CN218032644U - Low-temperature liquid receiving disc for gas dome - Google Patents
Low-temperature liquid receiving disc for gas dome Download PDFInfo
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- CN218032644U CN218032644U CN202220991276.0U CN202220991276U CN218032644U CN 218032644 U CN218032644 U CN 218032644U CN 202220991276 U CN202220991276 U CN 202220991276U CN 218032644 U CN218032644 U CN 218032644U
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- bearing disc
- liquid bearing
- liquid
- gas dome
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Abstract
A gas dome low-temperature liquid bearing disc is characterized in that a gas dome is arranged at the top of a fuel storage cabin, an insulating layer is wrapped outside the gas dome, and a liquid bearing device is arranged along the circumferential direction of the gas dome; the liquid bearing device is provided with an upper liquid bearing disc and a lower liquid bearing disc, the upper liquid bearing disc is inserted into the insulating layer to be fixed, and the lower liquid bearing disc is fixed below the upper liquid bearing disc through a support. The upper part holds liquid dish bottom downwardly extending and has the upper portion to let out the pipe, and upper portion let out the socle portion stretch into the lower part and hold the liquid dish in, the lower part holds liquid dish bottom downwardly extending and has the lower part to let out the pipe, is provided with the low temperature stop valve on the pipe is let out to the lower part. According to the upper liquid bearing disc and the lower liquid bearing disc which are small in volume and light in weight, the upper liquid bearing disc and the lower liquid bearing disc are stably supported through the insulation fixing of the gas dome and the supporting rod, the gas dome structure is not welded, the gas dome structure is not in direct contact with the gas dome structure of the low-temperature tank body, the low temperature in the tank cannot be conducted to the upper liquid bearing disc through the gas dome structure, the loss of cold energy in the fuel tank cannot be caused, the low-temperature liquid leakage of the gas dome bearing of the lower liquid bearing disc is avoided, and the low-temperature leakage protection area is increased.
Description
Technical Field
The invention relates to the field of a marine fuel storage cabin, in particular to a gas dome low-temperature liquid receiving disc on the marine fuel storage cabin.
Background
Clean fuels such as liquefied natural gas and liquid ammonia are increasingly used as marine fuels. These cryogenic liquid fuel storage tanks are of the type a, B, C, membrane, and the like, with the type C fuel tank being the more common tank type.
A plurality of pipelines for entering and exiting the fuel cabin are arranged in the air dome area at the top of the open C-shaped fuel cabin, valves are arranged on the pipelines, and a passage opening cover for personnel to enter and exit the fuel cabin when necessary is further arranged on the air dome. These pipeline valves and access ports cover the possibility of leaking cryogenic liquid fuel and a drip pan is required to collect the leaked cryogenic liquid fuel and prevent it from flowing to the deck and causing structural frost damage.
The conventional liquid bearing disc and the air dome body are directly welded, and the low temperature in the fuel tank is conducted to the liquid bearing disc through the air dome to dissipate, so that the low temperature loss of the fuel tank is caused. Meanwhile, the personnel arranged around the air dome operate the passing platform, the conventional liquid bearing disc is directly welded with the air dome above the platform, the size of the surface area and the size of the volume of the liquid bearing disc can be limited by the platform, and a good effect cannot be achieved.
Disclosure of Invention
In order to solve the problems, the invention provides a gas dome low-temperature liquid receiving disc, which adopts the technical scheme that:
a gas dome low-temperature liquid bearing disc is characterized in that a gas dome is arranged at the top of a fuel storage cabin, an insulating layer is wrapped outside the gas dome, and a liquid bearing device is arranged along the circumferential direction of the gas dome; the liquid bearing device is provided with an upper liquid bearing disc and a lower liquid bearing disc, the lower liquid bearing disc is fixed below the upper liquid bearing disc through a support, the upper liquid bearing disc is provided with an inner side baffle and an outer side baffle, the inner side baffle is inserted into the insulating layer for fixing, and an insulating baffle ring is arranged outside the insulating layer and at a position corresponding to the inner side baffle; the upper part holds liquid dish bottom downwardly extending and has the upper portion to let out the pipe, and upper portion let out the socle portion stretch into the lower part and hold the liquid dish in, the lower part holds liquid dish bottom downwardly extending and has the lower part to let out the pipe, is provided with the low temperature stop valve on the pipe is let out to the lower part.
According to the gas dome low-temperature liquid receiving disc, furthermore, the upper liquid receiving disc and the lower liquid receiving disc are arranged along the circumferential direction of the gas dome.
According to the gas dome low-temperature liquid receiving disc, the insulating baffle ring is further wrapped in the insulating layer.
In the gas dome low-temperature liquid receiving disc, the height of the outer side baffle plate is higher than that of the inner side baffle plate.
In the gas dome low-temperature liquid receiving disc, the bracket is further fixed on one side of the lower liquid receiving disc close to the gas dome.
The gas dome cryogenic liquid receiving disc is characterized in that the fuel storage tank is an A-type tank, a B-type tank, a C-type tank or a film-type tank.
The invention has the advantages that:
when the low-temperature tank is used, the upper liquid bearing disc and the lower liquid bearing disc which are small in volume and light in weight are stably supported through the insulation fixing of the gas dome and the supporting rod, are not welded with the gas dome structure and are not in direct contact with the gas dome structure of the low-temperature tank, and low temperature in the tank cannot be conducted to the upper liquid bearing disc through the gas dome structure, so that the loss of cooling capacity in the fuel tank cannot be caused. The low-temperature liquid fuel leaked from the pipeline valve and the channel cover on the gas dome is collected by the upper liquid bearing disc and flows into the lower liquid bearing disc through the drain pipe. The lower liquid bearing disc and the platform around the gas dome are connected through the component, the volume of the lower liquid bearing disc can be large enough, a large amount of low-temperature liquid in the region of the gas dome can be borne, and the low-temperature leakage protection region can be increased. When rainwater in the liquid bearing disc is accumulated, the rainwater can be discharged through the lower liquid bearing disc discharge valve.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
wherein: 1-air dome, 2-insulating layer, 3-upper liquid bearing disc, 3.1-inner side baffle, 3.2-insulating baffle ring, 3.3-outer side baffle, 4-upper discharge pipe, 5-lower liquid bearing disc, 6-fuel tank, 7-lower discharge pipe, 8-low temperature stop valve and 9-support rod.
Detailed Description
The invention is further explained with reference to the drawings.
As shown in fig. 1, a gas dome is arranged at the top of a fuel storage cabin, an insulating layer is wrapped outside the gas dome, a liquid bearing device is arranged along the circumferential direction of the gas dome and provided with an upper liquid bearing disc and a lower liquid bearing disc, the upper liquid bearing disc and the lower liquid bearing disc are arranged along the circumferential direction of the gas dome, one end of the upper liquid bearing disc is inserted into the insulating layer to be fixed, and the lower liquid bearing disc is fixed below the upper liquid bearing disc through a support and is not in contact with the gas dome.
Upper portion holds the liquid dish and has interior side shield and outside baffle, and interior side shield inserts the insulating layer internal fixation, and the insulating layer is outer, is provided with insulating barrier circle with the corresponding position of interior side shield, and upper portion holds liquid dish bottom downwardly extending has upper portion to leak the pipe, and upper portion is leaked the socle and is stretched into lower part and hold in the liquid dish, and lower part holds liquid dish bottom downwardly extending has lower part to leak the pipe, is provided with the low temperature stop valve on the pipe is leaked to the lower part. The parts of the invention are all made of stainless steel.
When the low-temperature liquid fuel leakage prevention device is used, low-temperature liquid fuel leaked from a gas dome area flows into the upper liquid bearing disc along the insulating outer surface of the gas dome, then is discharged into the lower liquid bearing disc through the upper discharge pipe to be collected, and the low-temperature stop valve arranged on the lower liquid bearing disc is normally in a closed state, so that the low-temperature liquid fuel is prevented from flowing onto a main deck to damage a steel structure of the main deck. If rainwater accumulates in the lower liquid bearing disc, the low-temperature stop valve is opened to discharge the rainwater.
The upper liquid bearing disc and the lower liquid bearing disc which are small in volume and light in weight keep stable in supporting through the insulation fixing of the gas dome and the supporting rod, are not welded with the gas dome structure and are not in direct contact with the gas dome structure of the low-temperature tank body, low temperature in the tank cannot be conducted to the liquid bearing discs through the gas dome structure, and cold loss in the fuel tank cannot be caused. The low-temperature liquid fuel leaked from the pipeline valve on the air dome and the channel cover is collected by the upper liquid bearing disc and flows into the lower liquid bearing disc through the discharge pipe. The lower liquid bearing disc and the platform around the gas dome are connected through the component, the volume of the lower liquid bearing disc can be large enough, a large amount of low-temperature liquid in the region of the gas dome can be borne, and the low-temperature leakage protection region can be increased. When rainwater in the liquid bearing disc is accumulated, the rainwater can be discharged through the lower liquid bearing disc discharge valve.
Claims (6)
1. The utility model provides a gas vault cryogenic liquids accepts dish which characterized in that: the top of the fuel storage cabin is provided with an air dome, the air dome is wrapped by an insulating layer, and a liquid bearing device is arranged along the circumferential direction of the air dome;
the liquid bearing device is provided with an upper liquid bearing disc and a lower liquid bearing disc, the lower liquid bearing disc is fixed below the upper liquid bearing disc through a support, two sides of the upper liquid bearing disc are provided with an inner side baffle and an outer side baffle, the inner side baffle is inserted into the insulating layer for fixing, and an insulating baffle ring is arranged outside the insulating layer and at a position corresponding to the inner side baffle;
the upper part holds liquid dish bottom downwardly extending and has upper portion to let out the pipe, and upper portion let out the socle portion stretch into the lower part and hold in the liquid dish, and lower part holds liquid dish bottom downwardly extending and has the lower part to let out the pipe, is provided with the low temperature stop valve on the lower part let out the pipe.
2. A gas dome cryogenic liquid receiving tray according to claim 1, wherein: the upper liquid bearing disc and the lower liquid bearing disc are arranged along the circumferential direction of the air dome.
3. A gas dome cryogenic liquid receiving tray as claimed in claim 1, wherein: the insulating baffle ring is wrapped in the insulating layer.
4. A gas dome cryogenic liquid receiving tray according to claim 1, wherein: the height of the outer baffle is higher than that of the inner baffle.
5. A gas dome cryogenic liquid receiving tray according to claim 1, wherein: the support is fixed on one side of the lower liquid bearing disc close to the air dome.
6. A gas dome cryogenic liquid receiving tray as claimed in claim 1, wherein: the fuel storage cabin is an A-type cabin, a B-type cabin, a C-type cabin or a film-type cabin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220991276.0U CN218032644U (en) | 2022-04-27 | 2022-04-27 | Low-temperature liquid receiving disc for gas dome |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220991276.0U CN218032644U (en) | 2022-04-27 | 2022-04-27 | Low-temperature liquid receiving disc for gas dome |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218032644U true CN218032644U (en) | 2022-12-13 |
Family
ID=84371972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220991276.0U Active CN218032644U (en) | 2022-04-27 | 2022-04-27 | Low-temperature liquid receiving disc for gas dome |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218032644U (en) |
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2022
- 2022-04-27 CN CN202220991276.0U patent/CN218032644U/en active Active
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