CN203202619U - Stirring device of LNG storage tank - Google Patents
Stirring device of LNG storage tank Download PDFInfo
- Publication number
- CN203202619U CN203202619U CN 201320230531 CN201320230531U CN203202619U CN 203202619 U CN203202619 U CN 203202619U CN 201320230531 CN201320230531 CN 201320230531 CN 201320230531 U CN201320230531 U CN 201320230531U CN 203202619 U CN203202619 U CN 203202619U
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- China
- Prior art keywords
- storage tank
- lng storage
- motor
- stirring
- impeller
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a stirring device of an LNG storage tank. The stirring device of the LNG storage tank comprises the LNG storage tank, a stirring system and a driving system. A pressure sensor is arranged on the top of the LNG storage tank, and a density sensing system is arranged in the middle of the LNG storage tank. The stirring system comprises a driving steel rod, an impeller and a base, wherein the driving steel rod penetrates through the center of the impeller, the base is fixed on the inner wall of the LNG storage tank, and the two ends of the driving steel rod are connected to the base in a rotation mode. The driving system comprises a motor, an electromagnet and a motor base. The driving system is fixedly connected to the exterior of the LNG storage tank, the electromagnet is fixedly connected with a rotating shaft of the motor, and the driving system is in signal connection with the pressure sensor and a density sensor. According to the stirring device of the LNG storage tank, the pressure inside the LNG storage tank can be fast reduced through the method of magnetic stirring, the temperature inside the LNG storage tank is even, and the occurrence of tumbling caused by uneven density inside the LNG storage tank is effectively prevented. The stirring device of the LNG storage tank is simple in structure and high in working efficiency, and energy is saved.
Description
Technical field
The utility model relates to LNG storage tank technical field, especially LNG storage tank stirring apparatus.
Background technique
Along with extensive use and the develop rapidly of domestic LNG, the technology of LNG gas station and application are also at high speed development.In LNG transportation process or storage process, at any time the passing of time, stratification can appear in the LNG in the LNG storage tank, causes LNG to form a gradient density, and near-bottom temperature is low, upper strata temperature height, the gasification of LNG is accelerated, caused the pressure in the LNG storage tank to rise, adopt the interior BOG gas of blowdown vessel to come the regulating tank internal pressure usually, perhaps by spraying to reduce a jar internal pressure, the former can cause the pollution of environment and the waste of LNG resource like this; The latter's inefficiency also can cause the bigger waste of aspects such as electric energy and manpower simultaneously.
The model utility content
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, a kind of LNG storage tank stirring apparatus is provided.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of LNG storage tank stirring apparatus, comprise the LNG storage tank, stirring system and drive system, described LNG tank top is provided with pressure transducer, described LNG storage tank middle part is provided with the density sensing system, described stirring system comprises the driving steel pole, impeller and pedestal, described driving steel pole is arranged in the impeller center, and fixedly connected with impeller, described pedestal is fixed on the LNG reservoir walls, described driving steel pole two ends are rotationally connected with on the pedestal, described drive system comprises motor, electromagnetic block and motor cabinet, described drive system is fixedly connected on LNG storage tank outside by motor cabinet, corresponding with pedestal, described motor is fixedly connected on the motor cabinet, described electromagnetic block is fixedlyed connected with machine shaft, and described drive system is connected with pressure sensor signal, and described drive system is connected with the density sensor signal.
Particularly, described LNG storage tank is provided with solar electric power supply system outward.
Particularly, described solar electric power supply system is connected with the drive motor circuit.
Particularly, described some magnetic patch central shaft overlaps with driving steel pole central shaft.
The beneficial effects of the utility model are: a kind of LNG storage tank stirring apparatus that the utility model provides can reduce the pressure of LNG storage tank fast by the method for magnetic agitation, make the uniformity of temperature profile in the LNG storage tank, effectively prevented because of in the LNG storage tank because of density unevenness cause the rolling, install simple, energy-conservation, high working efficiency.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is LNG storage tank stirring apparatus schematic representation of the present utility model;
Fig. 2 is the partial enlarged drawing of " A " position among Fig. 1;
Fig. 3 is the schematic perspective view of LNG storage tank stirring apparatus impeller of the present utility model.
Among the figure: the 1.LNG storage tank, 2. stirring system, 3. drive system, 11. pressure transducers, 12. density sensing systems, 13. solar electric power supply systems, 21. drive steel poles, 22. impellers, 23. pedestals, 31. motors, 32. electromagnetic blocks, 33. motor cabinets.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic representation of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
As shown in Figure 1 to Figure 3, a kind of LNG storage tank stirring apparatus, comprise LNG storage tank 1, stirring system 2 and drive system 3, LNG storage tank 1 top is provided with pressure transducer 11, LNG storage tank 1 middle part is provided with density sensing system 12, stirring system 2 comprises driving steel pole 21, impeller 22 and pedestal 23, drive steel pole 21 and be arranged in impeller 22 centers, and fixedly connected with impeller 22, pedestal 23 is fixed on LNG storage tank 1 inwall, driving steel pole 21 two ends is rotationally connected with on the pedestal 23, drive system 3 comprises motor 31, electromagnetic block 32 and motor cabinet 33, drive system 3 is fixedly connected on LNG storage tank 1 outside by motor cabinet 33, and is corresponding with pedestal 23, and motor 31 is fixedly connected on the motor cabinet 33, electromagnetic block 32 is fixedlyed connected with motor 31 rotating shafts, electromagnetic block 32 central shafts and driving steel pole 21 central shafts overlap, and drive system 3 is connected with pressure transducer 11 signals, and drive system 3 is connected with density sensor 12 signals.Be provided with solar electric power supply system 13 outside the LNG storage tank 1, solar electric power supply system 13 is connected with motor 31.
When pressure in the LNG storage tank 1 surpasses setting value or when supernatant liquid density is less than setting value in the upper LNG storage tank 1, motor 31 can receive the run signal of transmission, make stirring system 2 begin to rotate, the lower LNG of temperature of lower floor is up moved, absorb the BOG gas of gasification, reach the effect of step-down, effectively prevented from causing rolling because layering takes place the LNG in the LNG storage tank 1.
Be enlightenment with above-mentioned foundation desirable embodiment of the present utility model, by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this model utility technological thought.The technical scope of this model utility is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (4)
1. LNG storage tank stirring apparatus, it is characterized in that: comprise LNG storage tank (1), stirring system (2) and drive system (3), described LNG storage tank (1) top is provided with pressure transducer (11), described LNG storage tank (1) middle part is provided with density sensing system (12), described stirring system (2) comprises driving steel pole (21), impeller (22) and pedestal (23), described driving steel pole (21) is arranged in impeller (22) center, and fixedly connected with impeller (22), described pedestal (23) is fixed on LNG storage tank (1) inwall, described driving steel pole (21) two ends are rotationally connected with on the pedestal (23), described drive system (3) comprises motor (31), electromagnetic block (32) and motor cabinet (33), described drive system (3) is fixedly connected on LNG storage tank (1) outside by motor cabinet (33), corresponding with pedestal (23), described motor (31) is fixedly connected on the motor cabinet (33), described electromagnetic block (32) is fixedlyed connected with motor (31) rotating shaft, described drive system (3) is connected with pressure transducer (11) signal, and described drive system (3) is connected with density sensor (12) signal.
2. according to the described LNG storage tank of claim 1 stirring apparatus, it is characterized in that: the outer solar electric power supply system (13) that is provided with of described LNG storage tank (1).
3. according to the described LNG storage tank of claim 2 stirring apparatus, it is characterized in that: described solar electric power supply system (13) is connected with motor (31) circuit.
4. according to the described LNG storage tank of claim 1 stirring apparatus, it is characterized in that: described electromagnetic block (32) central shaft and driving steel pole (21) central shaft overlap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320230531 CN203202619U (en) | 2013-04-28 | 2013-04-28 | Stirring device of LNG storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320230531 CN203202619U (en) | 2013-04-28 | 2013-04-28 | Stirring device of LNG storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203202619U true CN203202619U (en) | 2013-09-18 |
Family
ID=49146726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320230531 Expired - Fee Related CN203202619U (en) | 2013-04-28 | 2013-04-28 | Stirring device of LNG storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203202619U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644454A (en) * | 2013-11-29 | 2014-03-19 | 中国海洋石油总公司 | Liquid anti-rolling positioning charging and circulating device for liquefied natural gas storage tank |
| CN108533955A (en) * | 2018-06-06 | 2018-09-14 | 张家港艾普能源装备有限公司 | LNG storage tank |
| CN110542016A (en) * | 2019-09-09 | 2019-12-06 | 浙江海洋大学 | LNG storage tank assembly |
-
2013
- 2013-04-28 CN CN 201320230531 patent/CN203202619U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644454A (en) * | 2013-11-29 | 2014-03-19 | 中国海洋石油总公司 | Liquid anti-rolling positioning charging and circulating device for liquefied natural gas storage tank |
| CN103644454B (en) * | 2013-11-29 | 2016-08-24 | 中国海洋石油总公司 | LNG tank liquid anti-rolling location fills and EGR |
| CN108533955A (en) * | 2018-06-06 | 2018-09-14 | 张家港艾普能源装备有限公司 | LNG storage tank |
| CN110542016A (en) * | 2019-09-09 | 2019-12-06 | 浙江海洋大学 | LNG storage tank assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20140428 |