water constantly to cistern 4 moisturizing,
Unnecessary water flows outwardly in the fermentation liquid of lower section automatically, and positive/negative-pressure protection remains at steady state, can exempt from for a long time
In maintenance.
The present invention passes through cooperating between the first protection pipe 1, the second protection pipe 2, atmospheric communicating pipe 3 and cistern 4,
The air pressure within whole tank body 5 is made to maintain between the highest that can bear and barometric minimum, without departing from preset value, to fermentation
Tank serves the effect of being effectively protected.
Specifically, the application here provides a kind of specific structure, the first protection pipe 1, the second protection pipe 2 and atmosphere
All in being vertically arranged, atmospheric communicating pipe 3 is fixed on the top of tank body 5 to pipe 3.Company between first protection pipe 1 and the second protection pipe 2
Connecing section is in be horizontally disposed with, and makes the water in the second protection pipe 2 can successfully flow to the first protection pipe 1, certainly, also can connect both
The part connecing is set to the structure tilting to the first protection pipe 1.
As shown in figure 1, the second protection pipe 2 is arranged between the first protection pipe 1 and atmospheric communicating pipe 3, it is of course also possible to will
Atmospheric communicating pipe 3 is arranged on centre, and the second protection pipe 2 is arranged on the first protection pipe 1 and is separately positioned on the two of atmospheric communicating pipe 3
Side, as long as keep the structure being interconnected all to be possible.
More specifically, the first protection pipe 1 and atmospheric communicating pipe 3 are a broken pipe seamlessly transitting, including horizontal segment.
First protection pipe 1 is independent straight tube with atmospheric communicating pipe 3, and both are in be vertically arranged, and the top of the first protection pipe 1 is by curved
Head is fixedly connected with horizontal segment, keeps seamlessly transitting, the bottom of atmospheric communicating pipe 3 is fixedly connected with horizontal segment by elbow, protects
Hold and seamlessly transit, make the first protection pipe 1 and atmospheric communicating pipe 3 form the bending tube of an entirety by elbow structure.Second guarantor
The top of pillar 2 is connected on horizontal segment, arranges perforate in the bottom of horizontal segment, directly enters the second protection pipe 2 with horizontal segment
Row is fixed.
In order that the globality of device is higher, convenient install, the present invention is by the first protection pipe 1, the second protection pipe 2 and water-retention
Pond 4 interfixes, and three forms an entirety, and the company by atmospheric communicating pipe 3 and tank body 5 top together with atmospheric communicating pipe 3
Meet place to realize fixing.
Preferably, the first protection pipe 1 can be run through the bottom of cistern 4, through hole is set in the bottom of cistern 4, by the
One protection pipe 1 is passed down through and keeps sealing to fix.Second protection pipe 2 is fixed on the top of cistern 4, in top horizontal setting
Connecting plate, is fixed on the side wall of cistern 4.
In any of the above-described technical scheme and its on the basis of being mutually combined, the first protection pipe 1, the second protection pipe 2 and air
Communicating pipe 3 is steel pipe, and the connection between all parts is all using being welded and fixed.
Additionally, present invention also offers a kind of marsh-gas fermentation tank, including above-mentioned positive/negative pressure protection device, achievable identical
Technique effect.The other parts of this fermentation tank refer to prior art, and the present invention will not be described here.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple modifications to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle, can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, this
Bright be not intended to be limited to the embodiments shown herein, and be to fit to and principles disclosed herein and features of novelty phase
Consistent scope the widest.
Claims (9)
1. a kind of positive/negative pressure protection device is it is characterised in that include：
First protection pipe (1), bottom can extend into below the fermentation liquid level in tank body (5)；
Second protection pipe (2), bottom can extend into the cistern (4) being fixedly installed in described tank body (5), top connection described the
One protection pipe (1), described cistern (4) is located at more than fermentation liquid level；
Atmospheric communicating pipe (3), is connected with described first protection pipe (1) and described second protection pipe (2) respectively, and stretches out in described
Tank body (5) is in communication with the outside.
2. positive/negative pressure protection device according to claim 1 it is characterised in that described first protection pipe (1), described second
, all in being vertically arranged, described atmospheric communicating pipe (3) is fixed on described tank body (5) for protection pipe (2) and described atmospheric communicating pipe (3)
Top.
3. positive/negative pressure protection device according to claim 2 is it is characterised in that described first protection pipe (1) and described the
Linkage section between two protection pipes (2) is in be horizontally disposed with.
4. positive/negative pressure protection device according to claim 3 is it is characterised in that described second protection pipe (2) is arranged on institute
State between the first protection pipe (1) and described atmospheric communicating pipe (3).
5. positive/negative pressure protection device according to claim 4 is it is characterised in that described first protection pipe (1) is big with described
Gas communicating pipe (3) is a broken pipe seamlessly transitting, including horizontal segment；Described second protection pipe (2) is connected to horizontal segment
On.
6. positive/negative pressure protection device according to claim 1 it is characterised in that described first protection pipe (1), described second
Protection pipe (2) and described cistern (4) interfix.
7. positive/negative pressure protection device according to claim 6 is it is characterised in that described first protection pipe (1) runs through described
The bottom of cistern (4), and the bottom of described cistern (4) keeps sealing to fix；Described second protection pipe (2) is fixed on described
The top of cistern (4).
8. the positive/negative pressure protection device according to any one of claim 1 to 7 is it is characterised in that described first protection pipe
(1), described second protection pipe (2) and described atmospheric communicating pipe (3) are steel pipe.
9. a kind of marsh-gas fermentation tank is it is characterised in that include the positive/negative pressure protection device described in any one of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611213403.XA CN106479867B (en) | 2016-12-23 | 2016-12-23 | A kind of positive/negative pressure protection device and marsh-gas fermentation tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611213403.XA CN106479867B (en) | 2016-12-23 | 2016-12-23 | A kind of positive/negative pressure protection device and marsh-gas fermentation tank |
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| Publication Number | Publication Date |
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| CN106479867A true CN106479867A (en) | 2017-03-08 |
| CN106479867B CN106479867B (en) | 2018-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611213403.XA Active CN106479867B (en) | 2016-12-23 | 2016-12-23 | A kind of positive/negative pressure protection device and marsh-gas fermentation tank |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109266543A (en) * | 2018-11-20 | 2019-01-25 | 黄冬艳 | A kind of methane production device of automatic adjustment |
| CN112273061A (en) * | 2020-10-29 | 2021-01-29 | 贵州金农富平生态农牧科技有限公司 | Silage processingequipment of steady voltage control |
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| US6024120A (en) * | 1998-09-25 | 2000-02-15 | Sherwood Services Ag | Pressure relief valve with moving diaphragm |
| CN102399682A (en) * | 2010-09-10 | 2012-04-04 | 辽宁北方环境保护有限公司 | Integral positive/negative pressure protector |
| CN203582852U (en) * | 2013-12-10 | 2014-05-07 | 巫溪县宏柳沼气设备中心 | Positive-negative pressure device of methane tank |
| CN204358429U (en) * | 2014-11-28 | 2015-05-27 | 中国科学院青岛生物能源与过程研究所 | A kind of positive/negative pressure protection device |
| CN204589165U (en) * | 2015-04-27 | 2015-08-26 | 何若平 | A kind of positive/negative-pressure protection of anaerobic reactor and drawing mechanism |
| CN105861281A (en) * | 2016-04-26 | 2016-08-17 | 山东百川同创能源有限公司 | Maintenance-free tank body integrated positive/negative-pressure protector |
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2016
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6024120A (en) * | 1998-09-25 | 2000-02-15 | Sherwood Services Ag | Pressure relief valve with moving diaphragm |
| CN102399682A (en) * | 2010-09-10 | 2012-04-04 | 辽宁北方环境保护有限公司 | Integral positive/negative pressure protector |
| CN203582852U (en) * | 2013-12-10 | 2014-05-07 | 巫溪县宏柳沼气设备中心 | Positive-negative pressure device of methane tank |
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|---|---|---|---|---|
| CN109266543A (en) * | 2018-11-20 | 2019-01-25 | 黄冬艳 | A kind of methane production device of automatic adjustment |
| CN112273061A (en) * | 2020-10-29 | 2021-01-29 | 贵州金农富平生态农牧科技有限公司 | Silage processingequipment of steady voltage control |
| CN112273061B (en) * | 2020-10-29 | 2021-11-23 | 贵州金农富平生态农牧科技有限公司 | Silage processingequipment of steady voltage control |
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| Publication number | Publication date |
|---|---|
| CN106479867B (en) | 2018-12-07 |
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