CN107218502B - Limit filling device and liquefied natural gas cylinder - Google Patents
Limit filling device and liquefied natural gas cylinder Download PDFInfo
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- CN107218502B CN107218502B CN201610382851.6A CN201610382851A CN107218502B CN 107218502 B CN107218502 B CN 107218502B CN 201610382851 A CN201610382851 A CN 201610382851A CN 107218502 B CN107218502 B CN 107218502B
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- cylinder body
- reserved
- reserved cylinder
- natural gas
- liquefied natural
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- 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
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
-
- 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
- F17C3/00—Vessels not under pressure
- F17C3/02—Vessels not under pressure with provision for thermal insulation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The application discloses fill dress device and liquefied natural gas bottle limit the amount of money, this limit the amount of money fill the dress device including locating the reservation barrel in the liquefied natural gas bottle inner bag, the feed liquor pipe extend in reserve the barrel in and follow the bottom of reserving the barrel is worn out, set up on the feed liquor pipe with reserve the negative pressure suction inlet of the inside intercommunication of barrel, this negative pressure suction inlet is close to reserve the diapire of barrel, reserve the bottom of barrel and seted up a feed liquor through-hole. The filling limiting device adopts the principle of a jet pump, the simple jet pump is additionally arranged on the reserved cylinder, the residual liquid in the reserved cylinder is pumped out during liquid filling, and the reserved cylinder has enough space to meet the liquid backflow in the liner after the gas cylinder is filled, so that the gas phase space in the cylinder in the gas cylinder is ensured.
Description
Technical Field
The invention relates to a vehicle gas cylinder filling technology, which is a special device for ensuring the limited filling of a gas cylinder and preventing the occurrence of gas cylinder safety problems caused by over filling of the gas cylinder. The invention particularly relates to a jet pump type special device for limited filling of a vehicle liquefied natural gas cylinder.
Background
At present, a reserved cylinder is additionally arranged inside the LNG cylinder for vehicles, the reserved cylinder is provided with a hole, and the caliber of the reserved cylinder is 3-5 mm. After the gas cylinder is filled, liquid in the cylinder flows into the reserved cylinder body through the small hole, the liquid level in the gas cylinder liner drops, and the gas phase space in the cylinder is guaranteed.
The automobile-used gas cylinder limit charging device on the existing market adopts a passive fixed mode, and the device can not ensure that a gas phase space filled with gas cylinders reaches design requirements when residual liquid exists in the gas cylinders, so that the inside of the gas cylinders is rapidly boosted, and safety valve discharge is caused.
Disclosure of Invention
The invention aims to provide a limited filling device and a liquefied natural gas cylinder, wherein the limited filling device adopts an active limited filling mode and can meet the limited filling function no matter under any working condition.
In order to achieve the purpose, the invention provides the following technical scheme:
the embodiment of the application discloses liquefied natural gas cylinder limits quantity of and fills dress device, including locating the reservation barrel in the liquefied natural gas cylinder inner bag, the feed liquor pipe extend in reserve the barrel in and follow the bottom of reserving the barrel is worn out, seted up on the feed liquor pipe with reserve the negative pressure suction inlet of the inside intercommunication of barrel, this negative pressure suction inlet is close to reserve the diapire of barrel, reserve the bottom of barrel and seted up a feed liquor through-hole.
Preferably, in the limited filling device for the liquefied natural gas cylinder, the liquid inlet pipe includes a first pipeline, a jet pump and at least one second pipeline, the jet pump is installed at the bottom of the reserved cylinder, the first pipeline extends into the reserved cylinder and is communicated with one end of the jet pump located inside the reserved cylinder, the second pipeline extends into the liner and is communicated with one end of the jet pump located in the liner, and the negative pressure suction port is formed in the jet pump.
Preferably, in the limited filling device for the liquefied natural gas cylinder, the outlet of the second pipeline is higher than the bottom wall of the reserved cylinder.
Preferably, in the limited filling device for the liquefied natural gas cylinder, the liquid inlet pipe includes two second pipes, and one end of each of the two second pipes is communicated with the bottom end of the jet pump through a reducing tee.
Preferably, in the limited filling device for the liquefied natural gas cylinder, the other ends of the two second pipelines respectively extend upwards from two sides of the reserved cylinder.
Preferably, in the limited filling device for the liquefied natural gas cylinder, the reserve cylinder is fixed to the top of the inner container.
Preferably, in the limited filling device for the liquefied natural gas cylinder, the reserved cylinder is a cylindrical cylinder, and the axial direction of the reserved cylinder is parallel to the axial direction of the inner container.
Preferably, in the limited filling device for the liquefied natural gas cylinder, two ends of the reserved cylinder are respectively welded and fixed to the top of the inner container through a support plate.
Preferably, in the limited filling device for the liquefied natural gas cylinder, a spacing space is formed between the reserved cylinder and the top of the inner container.
The application still discloses liquefied natural gas bottle, include inner bag, feed liquor pipe and locate the reservation barrel in the inner bag, the feed liquor pipe extends in reserving the barrel and follows the bottom of reserving the barrel is worn out, seted up on the feed liquor pipe with reserve the negative pressure suction inlet of the inside intercommunication of barrel, this negative pressure suction inlet is close to reserve the diapire of barrel, reserve the bottom of barrel and seted up a feed liquor through-hole.
Compared with the prior art, the invention has the advantages that:
the filling limiting device adopts the principle of a jet pump, the simple jet pump is additionally arranged on the reserved cylinder, the residual liquid in the reserved cylinder is pumped out during liquid filling, and the reserved cylinder has enough space to meet the liquid backflow in the liner after the gas cylinder is filled, so that the gas phase space in the cylinder in the gas cylinder is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a front view of a liquefied natural gas cylinder according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of A in FIG. 1;
fig. 3 is a side view of a liquefied natural gas cylinder according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described in detail below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1 to 3, the liquefied natural gas cylinder includes an inner container 1, a reserved cylinder 2, a liquid inlet pipe 3, and a liquid outlet pipe 4.
Reserve barrel 2 and locate liquefied natural gas cylinder inner bag 1 in, feed liquor pipe 3 extends in reserving barrel 2 and wears out from the bottom of reserving barrel 2, set up on feed liquor pipe 3 with the negative pressure suction port 321 of reserving the inside intercommunication of barrel 2, this negative pressure suction port 321 is close to in the diapire of reserving barrel 2, reserves the bottom of barrel 2 and has seted up a feed liquor through-hole.
Among this technical scheme, the feed liquor pipe is introduced from the inner bag outside to get into its cavity from the top of reserving the barrel, then reentry the inner bag from the bottom of reserving the barrel, the feed liquor pipe is pressed close to and is reserved the barrel diapire and set up the negative pressure suction inlet, and when liquid got into the inner bag from the feed liquor pipe, under the negative pressure effect, the inner bag was inhaled through the negative pressure suction inlet to the remaining liquid of reserving the barrel, realizes the empty of reserving the barrel.
When the liquid level in the inner container exceeds the liquid inlet through hole, liquid enters the reserved barrel from the liquid inlet through hole.
In a preferred embodiment, the liquid inlet pipe 3 includes a first pipe 31, a jet pump 32 and at least one second pipe 33, the jet pump 32 is installed at the bottom of the reserved cylinder 2, the first pipe 31 extends into the reserved cylinder 2 and is communicated with one end of the jet pump 32 located inside the reserved cylinder 2, the second pipe 33 extends into the liner 1 and is communicated with one end of the jet pump 32 located in the liner 1, and the negative pressure suction port 321 is formed on the jet pump 32.
Further, the outlet of the second pipe 33 is higher than the bottom wall of the reserve cylinder 2.
Preferably, the liquid inlet pipe 3 comprises two second pipes 33, and one end of each of the two second pipes 33 is communicated with the bottom end of the jet pump 32 through a reducing tee 34.
Further, the other ends of the two second pipes 33 extend upward from both sides of the reserve cylinder 2, respectively.
In a preferred embodiment, the pre-cylinder 2 is fixed on top of the inner container 1.
Further, the reserved cylinder 2 is a cylindrical cylinder, and the axial direction of the reserved cylinder is parallel to the axial direction of the liner 1. Two ends of the reserved cylinder body 2 are respectively welded and fixed on the top of the inner container 1 through a supporting plate 21. A spacing space 22 is formed between the reserved cylinder body 2 and the top of the inner container 1.
The novel filling limiting device adopts a jet pump technology in the reserved cylinder in the gas cylinder, does not need external energy, utilizes liquid flowing at high speed during filling to pump residual liquid in the reserved cylinder into the liner, ensures that the reserved cylinder can quickly return the liquid in the inner cylinder into the reserved cylinder after the inner cylinder is filled with the liquid, ensures that a designed gas phase space is reached in the inner cylinder, and avoids the opening of a safety valve caused by pressure rise.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
The foregoing is directed to embodiments of the present application and it is noted that numerous modifications and adaptations may be made by those skilled in the art without departing from the principles of the present application and are intended to be within the scope of the present application.
Claims (8)
1. A liquefied natural gas cylinder quantity-limiting filling device is characterized by comprising a reserved cylinder body arranged in an inner container of the liquefied natural gas cylinder, a liquid inlet pipe extends into the reserved cylinder body and penetrates out of the bottom of the reserved cylinder body, a negative pressure suction port communicated with the inside of the reserved cylinder body is formed in the liquid inlet pipe and is close to the bottom wall of the reserved cylinder body, a liquid inlet through hole is formed in the bottom of the reserved cylinder body,
the liquid inlet pipe comprises a first pipeline, a jet pump and at least one second pipeline, the jet pump is installed at the bottom of the reserved cylinder body, the first pipeline extends into the reserved cylinder body and is communicated with one end, located in the reserved cylinder body, of the jet pump, the second pipeline extends into the liner and is communicated with one end, located in the liner, of the jet pump, the negative pressure suction port is formed in the jet pump,
the reserved cylinder body is fixed at the top of the inner container,
the liquid inlet pipe is introduced from the outside of the inner container, enters the cavity from the top of the reserved cylinder body, and then enters the inner container from the bottom of the reserved cylinder body.
2. The limited filling apparatus for a liquefied natural gas cylinder according to claim 1, wherein: the outlet of the second pipeline is higher than the height of the bottom wall of the reserved cylinder.
3. The limited filling apparatus for a liquefied natural gas cylinder according to claim 1, wherein: the liquid inlet pipe comprises two second pipelines, and one ends of the two second pipelines are communicated with the bottom end of the jet pump through a reducing tee.
4. The limited filling device for the liquefied natural gas cylinder according to claim 3, wherein: the other ends of the two second pipelines extend upwards from two sides of the reserved cylinder respectively.
5. The limited filling apparatus for a liquefied natural gas cylinder according to claim 1, wherein: the reserved cylinder body is a cylindrical cylinder body, and the axial direction of the reserved cylinder body is parallel to the axial direction of the inner container.
6. The limited filling apparatus for a liquefied natural gas cylinder according to claim 5, wherein: and two ends of the reserved cylinder body are respectively welded and fixed on the top of the inner container through a supporting plate.
7. The limited filling apparatus for a liquefied natural gas cylinder according to claim 6, wherein: an interval space is formed between the reserved cylinder body and the top of the inner container.
8. A liquefied natural gas bottle is characterized by comprising a liner, a liquid inlet pipe and a reserved cylinder body arranged in the liner, wherein the liquid inlet pipe extends into the reserved cylinder body and penetrates out of the bottom of the reserved cylinder body, a negative pressure suction port communicated with the interior of the reserved cylinder body is formed in the liquid inlet pipe, the negative pressure suction port is close to the bottom wall of the reserved cylinder body, a liquid inlet through hole is formed in the bottom of the reserved cylinder body,
the liquid inlet pipe comprises a first pipeline, a jet pump and at least one second pipeline, the jet pump is installed at the bottom of the reserved cylinder body, the first pipeline extends into the reserved cylinder body and is communicated with one end, located in the reserved cylinder body, of the jet pump, the second pipeline extends into the liner and is communicated with one end, located in the liner, of the jet pump, the negative pressure suction port is formed in the jet pump,
the reserved cylinder body is fixed at the top of the inner container,
the liquid inlet pipe is introduced from the outside of the inner container, enters the cavity from the top of the reserved cylinder body, and then enters the inner container from the bottom of the reserved cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610382851.6A CN107218502B (en) | 2016-06-01 | 2016-06-01 | Limit filling device and liquefied natural gas cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610382851.6A CN107218502B (en) | 2016-06-01 | 2016-06-01 | Limit filling device and liquefied natural gas cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107218502A CN107218502A (en) | 2017-09-29 |
| CN107218502B true CN107218502B (en) | 2023-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610382851.6A Active CN107218502B (en) | 2016-06-01 | 2016-06-01 | Limit filling device and liquefied natural gas cylinder |
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| CN (1) | CN107218502B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606477A (en) * | 2017-11-09 | 2018-01-19 | 田锋 | The horizontal insulated gas cylinder of anti-overfilling |
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|---|---|---|---|---|
| CN1065920A (en) * | 1991-04-16 | 1992-11-04 | 青岛市煤气公司 | Residual liquid emptying device for liquefied gas steel cylinder |
| CN2262159Y (en) * | 1996-02-05 | 1997-09-10 | 高勇 | Raffinate utilizing device for liquefied gas |
| KR101113176B1 (en) * | 2010-10-02 | 2012-02-16 | 다임폴라특장주식회사 | Liquid nature gas tank for vehicle |
| CN202807562U (en) * | 2012-07-05 | 2013-03-20 | 青岛瑞丰气体有限公司 | Excessive filling prevention vacuum container |
| CN204005198U (en) * | 2014-07-21 | 2014-12-10 | 十堰厚发汽车零部件有限公司 | The anti-overfilling control gear of a kind of LNG mounted gas cylinder |
| CN104728594A (en) * | 2013-12-24 | 2015-06-24 | 陕西汽车集团有限责任公司 | Automotive liquefied natural gas cylinder |
| CN204554356U (en) * | 2015-04-02 | 2015-08-12 | 日照兴业汽车配件有限公司 | The anti-overfilling control gear of a kind of LNG horizontal gas bottle |
| CN205664103U (en) * | 2016-06-01 | 2016-10-26 | 张家港富瑞特种装备股份有限公司 | Limit quantity of and fill dress device and liquefied natural gas bottle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006025656B4 (en) * | 2006-06-01 | 2017-09-21 | Bayerische Motoren Werke Aktiengesellschaft | Device for fuel storage and transport of cryogenic fuel |
-
2016
- 2016-06-01 CN CN201610382851.6A patent/CN107218502B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1065920A (en) * | 1991-04-16 | 1992-11-04 | 青岛市煤气公司 | Residual liquid emptying device for liquefied gas steel cylinder |
| CN2262159Y (en) * | 1996-02-05 | 1997-09-10 | 高勇 | Raffinate utilizing device for liquefied gas |
| KR101113176B1 (en) * | 2010-10-02 | 2012-02-16 | 다임폴라특장주식회사 | Liquid nature gas tank for vehicle |
| CN202807562U (en) * | 2012-07-05 | 2013-03-20 | 青岛瑞丰气体有限公司 | Excessive filling prevention vacuum container |
| CN104728594A (en) * | 2013-12-24 | 2015-06-24 | 陕西汽车集团有限责任公司 | Automotive liquefied natural gas cylinder |
| CN204005198U (en) * | 2014-07-21 | 2014-12-10 | 十堰厚发汽车零部件有限公司 | The anti-overfilling control gear of a kind of LNG mounted gas cylinder |
| CN204554356U (en) * | 2015-04-02 | 2015-08-12 | 日照兴业汽车配件有限公司 | The anti-overfilling control gear of a kind of LNG horizontal gas bottle |
| CN205664103U (en) * | 2016-06-01 | 2016-10-26 | 张家港富瑞特种装备股份有限公司 | Limit quantity of and fill dress device and liquefied natural gas bottle |
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| CN107218502A (en) | 2017-09-29 |
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