CN110566801A - Overpressure-proof methane gas cabinet for preparing methane by pressure swing adsorption method - Google Patents
Overpressure-proof methane gas cabinet for preparing methane by pressure swing adsorption method Download PDFInfo
- Publication number
- CN110566801A CN110566801A CN201910893835.7A CN201910893835A CN110566801A CN 110566801 A CN110566801 A CN 110566801A CN 201910893835 A CN201910893835 A CN 201910893835A CN 110566801 A CN110566801 A CN 110566801A
- Authority
- CN
- China
- Prior art keywords
- methane
- inner bag
- air bag
- methane gas
- type inner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 158
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000009172 bursting Effects 0.000 abstract description 2
- 239000002808 molecular sieve Substances 0.000 description 7
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 7
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/12—Purification; Separation; Use of additives by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17B—GAS-HOLDERS OF VARIABLE CAPACITY
- F17B1/00—Gas-holders of variable capacity
- F17B1/02—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17B—GAS-HOLDERS OF VARIABLE CAPACITY
- F17B1/00—Gas-holders of variable capacity
- F17B1/02—Details
- F17B1/14—Safety devices, e.g. prevention of excess pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17B—GAS-HOLDERS OF VARIABLE CAPACITY
- F17B1/00—Gas-holders of variable capacity
- F17B1/24—Gas-holders of variable capacity of dry type
-
- 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
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0176—Shape variable
- F17C2201/018—Shape variable with bladders
-
- 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
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/03—Orientation
- F17C2201/032—Orientation with substantially vertical main axis
-
- 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
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
-
- 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
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/04—Indicating or measuring of parameters as input values
- F17C2250/0404—Parameters indicated or measured
- F17C2250/043—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
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/02—Improving properties related to fluid or fluid transfer
- F17C2260/021—Avoiding over pressurising
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Water Supply & Treatment (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses an overpressure-proof methane gas holder for preparing methane by a pressure swing adsorption method, which solves the technical problem that the gas holder is easy to burst due to overpressure caused by overlarge make-up gas amount of the methane gas holder in the prior art. The inner bag of the traditional methane gas cabinet is set into a telescopic bellows structure, a circular steel wire ring support fence is used as a framework of the inner bag, and sudden change of methane capacity is absorbed through lifting of the inner bag, so that excessive supplementary methane is prevented, and the inner bag is prevented from bursting; the outer bag of the traditional methane gas cabinet is changed into a steel cylindrical silo, so that the steel cylindrical silo has the function of integrally supporting the methane gas cabinet, the wind resistance, firmness, outdoor environment adaptability and the like of the whole methane gas cabinet are improved, and the safety performance of the methane gas cabinet is improved.
Description
Technical Field
The invention relates to a preparation system of high-purity methane, in particular to a methane supply gas cabinet used in the process of preparing methane by a pressure swing adsorption method.
Background
Purifying and preparing methane from the methane by adopting a pressure swing adsorption method, a water washing method, a membrane separation method and other methods, wherein the pressure swing adsorption method is to analyze and separate the methane by changing the adsorption pressure of a molecular sieve to finally obtain the methane, the methane is introduced into an inlet of a molecular sieve adsorption tower of the pressure swing adsorption method and is analyzed and separated in the molecular sieve adsorption tower, the analysis process requires that the gas inlet flow of the methane is constant, and the pressure of the methane entering the molecular sieve adsorption tower is also constant, so that the methane with high purity can be analyzed and separated; the existing pressure swing adsorption method for preparing methane is characterized in that a methane gas cabinet with fixed capacity is connected to a molecular sieve adsorption tower, methane with certain gas quantity and temperature is stored in the methane gas cabinet, during the analysis production process, the methane gas quantity flowing out of the methane gas cabinet is measured, and methane with the same gas quantity is dynamically supplemented into the methane gas cabinet, so that the pressure of the methane entering the molecular sieve adsorption tower is constant, the gas entering quantity of the methane is constant, and due to the change of the flow and the pressure at a methane outlet of the methane gas cabinet, the methane is fed back to an executing mechanism on a gas inlet of the methane gas cabinet, a certain time delay and hysteresis are caused, the phenomenon of excessive or insufficient adjustment of the gas inflow can often occur, the fluctuation of the flow and the pressure of the methane entering the molecular sieve adsorption tower can be directly caused, and the analysis purity of the methane can be influenced; in addition, after the running time of the control system of the biogas tank is long, due to the accumulation of errors of the control system, particularly after the control device is accidentally broken down, the biogas amount supplemented by the biogas tank is overlarge in a short time, so that the biogas tank is over-pressurized and burst.
Disclosure of Invention
The invention provides an overpressure-proof methane gas holder for preparing methane by a pressure swing adsorption method, which solves the technical problem that the gas holder is easy to burst due to overpressure caused by overlarge make-up gas amount of the methane gas holder in the prior art.
The invention solves the technical problems by the following technical scheme:
The general concept of the invention is: the inner bag of the traditional methane gas cabinet is set into a telescopic bellows structure, a circular steel wire ring support fence is used as a framework of the inner bag, and sudden change of methane capacity is absorbed through lifting of the inner bag, so that excessive supplementary methane is prevented, and the inner bag is prevented from bursting; the outer bag of the traditional methane gas cabinet is changed into a steel cylindrical silo, so that the steel cylindrical silo has the function of integrally supporting the methane gas cabinet, the wind resistance, firmness, outdoor environment adaptability and the like of the whole methane gas cabinet are improved, and the safety performance of the methane gas cabinet is improved.
An overpressure-proof methane gas holder for preparing methane by a pressure swing adsorption method comprises a steel cylindrical silo, wherein a conical silo top cap is arranged at the top end of the steel cylindrical silo, a closed bellows type inner bag is arranged in the steel cylindrical silo, annular air bag support rings are arranged in the closed bellows type inner bag at intervals along the vertical direction, an air bag lifting guide ring is arranged on the outer side wall of the bellows type inner bag at the supporting position of the annular air bag support rings, air bag lifting guide columns are arranged on the ground between the bellows type inner bag and the steel cylindrical silo at equal intervals in an arc manner, the air bag lifting guide rings are sleeved on the air bag lifting guide columns, an air bag top lifting traction rope set is arranged on the top end surface of the closed bellows type inner bag, a top fixed pulley is arranged on the center top tip of the conical silo top cap, and a steering fixed pulley is arranged on the outer side surface of the top end of the steel cylindrical silo, the upper end of the lifting traction rope group at the top of the air bag is connected with one end of a balance traction rope, the other end of the balance traction rope is connected with a balance hanging block after sequentially passing through a top end fixed pulley and a steering fixed pulley, and a biogas input pipeline and a biogas output pipeline are respectively arranged on the air box type inner bag.
An electric control regulating valve is arranged on the methane input pipeline, a methane pressure gauge is arranged on the methane output pipeline, and the electric control regulating valve is electrically connected with the methane pressure gauge.
The invention has simple structure, when excessive marsh gas enters the bellows type inner bag, the bellows type inner bag absorbs the excessive marsh gas to expand through expansion, burst caused by sudden rise of air pressure is avoided, when the air bag is insufficient, the air bag is contracted through the balance hanging block, and the pressure of the marsh gas in the bellows type inner bag is kept within a certain value range.
drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
An overpressure-proof methane gas holder for preparing methane by a pressure swing adsorption method comprises a steel cylindrical silo 1, wherein the top end of the steel cylindrical silo 1 is provided with a conical silo top cap 2, a closed bellows type inner bag 3 is arranged in the steel cylindrical silo 1, annular air bag support rings 6 are arranged in the closed bellows type inner bag 3 at intervals along the vertical direction, the outer side wall of the bellows type inner bag 3 at the support part of the annular air bag support rings 6 is provided with an air bag lifting guide ring 5, air bag lifting guide columns 4 are arranged on the ground between the bellows type inner bag 3 and the steel cylindrical silo 1 at equal intervals in radian, the air bag lifting guide ring 5 is sleeved on the air bag lifting guide columns 4, an air bag top lifting traction rope group 9 is arranged on the top end surface of the closed bellows type inner bag 3, a top fixed pulley 10 is arranged on the center top point of the conical silo top cap 2, the outer side surface of the top end of the steel cylindrical silo 1 is provided with a steering fixed pulley 12, the upper end of a lifting traction rope group 9 at the top of the air bag is connected with one end of a balance traction rope 11, the other end of the balance traction rope 11 is connected with a balance hanging block 13 after passing through a top end fixed pulley 10 and the steering fixed pulley 12 in sequence, and a biogas input pipeline 7 and a biogas output pipeline 8 are respectively arranged on the bellows type inner bag 3.
An electric control regulating valve 15 is arranged on the methane input pipeline 7, a methane pressure gauge 14 is arranged on the methane output pipeline 8, and the electric control regulating valve 15 is electrically connected with the methane pressure gauge 14.
When the methane is introduced into the methane gas cabinet, the bellows type inner bag 3 can be slowly lifted along with the increase of the gas amount in the cabinet, meanwhile, the annular air bag support ring 6 is lifted along the air bag lifting guide post 4, when the bellows type inner bag 3 is lifted, the traction of the air bag top lifting traction rope group 9 and the guide of the air bag lifting guide post 4 are provided, the bellows type inner bag 3 is ensured not to deviate from a lifting track, the methane stored in the bellows type inner bag 3 is constant-pressure methane, the pressure can be adjusted by adjusting the weight of the balance hanging block 13, a pressure transmitter is arranged in the methane output pipeline 8, the pressure of the bellows type inner bag 3 is monitored in real time, and the control system gives an alarm prompt when the pressure is abnormal.
Claims (2)
1. An overpressure-proof methane gas holder for preparing methane by a pressure swing adsorption method comprises a steel cylindrical silo (1), wherein the top end of the steel cylindrical silo (1) is provided with a conical silo top cap (2), and is characterized in that a closed bellows type inner bag (3) is arranged in the steel cylindrical silo (1), annular air bag support rings (6) are arranged in the closed bellows type inner bag (3) at intervals along the vertical direction, an air bag lifting guide ring (5) is arranged on the outer side wall of the bellows type inner bag (3) at the support part of the annular air bag support rings (6), air bag lifting guide columns (4) are arranged on the ground between the bellows type inner bag (3) and the steel cylindrical silo (1) at equal intervals in a radian manner, the air bag lifting guide ring (5) is sleeved on the air bag lifting guide columns (4), and an air bag top lifting traction rope group (9) is arranged on the top end surface of the closed bellows type inner bag (3), a top end fixed pulley (10) is arranged on a center top of a conical silo top cap (2), a steering fixed pulley (12) is arranged on the outer side surface of the top end of a steel cylindrical silo (1), the upper end of an air bag top lifting traction rope set (9) is connected with one end of a balance traction rope (11), the other end of the balance traction rope (11) is connected with a balance hanging block (13) after passing through the top end fixed pulley (10) and the steering fixed pulley (12) in sequence, and a biogas input pipeline (7) and a biogas output pipeline (8) are respectively arranged on a bellows type inner bag (3).
2. The overpressure-preventing methane gas holder for preparing methane by the pressure swing adsorption method according to claim 1, wherein an electrically controlled regulating valve (15) is arranged on the methane input pipeline (7), a methane pressure gauge (14) is arranged on the methane output pipeline (8), and the electrically controlled regulating valve (15) is electrically connected with the methane pressure gauge (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910893835.7A CN110566801A (en) | 2019-09-20 | 2019-09-20 | Overpressure-proof methane gas cabinet for preparing methane by pressure swing adsorption method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910893835.7A CN110566801A (en) | 2019-09-20 | 2019-09-20 | Overpressure-proof methane gas cabinet for preparing methane by pressure swing adsorption method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110566801A true CN110566801A (en) | 2019-12-13 |
Family
ID=68781509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910893835.7A Pending CN110566801A (en) | 2019-09-20 | 2019-09-20 | Overpressure-proof methane gas cabinet for preparing methane by pressure swing adsorption method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110566801A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111006133A (en) * | 2019-12-18 | 2020-04-14 | 上海林海生态技术股份有限公司 | Method for installing gas tank system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2280829Y (en) * | 1997-03-14 | 1998-05-06 | 王兴道 | Special gas-storage device for straw gas generating furnace group |
| JPH11270791A (en) * | 1998-03-19 | 1999-10-05 | Ishikawajima Harima Heavy Ind Co Ltd | Breathing tank |
| CN201293198Y (en) * | 2008-11-12 | 2009-08-19 | 帕克环保技术(上海)有限公司 | Methane voltage-stabilizing cabinet |
| CN201875426U (en) * | 2010-10-29 | 2011-06-22 | 北京安泽世通生态环境科技有限公司 | Constant-pressure telescopic flexible gas holder |
| CN104913183A (en) * | 2015-06-29 | 2015-09-16 | 大连欧科膜技术工程有限公司 | Air bag type gas cabinet |
| CN106322097A (en) * | 2016-08-26 | 2017-01-11 | 上海林海生态技术股份有限公司 | Methane storage cabinet and outwards constant-pressure exhausting method of methane storage cabinet |
| CN108224065A (en) * | 2018-01-23 | 2018-06-29 | 中冶赛迪工程技术股份有限公司 | A kind of rubber film sealing gas chamber with jet air-cushion buffer unit |
| CN208074565U (en) * | 2018-04-11 | 2018-11-09 | 池州森大轻工制品有限公司 | A kind of safe Acetylene Gas Holder |
| CN210567481U (en) * | 2019-09-20 | 2020-05-19 | 山西汾西重工有限责任公司 | Overpressure-proof methane gas cabinet for preparing methane by pressure swing adsorption method |
-
2019
- 2019-09-20 CN CN201910893835.7A patent/CN110566801A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2280829Y (en) * | 1997-03-14 | 1998-05-06 | 王兴道 | Special gas-storage device for straw gas generating furnace group |
| JPH11270791A (en) * | 1998-03-19 | 1999-10-05 | Ishikawajima Harima Heavy Ind Co Ltd | Breathing tank |
| CN201293198Y (en) * | 2008-11-12 | 2009-08-19 | 帕克环保技术(上海)有限公司 | Methane voltage-stabilizing cabinet |
| CN201875426U (en) * | 2010-10-29 | 2011-06-22 | 北京安泽世通生态环境科技有限公司 | Constant-pressure telescopic flexible gas holder |
| CN104913183A (en) * | 2015-06-29 | 2015-09-16 | 大连欧科膜技术工程有限公司 | Air bag type gas cabinet |
| CN106322097A (en) * | 2016-08-26 | 2017-01-11 | 上海林海生态技术股份有限公司 | Methane storage cabinet and outwards constant-pressure exhausting method of methane storage cabinet |
| CN108224065A (en) * | 2018-01-23 | 2018-06-29 | 中冶赛迪工程技术股份有限公司 | A kind of rubber film sealing gas chamber with jet air-cushion buffer unit |
| CN208074565U (en) * | 2018-04-11 | 2018-11-09 | 池州森大轻工制品有限公司 | A kind of safe Acetylene Gas Holder |
| CN210567481U (en) * | 2019-09-20 | 2020-05-19 | 山西汾西重工有限责任公司 | Overpressure-proof methane gas cabinet for preparing methane by pressure swing adsorption method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111006133A (en) * | 2019-12-18 | 2020-04-14 | 上海林海生态技术股份有限公司 | Method for installing gas tank system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191213 |