CN105861281A - Maintenance-free tank body integrated positive/negative-pressure protector - Google Patents
Maintenance-free tank body integrated positive/negative-pressure protector Download PDFInfo
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- CN105861281A CN105861281A CN201610265488.XA CN201610265488A CN105861281A CN 105861281 A CN105861281 A CN 105861281A CN 201610265488 A CN201610265488 A CN 201610265488A CN 105861281 A CN105861281 A CN 105861281A
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- Prior art keywords
- cylinder
- tank body
- positive
- liquid level
- communicating pipe
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Classifications
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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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/10—Arrangements for preventing freezing
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Zoology (AREA)
- Molecular Biology (AREA)
- Genetics & Genomics (AREA)
- General Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Biomedical Technology (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Sustainable Development (AREA)
- General Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a maintenance-free tank body integrated positive/negative-pressure protector which comprises a cylinder which is integrated with the tank body, wherein the upper part of the cylinder is positioned outside the tank body, and the lower part of the cylinder is positioned inside the tank body; the bottom of the cylinder is provided with a bottom plate; the bottom plate is connected with an overflow communicating pipe which communicates with the inside of the tank body; the upper part in the cylinder is provided with a top plate; the top plate is connected with a constant-pressure diode; and the cylinder is filled with a sealing fluid. The overflow communicating pipe directly communicates with the inside of the tank body, the liquid in the humid gas inside the tank body can supplement the sealing fluid, and the excessive outside rain water after entering the sealing fluid can automatically overflow to maintain and protect the stable pressure. The integration is inside the tank body, thereby avoiding the evaporation loss caused by solar radiation and the failure of the sealing fluid due to icing in winter. The liquid level lower limit sensing pipe arranged in the protector is utilized to monitor the liquid level lower limit and prompt the fluid supplementation.
Description
Technical field
The present invention relates to a kind of large-scale storage tank positive and negative pressure protection equipment, particularly relate to anaerobic fermentation in a kind of biogas engineering anti-
Answer the positive/negative pressure protection device of device, specifically integral type non-maintaining tank body integrated form positive/negative pressure protector.
Background technology
In recent years, feces of livestock and poultry anaerobic fermentation produces developing into of biogas technology and effectively solves Pollution from livestock and poultry, exploitation cleaning
The energy provides technical support.Anaerobic fermentation reactor in normal course of operation, by input and output material, outside air temperature change and
With the impact of gas system fluctuation, reactor pressure often fluctuates, for preventing pressure oscillation from causing tank body unstability or spalling and suction
Top, it is necessary to malleation and negative-pressure protection device are set.The malleation and the negative-pressure protection device that use at present have machinery, water seal etc. several,
But being all independent, there is the drawback that investment is high and management is cumbersome, and mechanical type protector there is also corrosion and lost efficacy, the life-span is low
Problem, it is big to there is floor space in water seal protector, and low temperature environment freezes problem.To this end, the integral type of exploitation compact is just
Negative-pressure protection device, reduces investment and management intensity, convenient use, and the disadvantage that solution conventional pressure protection device exists is the most outstanding
For important.
Summary of the invention
It is an object of the invention to as overcoming above-mentioned the deficiencies in the prior art, it is provided that integral type non-maintaining tank body integrated form positive/negative-pressure is protected
Protecting device, positive/negative pressure protector is integrated in one with tank body, has stopped its disabler caused because sealing liquid in winter freezes
The loss brought.
For achieving the above object, the present invention uses following technical proposals:
Integral type non-maintaining tank body integrated form positive/negative pressure protector, including the cylinder become one with tank body, described cylinder
Top is positioned at outside tank body, and the bottom of cylinder is positioned at tank interior；Described cylinder body bottom is provided with base plate, and base plate connects to be had and tank
The overflow communicating pipe of internal portion connection, the top of inner barrel is provided with top board, and described top board is connected with weighing apparatus pressure diode, described
Cylinder is built with sealing liquid.Positive and negative pressure defencive function is integrated in one, and makes positive/negative pressure protector and protected tank body collection
Being integrally forming, positive/negative pressure protector is protected to tank interior, will not because of the sealing liquid in positive/negative pressure protector in the winter time
Freeze and cause losing efficacy.
The pipeline of described overflow communicating pipe is positioned at cylinder, is confining liquid between tube wall outside and the cylinder inboard wall of overflow communicating pipe
Body storage area；Between outer wall and the cylinder inboard wall of overflow communicating pipe, sealing liquid is set, the communicating pipe of overflow simultaneously and tank interior
Connection, meeting automatic overflow unnecessary after extraneous rainwater enters sealing liquid, maintain protection pressure stability.
Described weighing apparatus pressure diode is extended in sealing liquid by top board；Weighing apparatus pressure diode extends in sealing liquid, sealing liquid
Enter inside weighing apparatus pressure diode, possess the positive/negative-pressure defencive function of entirety.
Described weighing apparatus pressure diode and overflow communicating pipe are non-interference, between the axis of weighing apparatus pressure diode and the axis of overflow communicating pipe
Space from more than the maximum in weighing apparatus pressure diode and overflow communicating pipe caliber；Weighing apparatus pressure diode and overflow communicating pipe
Separately lay, it is ensured that the bottom of weighing apparatus pressure diode is placed in sealing liquid.
The peak of described overflow communicating pipe is higher than the minimum point of weighing apparatus pressure diode；Guarantee that the liquid level of sealing liquid can be high
In the bottom of weighing apparatus pressure diode, sealing liquid is made to enter in weighing apparatus pressure diode, it is ensured that the positive/negative-pressure protective effect of device.
Described cylinder top connects atmospheric communicating pipe；Top board region below is positive/negative-pressure functional section, top board area above
For de-liquid respiratory region, positive/negative pressure protector is breathed by atmospheric communicating pipe.
Being fixed with liquid level lower limit perception pipe on described top board, the bottom of liquid level lower limit perception pipe extends in sealing liquid；Pass through
Liquid level lower limit prompting liquid make-up monitored by liquid level lower limit perception pipe, it is achieved the non-maintaining operation of fault-free.
Preferably, the connection of described liquid level lower limit perception pipe top port blows whistle, it is simple to give the liquid level deficiency in protector
Prompting.
Described liquid level lower limit perception pipe top extends to outside cylinder via atmospheric communicating pipe；Easy for installation, and expose lower limit sense
Know that pipe is determined by its sensed in advance liquid level function, when liquid level arrives its lower end position, liquid certainly will be had to manage from it with air-flow
Interior ejection.
Preferably, the length in described liquid level lower limit perception pipe portion under the top plate is less than the length of weighing apparatus pressure diode；Liquid level lower limit sense
Know with the liquid level lower limit of sensed in advance sealing liquid fluid infusion in time, pipe can so can ensure that this device is non-maintaining without reason for the whole year
Barrier runs.
The operation principle of the present invention is:
After using said structure, connecting tube is connected with protected tank body or gas storage constant voltage equipment, and injects also in lower chamber
Hydraulically full, when protected object is in normal pressure, weighing apparatus pressure diode can form protection fluid-tight, i.e. its internal liquid level
Rising, lifting height is relevant to protection object operating pressure, when protected object pressure exceedes setting, and protected object
The water seal that internal gases at high pressure will break through in weighing apparatus pressure diode, is discharged by the atmospheric communicating pipe at protector top so that pressure
Power recovers normal value.And when protected object pressure drop as little as setting, system can pass through atmospheric communicating pipe inspiration air will
Negative-pressure balancing falls, and ensures that protected object is not damaged by negative pressure.The present invention can well regulate the system pressure of protected object
Power, it is ensured that when it runs, pressure is normal, so that its safe operation.
The invention have the benefit that
The overflow communicating pipe of the present invention directly connects with tank interior, and the liquid in the wet gas of tank interior can be to confining liquid
Body supplements, the meeting automatic overflow that extraneous rainwater is unnecessary after entering sealing liquid, maintains protection pressure stability, due to it
It is integrated in tank interior, it is to avoid winter, sealing liquid froze the evaporation loss that the inefficacy caused brings with solar radiation.
The present invention arranges liquid level lower limit perception pipe, monitors liquid level lower limit prompting liquid make-up by liquid level lower limit perception pipe,
The length in the pipe of liquid level lower limit perception simultaneously portion under the top plate is slightly less than the length of weighing apparatus pressure diode, and such liquid level lower limit perception pipe can
With the timely fluid infusion of the liquid level lower limit of sensed in advance sealing liquid.So can ensure that the annual non-maintaining failure-free operation of this device.
In the present invention, the value by adjusting a Yu b regulates negative pressure and positive pressure protection bound, it is to avoid tradition positive and negative pressure protection
The investment that device causes because of independence increases, manages drawback loaded down with trivial details, that floor space is big, and stable, the protection to container has
Effect is reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation of integrated form positive/negative pressure protector of the present invention；
Fig. 2 is A-A profile in Fig. 1；
In figure, 1. overflow communicating pipe, 2. base plate, 3. sealing liquid, 4. interior cylinder, 5. weighing apparatus pressure diode, 6. tank body,
7. top board, 8. outside cylinder, 9. atmospheric communicating pipe, 10. liquid level lower limit perception pipe.
Detailed description of the invention
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
As it is shown in figure 1, integral type non-maintaining tank body integrated form positive/negative pressure protector, by cylinder, base plate 2, top board 7, air
Communicating pipe 9, weighing apparatus pressure diode 5, overflow communicating pipe 1, liquid level lower limit perception pipe 10, sealing liquid 3 are constituted, top board 7 with
Lower region is positive/negative-pressure functional section, and area above is de-liquid respiratory region.
Cylinder becomes one with tank body 6, cylinder top outside tank body 6 for outside cylinder 8, cylinder bottom is at tank body 6
Internal for interior cylinder 4, it is provided with base plate 2 bottom interior cylinder 4, base plate 2 connects to be had and the internal overflow connected of tank body 6
Communicating pipe 1, the top within interior cylinder 4 is provided with top board 7, and top board 7 is connected with weighing apparatus pressure diode 5.Outside cylinder 8 pushes up
Portion connects atmospheric communicating pipe 9；Top board 7 region below is positive/negative-pressure functional section, and top board 7 area above is breathed for de-liquid
District, positive/negative pressure protector is breathed by atmospheric communicating pipe 9.
In the internally positioned cylinder of pipeline 4 of overflow communicating pipe 1, tube wall outside and interior cylinder 4 inwall of overflow communicating pipe 1
Between be sealing liquid 3 storage area；Arranging sealing liquid between outer wall and the cylinder inboard wall of overflow communicating pipe, overflow simultaneously is even
Siphunculus connects with tank interior, meeting automatic overflow unnecessary after extraneous rainwater enters sealing liquid, maintains protection pressure steady
Fixed.
Weighing apparatus pressure diode 5 is extended in sealing liquid 3 by top board 7；Weighing apparatus pressure diode extends in sealing liquid, confining liquid
Body enters inside weighing apparatus pressure diode, possesses the positive/negative-pressure defencive function of entirety.Weighing apparatus pressure diode 5 and overflow communicating pipe 1 are the most not
Interfering, weighing apparatus presses the axis of diode 5 to connect more than weighing apparatus pressure diode 5 and overflow with the spacing distance of the axis of overflow communicating pipe 1
Maximum in both siphunculus 1 caliber；Both weighing apparatus pressure diode 5 and overflow communicating pipe 1 are separately laid, it is ensured that weighing apparatus pressure the two poles of the earth
The bottom of pipe 5 is placed in sealing liquid.The peak of overflow communicating pipe 1 is higher than the minimum point of weighing apparatus pressure diode 5；Guarantee envelope
The liquid level closing liquid can make sealing liquid enter in weighing apparatus pressure diode, it is ensured that device higher than the bottom of weighing apparatus pressure diode
Positive/negative-pressure protective effect.
Being fixed with liquid level lower limit perception pipe 10 on top board 7, the bottom of liquid level lower limit perception pipe 10 extends in sealing liquid 3；
Liquid level lower limit prompting liquid make-up is monitored, it is achieved the non-maintaining operation of fault-free by liquid level lower limit perception pipe.Liquid level lower limit sense
Know that pipe 10 top extends to outside cylinder 8 via atmospheric communicating pipe 9 outside；
The liquid level lower limit perception pipe 10 length c in top board 7 bottom is less than length b of weighing apparatus pressure diode 5, the difference of b Yu c
For a；Liquid level lower limit perception pipe 10 can so can ensure that this with the liquid level lower limit of sensed in advance sealing liquid fluid infusion in time
The annual non-maintaining failure-free operation of device.Upper lower limit value is freely set by the design requirement of protected object.By adjusting a and b
Value regulate negative pressure and positive pressure protection bound, by liquid level lower limit perception pipe 10 monitor liquid level lower limit prompting liquid make-up,
Realize the non-maintaining operation of fault-free.C is slightly less than b, and such liquid level lower limit perception pipe 10 can be with sensed in advance sealing liquid 3
The timely fluid infusion of liquid level lower limit, so can ensure that the annual non-maintaining failure-free operation of this device.
As in figure 2 it is shown, lay in interior cylinder 4 central axis both sides weighing apparatus pressure diode 5 and overflow communicating pipe 1, it is ensured that two
Between person non-interference；Atmospheric communicating pipe 9 is laid in the center of outside cylinder 8, and liquid level lower limit perception pipe 10 is at air even
Siphunculus 9 center passes, and extends in the sealing liquid 3 of interior cylinder 4.
When liquid level reduces to liquid level lower limit perception pipe 10 lower end, due to the existence of malleation, it is now a critical state.As
Really liquid has loss again, will be started small pressure release from liquid level lower limit perception pipe 10 by protection tank body, after venting partial pressure,
Weighing apparatus pressure diode will some fall after rise with the liquid in liquid level perception pipe so that liquid level rising recloses liquid level lower limit sense
Know pipe 10 then along with pressure rise, in like manner liquid level begins to decline again so that the lower end of liquid level lower limit perception pipe 10 is again
Expose liquid level, continue pressure release, again and again, until liquid level no longer closes liquid level perception pipe lower end.When most starting pressure release, meeting
There is liquid to spray from liquid level lower limit perception pipe 10 with gas, form high speed vaporific, the most just may determine that as liquid level not enough,
Can also be pointed out by exporting the connection equipment such as blow whistle at liquid level lower limit perception pipe 10.During liquid level deficiency, can lead to immediately
Crossing liquid level lower limit perception pipe 10 to supplement its liquid level, firm discharge, fixing pipeline time, surplus liquid automatically flows into tank
Body.
Positive and negative pressure defencive function is integrated in one by the present invention, and integrated with integrally with by protection tank body, it passes through overflow communicating pipe 1
With by protection tank body 6 UNICOM, breathed by atmospheric communicating pipe 9.Tradition positive and negative pressure protector is avoided to make because of independence
The investment become increases, manages drawback loaded down with trivial details, that floor space is big, and stable, the protection to container is the most reliable.Due to
It is integrated in tank interior, has thoroughly stopped the loss that its disabler caused brings because sealing liquid 3 in winter freezes.
Overflow communicating pipe 1 directly connects with tank body 6 inside, and the liquid in wet gas within tank body 6 can be to sealing liquid 3
Supplement, the meeting automatic overflow that extraneous rainwater is unnecessary after entering sealing liquid 3, maintain protection pressure stability, due to it
It is integrated in tank interior, it is to avoid the evaporation loss that the inefficacy that freezed in winter causes brings with solar radiation.
Although the detailed description of the invention of the present invention is described by the above-mentioned accompanying drawing that combines, but not to scope
Limiting, one of ordinary skill in the art should be understood that, on the basis of technical scheme, those skilled in the art are not required to
Various amendments that creative work to be paid can be made or deformation are still within protection scope of the present invention.
Claims (10)
1. integral type non-maintaining tank body integrated form positive/negative pressure protector, is characterized in that, including the cylinder become one with tank body,
The top of described cylinder is positioned at outside tank body, and the bottom of cylinder is positioned at tank interior；Described cylinder body bottom is provided with base plate, base plate
Connecting and have the overflow communicating pipe connected with tank interior, the top of inner barrel is provided with top board, described top board and weighing apparatus pressure diode
Connecting, described cylinder is built with sealing liquid.
2. positive/negative pressure protector as claimed in claim 1, is characterized in that, the pipeline of described overflow communicating pipe is positioned at cylinder,
It is sealing liquid storage area between tube wall outside and the cylinder inboard wall of overflow communicating pipe.
3. positive/negative pressure protector as claimed in claim 1, is characterized in that, described weighing apparatus pressure diode is extended to close by top board
In liquid.
4. the positive/negative pressure protector as described in claim 1 or 2 or 3, is characterized in that, described weighing apparatus pressure diode and overflow are even
Siphunculus is non-interference, and the axis of weighing apparatus pressure diode and the spacing distance of the axis of overflow communicating pipe are more than weighing apparatus pressure diode and overflow
Maximum in communicating pipe both caliber.
5. the positive/negative pressure protector as described in claim 1 or 2 or 3, is characterized in that, the peak of described overflow communicating pipe
Minimum point higher than weighing apparatus pressure diode.
6. positive/negative pressure protector as claimed in claim 1, is characterized in that, described cylinder top connects atmospheric communicating pipe.
7. positive/negative pressure protector as claimed in claim 6, is characterized in that, described top board is fixed with liquid level lower limit perception pipe,
The bottom of liquid level lower limit perception pipe extends in sealing liquid.
8. positive/negative pressure protector as claimed in claim 7, is characterized in that, described liquid level lower limit perception pipe top port connects
Blow whistle.
9. positive/negative pressure protector as claimed in claim 7, is characterized in that, described liquid level lower limit perception pipe top is via air
Communicating pipe extends to outside cylinder.
10. positive/negative pressure protector as claimed in claim 7, is characterized in that, described liquid level lower limit perception pipe portion under the top plate
Length less than weighing apparatus pressure diode length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610265488.XA CN105861281B (en) | 2016-04-26 | 2016-04-26 | The non-maintaining tank body integrated form positive/negative pressure protector of integral type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610265488.XA CN105861281B (en) | 2016-04-26 | 2016-04-26 | The non-maintaining tank body integrated form positive/negative pressure protector of integral type |
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| Publication Number | Publication Date |
|---|---|
| CN105861281A true CN105861281A (en) | 2016-08-17 |
| CN105861281B CN105861281B (en) | 2017-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610265488.XA Active CN105861281B (en) | 2016-04-26 | 2016-04-26 | The non-maintaining tank body integrated form positive/negative pressure protector of integral type |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106479867A (en) * | 2016-12-23 | 2017-03-08 | 山东百川同创能源有限公司 | A kind of positive/negative pressure protection device and marsh-gas fermentation tank |
| CN110182481A (en) * | 2019-06-28 | 2019-08-30 | 恒力石化（大连）有限公司 | A kind of water seal safety device of normal micro-pressure closed system |
| CN111734955A (en) * | 2020-07-04 | 2020-10-02 | 南京天人环保设备有限公司 | Methane bidirectional pressure safety protector |
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| US6024120A (en) * | 1998-09-25 | 2000-02-15 | Sherwood Services Ag | Pressure relief valve with moving diaphragm |
| CN201858526U (en) * | 2009-12-02 | 2011-06-08 | 青岛天人环境股份有限公司 | Positive/negative pressure protection device with water condensation function |
| 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 |
| CN203212570U (en) * | 2013-04-09 | 2013-09-25 | 山东明硕新能源科技有限公司 | 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 |
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2016
- 2016-04-26 CN CN201610265488.XA patent/CN105861281B/en active Active
Patent Citations (7)
| 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 |
| CN201858526U (en) * | 2009-12-02 | 2011-06-08 | 青岛天人环境股份有限公司 | Positive/negative pressure protection device with water condensation function |
| 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 |
| CN203212570U (en) * | 2013-04-09 | 2013-09-25 | 山东明硕新能源科技有限公司 | 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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| CN204589165U (en) * | 2015-04-27 | 2015-08-26 | 何若平 | A kind of positive/negative-pressure protection of anaerobic reactor and drawing mechanism |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106479867A (en) * | 2016-12-23 | 2017-03-08 | 山东百川同创能源有限公司 | A kind of positive/negative pressure protection device and marsh-gas fermentation tank |
| CN106479867B (en) * | 2016-12-23 | 2018-12-07 | 山东百川同创能源有限公司 | A kind of positive/negative pressure protection device and marsh-gas fermentation tank |
| CN110182481A (en) * | 2019-06-28 | 2019-08-30 | 恒力石化（大连）有限公司 | A kind of water seal safety device of normal micro-pressure closed system |
| CN111734955A (en) * | 2020-07-04 | 2020-10-02 | 南京天人环保设备有限公司 | Methane bidirectional pressure safety protector |
| CN111734955B (en) * | 2020-07-04 | 2022-01-04 | 南京天人环保设备有限公司 | Methane bidirectional pressure safety protector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105861281B (en) | 2017-12-15 |
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Effective date of registration: 20191202 Address after: 311300 room 103, No. 888, Shenglian Road, Qingshanhu street, Lin'an District, Hangzhou City, Zhejiang Province Patentee after: Zhejiang new Baichuan Environmental Technology Co., Ltd Address before: 250101 North Zone, University of science and Technology Park, Ji'nan hi tech Zone, Shandong Patentee before: Shandong Baichuan Tongchuang Energy Co., Ltd. |
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Effective date of registration: 20210818 Address after: 250000 Room 403, floor 4, building a1-4, Hanyu Jingu, high tech Zone, Jinan, Shandong Province Patentee after: SHANDONG ZHIZHOU ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Address before: Room 103, 888 Shenglian Road, Qingshanhu street, Lin'an District, Hangzhou, Zhejiang 311300 Patentee before: Zhejiang new Baichuan Environmental Technology Co.,Ltd. |
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