CN205209071U - Flash vessel - Google Patents
Flash vessel Download PDFInfo
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- CN205209071U CN205209071U CN201520954530.XU CN201520954530U CN205209071U CN 205209071 U CN205209071 U CN 205209071U CN 201520954530 U CN201520954530 U CN 201520954530U CN 205209071 U CN205209071 U CN 205209071U
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- flash vessel
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Abstract
The utility model relates to a flash vessel, include jar body main part and be located the liquid storage device of jar body main part bottom, be equipped with the feed inlet that lets in compressed gas in the jar body main part, compressed gas is in jar body is separated in the main part, wherein the after -separating gas by with flow out in the gas outlet that jar body main part links to each other, the liquid of after -separating flows into liquid storage device, the diameter of jar body main part is greater than liquid storage device's diameter. Flash vessel is favorable to the whole efficiency that liquefies of improve equipment to the energy consumption realizes practicing thrift.
Description
Technical field
The utility model relates to the technical field of gas recycling, refers in particular to the liquefaction again and the flash vessel reclaimed that are applied in boil-off gas (BOG) in liquefied natural gas (LNG) storage and transportation.
Background technology
Liquefied natural gas (LNG) main component is methane, being recognized is the energy the cleanest on the earth, colourless, tasteless, nontoxic and non-corrosiveness, its volume is about with amount gaseous natural gas volume 1/625, and the weight of liquefied natural gas is only about 45% of consubstantiality ponding.Liquefied natural gas is natural gas via compression, be cooled to its boiling temperature after become liquid, usual LNG storage subzero 161.5 degrees Celsius, in the low-temperature storage tank of about 0.1MPa, with special purpose ship or oil truck transport, again gasify during use.Very little to air pollution after liquefied natural gas burning, and liberated heat is large, so liquefied natural gas is a kind of more advanced energy.
But in LNG ship oceangoing ship, tank car transportation and LNG filling, uninstall process, due to the heat transmission that the huge temperature difference between environment temperature and low temperature LNG produces, the precooling of station system and other reason, the LNG of low temperature constantly can be heated and produce boil-off gas (being called for short BOG).Although the low-temperature (low temperature) vessel storing LNG has heat insulation layer; but still the impact of outer heat cannot be avoided, cause the increase producing BOG, BOG to make the pressure increase of system; once pressure exceedes the operating pressure that storage tank allows, need to start safety guard release BOG decompression.But this part gas diffuses in air, causes waste, be therefore necessary to reclaim this portion gas.
The recovery of existing methane gas utilizes a kind of flash vessel usually, described flash vessel is pot type structure mainly, Compressed Gas inputs in described flash vessel, gas is because volumetric expansion causes temperature to decline rapidly, so the high gas part of gasification point condenses into liquid, thus the gaseous state of BOG and liquid being separated is realized by described flash vessel, the liquid after being wherein separated flows out from tank base, to be then delivered in system or equipment thus to realize recycling.Although existing flash vessel achieves being separated of gas and liquid, gas liquid rate is low, is unfavorable for energy-saving consumption-reducing.
Utility model content
For this reason, technical problem to be solved in the utility model is to overcome the low problem of the gas liquid rate of flash vessel described in prior art thus provides a kind of and can improve gas liquid rate and save the flash vessel of energy consumption.
For solving the problems of the technologies described above, a kind of flash vessel described in the utility model, comprise tank body main body and be positioned at the fluid storage device of described tank body bottom part body, described tank body main body is provided with the charging aperture passing into Compressed Gas, described Compressed Gas is separated in described tank body main body, gas after being wherein separated is flowed out by the gas outlet be connected with described tank body main body, and the liquid after separation flows into described fluid storage device, and the diameter of described tank body main body is greater than the diameter of described fluid storage device.
In an embodiment of the present utility model, described tank body main body comprises the body be connected with described charging aperture, the portion of giving vent to anger being positioned at described body top and is positioned at the connecting portion of described body bottom, the diameter in wherein said portion of giving vent to anger is reduced to top gradually by bottom, and the diameter of described connecting portion is reduced to bottom gradually by top.
In an embodiment of the present utility model, described in the give vent to anger top in portion be connected with described gas outlet, the bottom of described connecting portion is connected with described fluid storage device.
In an embodiment of the present utility model, described body is provided with the fixed support for fixing described flash vessel along outer wall.
In an embodiment of the present utility model, the top of described body is provided with gathering-device along inwall, and the bottom of described gathering-device is collecting board, and the diameter of described gathering-device is reduced to top gradually by bottom.
In an embodiment of the present utility model, described collecting board is provided with the coal-based carbon material adsorbing described methane gas.
In an embodiment of the present utility model, described collecting board is provided with multiple through hole.
In an embodiment of the present utility model, described body is provided with multiple dividing plate, and multiple dividing plate is crisscross arranged successively in the opposed inner walls of described body.
In an embodiment of the present utility model, described dividing plate is provided with the coal-based carbon material adsorbing described methane gas.
In an embodiment of the utility model type, described fluid storage device to be respectively equipped with on liquid level gauge interface and to be positioned on described liquid level gauge liquid level gauge lower interface below interface.
Technique scheme of the present utility model has the following advantages compared to existing technology:
Flash vessel described in the utility model, can ensure that the volume of the methane liquid being stored in described fluid storage device is minimum, farthest liquid is discharged, simultaneously due to liquid discharge after waste liquid in time can not emptying, the volume being now stored in the residual liquid of described fluid storage device is minimum, be conducive to improving Whole Equipment liquefaction efficiency, thus realize saving energy consumption.
Accompanying drawing explanation
In order to make content of the present utility model be more likely to be clearly understood, below according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein
Fig. 1 is the schematic diagram of flash vessel described in the utility model embodiment one;
Fig. 2 is the schematic diagram of flash vessel described in the utility model embodiment two;
Fig. 3 is the schematic diagram of the utility model collecting board;
Fig. 4 is the schematic diagram of flash vessel described in the utility model embodiment three.
Detailed description of the invention
Embodiment one:
As shown in Figure 1, present embodiments provide a kind of flash vessel, comprise tank body main body 10 and be positioned at the fluid storage device 20 bottom described tank body main body 10, described tank body main body 10 is provided with the charging aperture 30 passing into Compressed Gas, described Compressed Gas is separated in described tank body main body 10, gas after being wherein separated is flowed out by the gas outlet 40 be connected with described tank body main body 10, liquid after separation flows into described fluid storage device 20, and the diameter of described tank body main body 10 is greater than the diameter of described fluid storage device 20.
Flash vessel described in the utility model comprises tank body main body 10 and is positioned at the fluid storage device 20 bottom described tank body main body 10, described tank body main body 10 is connected with gas outlet 40 with charging aperture 30 respectively, by described charging aperture 30, described methane Compressed Gas is inputed in described tank body main body 10, gas is because volumetric expansion and cause temperature to decline rapidly, described Compressed Gas is separated into gas and liquid in described tank body main body 10, gas after being wherein separated is flowed out by described gas outlet 40, liquid after separation flows into described fluid storage device 20, the diameter of described tank body main body 10 is greater than the diameter of described fluid storage device 20, thus can ensure that the volume of the methane liquid being stored in described fluid storage device 20 is minimum, farthest liquid is discharged, simultaneously due to liquid discharge after waste liquid in time can not emptying, the volume being now stored in the residual liquid of described fluid storage device 20 is minimum, be conducive to improving Whole Equipment liquefaction efficiency, thus realize saving energy consumption.
Described tank body main body 10 comprises body 11, is positioned at the portion of giving vent to anger 12 on described body 11 top and is positioned at the connecting portion 13 of described body 11 bottom, wherein said body 11 is connected with described charging aperture 30, Compressed Gas enters in described body 11 by described charging aperture 30, and described Compressed Gas is separated into gas and liquid in described body 11; Gas after separation can reclaim by the described portion of giving vent to anger, and described gas is taken away heat thus is conducive to forming liquid, and described connecting portion 13 can by the liquids recovery after separation; Described diameter of giving vent to anger portion 12 is reduced to top gradually by bottom, and be more conducive to collecting the gas after being separated, the diameter of described connecting portion 13 is reduced to bottom gradually by top, is more conducive to collecting the liquid after being separated.
The top in described portion 12 of giving vent to anger is connected with described gas outlet 40, and be conducive to the gas after by separation and discharge, the bottom of described connecting portion 13 is connected with described fluid storage device 20, is conducive to the liquid after by separation and discharges.
Described body 11 is provided with the fixed support 50 for fixing described flash vessel along outer wall.The liquid level gauge lower interface 22 described fluid storage device 20 being respectively equipped with interface 21 on liquid level gauge and being positioned on described liquid level gauge below interface 21.When the liquid of wherein said fluid storage device 20 is positioned at the top of interface 21 on described liquid level gauge, by-pass valve control is opened, and is discharged by described liquid, when liquid is positioned at described liquid level gauge lower interface 22, by-pass valve control closes, and is stored in by residual liquid in described fluid storage device 20.
Embodiment two:
The present embodiment provides a kind of flash vessel, is converted into the conversion ratio of liquid in order to increase gas, and the structure of flash vessel described in embodiment one has done improvement, the following detailed description of:
Please refer to shown in Fig. 2, the top of described body 11 is provided with gathering-device 60 along inwall, the bottom of described gathering-device 60 is collecting board 61, methane gas can be converged by described collecting board 61, increase the time of staying of described gas, the diameter of described gathering-device 60 is reduced to top gradually by bottom, is conducive to improving liquid production rate, thus saves energy consumption.Methane gas is converged in order to utilize described collecting board 61 to the full extent, described collecting board 61 is provided with the special material adsorbing described methane gas, on surface as collecting board 61 as described in this special material is spread upon, when gas is by described collecting board 61, gas better can be gathered together by described special material, be convenient to the methane forming liquid phase, thus improve the liquefaction efficiency of flash vessel, arrive the object of saving energy consumption.
As shown in Figure 3, in order to be better gathered together by gas, as one distortion, described collecting board 61 is provided with multiple through hole 62, forms mesh structure, has airing function, also gas can be converged, thus improves liquid production rate.
Embodiment three:
The present embodiment provides a kind of flash vessel, is converted into the conversion ratio of liquid in order to increase gas, and the structure of flash vessel described in embodiment one has done improvement, the following detailed description of:
Please refer to shown in Fig. 4, described body 11 is provided with multiple dividing plate 70, and multiple dividing plate 70 is crisscross arranged successively in the opposed inner walls of described body 11, gas is in running, due to the stop of described dividing plate 70, the time of staying of described gas can be increased, reduce the speed of gas outlet 40 described in gas flow, thus increase the conversion ratio that gas is converted into liquid, improve liquid production rate.
In order to reduce the speed of gas outlet 40 described in gas flow further, described dividing plate 70 is provided with the special material adsorbing described methane gas, on surface as dividing plate 70 as described in this special material is spread upon, when gas is by described dividing plate 70, gas better can be gathered together by described special material, be convenient to the methane forming liquid phase, thus improve the liquefaction efficiency of flash vessel, arrive the object of saving energy consumption.
In order to gas is better gathered together, as one distortion, described dividing plate 70 also can be provided with several through holes, forms mesh structure, there is airing function, thus gas is converged, improve liquid production rate.
Special material described in the utility model refers to coal-based carbon material.
To sum up, above technical scheme described in the utility model has the following advantages:
1. flash vessel described in the utility model, comprise tank body main body and be positioned at the fluid storage device of described tank body bottom part body, described tank body main body is connected with gas outlet with charging aperture respectively, by described charging aperture, described methane Compressed Gas is inputed in described tank body main body, described Compressed Gas is separated in described tank body main body, gas after being wherein separated is flowed out by described gas outlet, liquid after separation flows into described fluid storage device, the diameter of described tank body main body is greater than the diameter of described fluid storage device, thus can ensure that the volume of the methane liquid being stored in described fluid storage device is minimum, farthest liquid is discharged, simultaneously due to liquid discharge after waste liquid in time can not emptying, the volume being now stored in the residual liquid of described fluid storage device is minimum, be conducive to improving Whole Equipment liquefaction efficiency, thus realize saving energy consumption.
2. flash vessel described in the utility model, the top of described body is provided with gathering-device along inwall, the bottom of described gathering-device is collecting board, methane gas can be converged by described collecting board, increase the time of staying of described gas, the diameter of described gathering-device is reduced to top gradually by bottom, is conducive to improving liquid production rate, thus saves energy consumption.Methane gas is converged in order to utilize described collecting board to the full extent, described collecting board is provided with the special material adsorbing described methane gas, when gas is by described collecting board, gas better can be gathered together by described special material, be convenient to the methane forming liquid phase, thus improve the liquefaction efficiency of flash vessel, arrive the object of saving energy consumption.
3. flash vessel described in the utility model, described body is provided with multiple dividing plate, and multiple dividing plate is crisscross arranged successively in the opposed inner walls of described body, gas is in running, due to the stop of described dividing plate, the time of staying of described gas can be increased, reduce the speed of gas outlet described in gas flow, thus increase the conversion ratio that gas is converted into liquid, improve liquid production rate.
Obviously, above-described embodiment is only for clearly example being described, the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still in the protection domain that the utility model creates.
Claims (10)
1. a flash vessel, comprise tank body main body and be positioned at the fluid storage device of described tank body bottom part body, described tank body main body is provided with the charging aperture passing into Compressed Gas, described Compressed Gas is separated in described tank body main body, gas after being wherein separated is flowed out by the gas outlet be connected with described tank body main body, liquid after separation flows into described fluid storage device, it is characterized in that: the diameter of described tank body main body is greater than the diameter of described fluid storage device.
2. flash vessel according to claim 1, it is characterized in that: described tank body main body comprises the body be connected with described charging aperture, the portion of giving vent to anger being positioned at described body top and is positioned at the connecting portion of described body bottom, the diameter in wherein said portion of giving vent to anger is reduced to top gradually by bottom, and the diameter of described connecting portion is reduced to bottom gradually by top.
3. flash vessel according to claim 2, is characterized in that: described in the give vent to anger top in portion be connected with described gas outlet, the bottom of described connecting portion is connected with described fluid storage device.
4. flash vessel according to claim 2, is characterized in that: described body is provided with the fixed support for fixing described flash vessel along outer wall.
5. flash vessel according to claim 2, is characterized in that: the top of described body is provided with gathering-device along inwall, and the bottom of described gathering-device is collecting board, and the diameter of described gathering-device is reduced to top gradually by bottom.
6. flash vessel according to claim 5, is characterized in that: described collecting board is provided with the coal-based carbon material of adsorbed methane gas.
7. flash vessel according to claim 5, is characterized in that: described collecting board is provided with multiple through hole.
8. flash vessel according to claim 2, is characterized in that: described body is provided with multiple dividing plate, and multiple dividing plate is crisscross arranged successively in the opposed inner walls of described body.
9. flash vessel according to claim 8, is characterized in that: described dividing plate is provided with the coal-based carbon material of adsorbed methane gas.
10. flash vessel according to claim 1, is characterized in that: described fluid storage device to be respectively equipped with on liquid level gauge interface and to be positioned on described liquid level gauge liquid level gauge lower interface below interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520954530.XU CN205209071U (en) | 2015-11-26 | 2015-11-26 | Flash vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520954530.XU CN205209071U (en) | 2015-11-26 | 2015-11-26 | Flash vessel |
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| Publication Number | Publication Date |
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| CN205209071U true CN205209071U (en) | 2016-05-04 |
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| CN201520954530.XU Active CN205209071U (en) | 2015-11-26 | 2015-11-26 | Flash vessel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107200425A (en) * | 2017-06-06 | 2017-09-26 | 重庆博张机电设备有限公司 | A kind of natural gas sewage combustion gas evaporation concentration device and method |
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2015
- 2015-11-26 CN CN201520954530.XU patent/CN205209071U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107200425A (en) * | 2017-06-06 | 2017-09-26 | 重庆博张机电设备有限公司 | A kind of natural gas sewage combustion gas evaporation concentration device and method |
| CN107200425B (en) * | 2017-06-06 | 2023-06-02 | 重庆博张机电设备有限公司 | Natural gas sewage and fuel gas evaporation concentration device and method |
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