CN204852920U - A BOG condensate recovery system for LNG atmospheric storage tank - Google Patents
A BOG condensate recovery system for LNG atmospheric storage tank Download PDFInfo
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- CN204852920U CN204852920U CN201520646540.7U CN201520646540U CN204852920U CN 204852920 U CN204852920 U CN 204852920U CN 201520646540 U CN201520646540 U CN 201520646540U CN 204852920 U CN204852920 U CN 204852920U
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Abstract
The utility model discloses a BOG condensate recovery system for LNG atmospheric storage tank, including LNG atmospheric storage tank (1), BOG condensation recoverer (2) and liquid nitrogen storage tank (3), the top of LNG atmospheric storage tank (1) is provided with BOG fairlead (4), BOG fairlead (4) are through the heat source channel import of pipe connection BOG condensation recoverer (2), the heat source channel export of BOG condensation recoverer (2) is through tube coupling LNG atmospheric storage tank (1), the fluid -discharge tube of tube coupling liquid nitrogen storage tank (3) is passed through in the cold source channel import of BOG condensation recoverer (2), the cold source channel exit linkage nitrogen gas blow -down pipe of BOG condensation recoverer (2). The beneficial effects of the utility model are that: make the pressure decrease of storage tank, once only drop into cost reduction, make the BOG gas in the storage tank realize the zero release, both practiced thrift the energy, also avoided the pollution to the environment.
Description
Technical field
The utility model relates to BOG gas recovery techniques field, particularly, relates to a kind of BOG condensate recovery system for LNG atmospheric storage tank.
Background technique
LNG(LNG Liquefied natural gas) be a kind of clean energy resource.Along with LNG fuel automobile (boats and ships), town dweller's combustion gas, boiler flue gas and the progressively extensive use of the field such as fuel gas generation, ceramic post sintering, LNG consumption requirements amount is just presenting quick growth trend in recent years.The source of LNG mainly contains two-part, namely usually said " land gas " (LNG that land LNG liquefaction plant is produced, normally transported by LNG transport vehicle), " extra large gas " (LNG is normally transported to land LNG receiving station by Large LNG cargo ship and stores by overseas LNG).LNG condensing temperature is at ambient pressure about-162 DEG C; although LNG warehousing and transportation facilities or LNG conveyance conduit all take good cold insulation protective measure; but owing to there is the very large temperature difference between itself and environment; the heat absorption evaporation of LNG storing, in transportation process always exists, and BOG(LNG naturally absorbs heat the gas evaporated in the processes such as storages, transport) generation inevitable.LNG is along with the continuous increase of caloric receptivity, the production of BOG can increase gradually, LNG accumulating pressure also can constantly rise thereupon, if do not take effective step-down measure in the case, for avoiding accidents such as causing superpressure safely, when LNG accumulating pressure reaches certain pressure, generally can carry out release by diffusing mode automatic or manual to air, diffusing of BOG can cause environmental pollution, energy waste and economic loss.For this reason, the recycling of BOG just becomes in LNG application project the problem needing to solve.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of BOG condensate recovery system for LNG atmospheric storage tank saved the energy, avoided environmental pollution.
The technical scheme in the invention for solving the above technical problem is:
A kind of BOG condensate recovery system for LNG atmospheric storage tank, comprise LNG atmospheric storage tank, BOG condensation recovering device and liquid nitrogen storage tank, the top of LNG atmospheric storage tank is provided with BOG fairlead, BOG fairlead connects the heat source passages import of BOG condensation recovering device by pipeline, the heat source passages outlet of BOG condensation recovering device connects LNG atmospheric storage tank by pipeline, namely BOG becomes LNG and turns back to LNG atmospheric storage tank after cooled with liquid nitrogen, the low-temperature receiver channel entrance of BOG condensation recovering device connects the liquid-discharging tube of liquid nitrogen storage tank by pipeline, the low-temperature receiver channel outlet of BOG condensation recovering device connects nitrogen blow-down pipe, nitrogen blow-down pipe connects liquid nitrogen emptying storage tank pipe, liquid nitrogen storage tank blow-down pipe connects the gas-phase space of liquid nitrogen storage tank.
Liquid nitrogen and BOG are reclaimed in condenser at BOG and completes heat exchange, the pressure of storage tank is reduced, and disposable input cost reduces, and makes the BOG gas in storage tank achieve zero-emission, has both saved the energy, it also avoid the pollution to environment.
In LNG atmospheric storage tank due to the formation of BOG pressure increase, thus BOG enters BOG condensation recovering device through BOG fairlead automatically carries out condensation, therefore condensation process is for automatically to carry out, without the need to additionally arranging power equipment, saving energy consumption.
Also comprise control system, described LNG atmospheric storage tank is provided with the pressure-detecting device A for detecting LNG atmospheric storage tank pressure, nitrogen blow-down pipe is provided with the temperature-detecting device A for detecting nitrogen leak temperature in nitrogen blow-down pipe, the pipeline of the heat source passages import of connection BOG fairlead and BOG condensation recovering device is provided with gas shut-off valve A, the pipeline of the low-temperature receiver channel entrance of connection BOG condensation recovering device and the liquid-discharging tube of liquid nitrogen storage tank is provided with liquid nitrogen flow modulating valve, pressure-detecting device A, temperature-detecting device A, gas shut-off valve A is all connected with control system with liquid nitrogen flow modulating valve, telecontrol is realized by control system.The outlet conduit of BOG condensation recovering device thermal source, i.e. LNG pipeline, be provided with temperature-detecting device B, for detecting the temperature of LNG after condensation.When LNG atmospheric storage tank topping up, gas shut-off valve A and liquid nitrogen flow modulating valve is opened by control system, the BOG gas that LNG atmospheric storage tank produces just enters BOG condensation recovering device, and the liquid nitrogen simultaneously in liquid nitrogen storage tank flows into BOG condensation recovering device, cools the BOG gas entered; When temperature-detecting device A detects that in nitrogen blow-down pipe, nitrogen temperature is higher than setting value, or when pressure-detecting device A detects that the pressure of LNG atmospheric storage tank exceedes setting value, control system controls liquid nitrogen flow control valve opening and increases, when temperature-detecting device A detects that in nitrogen blow-down pipe, nitrogen temperature is lower than setting value, or when pressure-detecting device A detects the pressure of LNG atmospheric storage tank lower than setting value, control system controls liquid nitrogen flow control valve opening and reduces.
By detecting pipeline and tank temperature, pressure, adopting control system to achieve the auto-control of condensate recovery system, stable and reliable operation, saving artificial.
Nitrogen blow-down pipe is provided with the pressure-detecting device B for detecting nitrogen pressure in nitrogen blow-down pipe, nitrogen blow-down pipe is connected nitrogen emptying house steward with liquid nitrogen storage tank blow-down pipe by threeway, thus the nitrogen in the nitrogen of nitrogen blow-down pipe and liquid nitrogen storage tank blow-down pipe converges to nitrogen emptying house steward, nitrogen emptying house steward connects nitrogen discharge device, nitrogen emptying house steward is provided with Emergeny Cutoff Valves, pressure-detecting device B is all connected with control system with Emergeny Cutoff Valves, realizes telecontrol by control system.When pressure-detecting device B detects that in nitrogen blow-down pipe, nitrogen pressure is higher than setting value, control system controls Emergeny Cutoff Valves and opens, and nitrogen is by the external emptying of nitrogen discharge device; When pressure-detecting device B detects that in nitrogen blow-down pipe, nitrogen pressure is lower than setting value, control system controls Emergeny Cutoff Valves and closes, and prevents humid air from entering.
By arranging pressure-detecting device B, threeway and Emergeny Cutoff Valves, achieving the Stress control to liquid nitrogen circulation loop, avoiding the generation of high pressure operating mode, safety and stability, and the same control system that adopts carries out regulation and control saving manually.
The outer cover of described BOG condensation recovering device is equipped with cold insulated cabinet, is filled with cold insulation material in cold insulated cabinet between BOG condensation recovering device and the inwall of cold insulated cabinet.
By arranging cold insulated cabinet and cold insulation material, greatly reducing the loss of cold, saving energy consumption.
Preferably, described cold insulation material is pearlife.
Preferably, described BOG condensation recovering device is plate-fin heat exchanger.
Preferably; nitrogen protection pipeline is also provided with in described cold insulated cabinet; prevent humid air from entering cold insulated cabinet and have influence on cold insulation effect; nitrogen blow-down pipe is communicated with cold insulated cabinet by arm; in the nitrogen protection pipeline of cold insulated cabinet, nitrogen is inputted by arm; thus the cold insulation material in cold insulated cabinet inside and cold insulated cabinet is kept dry, arm is provided with control valve.Cold insulated cabinet top is provided with exhaust-valve, cold insulation material inlet and inspection manhole.
Precooling chuck is also connected with between the low-temperature receiver channel outlet of BOG condensation recovering device and heat source passages entrance, described precooling chuck has tubular interior tube layer and is sheathed on the chuck layer outside interior tube layer, interior tube layer and chuck layer are airtight cavity, interior tube layer is provided with the two ends of chuck layer the interface being communicated with respective internal cavity, the low-temperature receiver channel outlet of condensation recovering device connects the interface A of chuck layer, another interface B of chuck layer connects nitrogen blow-down pipe, the interface A of interior tube layer connects heat source passages entrance, another interface B of interior tube layer connects BOG fairlead, the interface A of chuck layer and the interface A of interior tube layer is positioned at same one end of precooling chuck, thus utilize the nitrogen of discharge to carry out pre-cooled to thermal source BOG, thermal source BOG gas walks interior tube layer, low-temperature receiver nitrogen walks chuck layer, the pre-heat exchange of adverse current.By arranging precooling chuck, increasing the heat exchange area of liquid nitrogen and BOG, improve condensation efficiency.
Preferably, the position residing for BOG condensation recovering device is positioned at the top of LNG atmospheric storage tank present position, and condensed LNG is by certainly reentering LNG atmospheric storage tank.
To sum up, the beneficial effects of the utility model are:
The utility model makes liquid nitrogen and BOG reclaim in condenser at BOG and completes heat exchange, and the pressure of storage tank is reduced, and disposable input cost reduces, and makes the BOG gas in storage tank achieve zero-emission, has both saved the energy, it also avoid the pollution to environment.
In LNG atmospheric storage tank due to the formation of BOG pressure increase, thus BOG enters BOG condensation recovering device through BOG fairlead automatically carries out condensation, therefore condensation process is for automatically to carry out, without the need to additionally arranging power equipment, saving energy consumption.
By detecting line temperature, pressure, adopting control system to achieve the auto-control of condensate recovery system, stable and reliable operation, saving artificial.
By arranging pressure-detecting device B, threeway and Emergeny Cutoff Valves, achieving the Stress control to liquid nitrogen circulation loop, avoiding the generation of high pressure operating mode, safety and stability, and the same control system that adopts carries out regulation and control saving manually.
By arranging cold insulated cabinet and cold insulation material, greatly reducing the loss of cold, saving energy consumption.
By arranging precooling chuck, increasing the heat exchange area of liquid nitrogen and BOG, improve condensation efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Mark and corresponding component title in accompanying drawing:
1-LNG atmospheric storage tank, 2-BOG condensation recovering device, 3-liquid nitrogen storage tank, 4-BOG fairlead, 5-pressure-detecting device A, 6-temperature-detecting device A, 7-gas shut-off valve A, 8-liquid nitrogen flow modulating valve, 9-pressure-detecting device B, 10-Emergeny Cutoff Valves, 11-cold insulated cabinet, 12-LNG pipeline, 13-temperature-detecting device B.
Embodiment
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the utility model do, but mode of execution of the present utility model is not limited thereto.
Embodiment:
As shown in Figure 1, a kind of BOG condensate recovery system for LNG atmospheric storage tank, comprise LNG atmospheric storage tank 1, BOG condensation recovering device 2 and liquid nitrogen storage tank 3, the top of LNG atmospheric storage tank 1 is provided with BOG fairlead 4, BOG fairlead 4 connects the heat source passages import of BOG condensation recovering device 2 by pipeline, the heat source passages outlet of BOG condensation recovering device 2 connects LNG atmospheric storage tank 1 by pipeline, namely BOG becomes LNG and turns back to LNG atmospheric storage tank 1 after cooled with liquid nitrogen, the low-temperature receiver channel entrance of BOG condensation recovering device 2 connects the liquid-discharging tube of liquid nitrogen storage tank 3 by pipeline, the low-temperature receiver channel outlet of BOG condensation recovering device 2 connects nitrogen blow-down pipe, nitrogen blow-down pipe connects liquid nitrogen emptying storage tank pipe, liquid nitrogen storage tank blow-down pipe connects the gas-phase space of liquid nitrogen storage tank 3.
Liquid nitrogen and BOG are reclaimed in condenser at BOG and completes heat exchange, the pressure of storage tank is reduced, and disposable input cost reduces, and makes the BOG gas in storage tank achieve zero-emission, has both saved the energy, it also avoid the pollution to environment.
In LNG atmospheric storage tank 1 due to the formation of BOG pressure increase, thus BOG enters BOG condensation recovering device 2 through BOG fairlead 4 automatically carries out condensation, therefore condensation process is for automatically to carry out, without the need to additionally arranging power equipment, saving energy consumption.
Also comprise control system, described LNG atmospheric storage tank 1 is provided with the pressure-detecting device A5 for detecting LNG atmospheric storage tank 1 pressure, nitrogen blow-down pipe is provided with the temperature-detecting device A6 for detecting nitrogen leak temperature in nitrogen blow-down pipe, the pipeline of the heat source passages import of connection BOG fairlead 4 and BOG condensation recovering device 2 is provided with gas shut-off valve A7, the pipeline of the low-temperature receiver channel entrance of connection BOG condensation recovering device 2 and the liquid-discharging tube of liquid nitrogen storage tank 3 is provided with liquid nitrogen flow modulating valve 8, pressure-detecting device A5, temperature-detecting device A6, gas shut-off valve A7 is all connected with control system with liquid nitrogen flow modulating valve 8, telecontrol is realized by control system.The outlet conduit of BOG condensation recovering device 2 thermal source, i.e. LNG pipeline 12, be provided with temperature-detecting device B13, for detecting the temperature of LNG after condensation.When LNG atmospheric storage tank 1 topping up, gas shut-off valve A7 and liquid nitrogen flow modulating valve 8 is opened by control system, the BOG gas that LNG atmospheric storage tank 1 produces just enters BOG condensation recovering device 2, and the liquid nitrogen simultaneously in liquid nitrogen storage tank 3 flows into BOG condensation recovering device 2, cools the BOG gas entered; When temperature-detecting device A6 detects that in nitrogen blow-down pipe, nitrogen temperature is higher than setting value, or when pressure-detecting device A5 detects that the pressure of LNG atmospheric storage tank 1 exceedes setting value, control system controls liquid nitrogen flow modulating valve 8 aperture and increases, when temperature-detecting device A6 detects that in nitrogen blow-down pipe, nitrogen temperature is lower than setting value, or when pressure-detecting device A5 detects the pressure of LNG atmospheric storage tank 1 lower than setting value, control system controls liquid nitrogen flow modulating valve 8 aperture and reduces.
By detecting pipeline and tank temperature, pressure, adopting control system to achieve the auto-control of condensate recovery system, stable and reliable operation, saving artificial.
Nitrogen blow-down pipe is provided with the pressure-detecting device B9 for detecting nitrogen pressure in nitrogen blow-down pipe, nitrogen blow-down pipe is connected nitrogen emptying house steward with liquid nitrogen storage tank blow-down pipe by threeway, thus the nitrogen in the nitrogen of nitrogen blow-down pipe and liquid nitrogen storage tank blow-down pipe converges to nitrogen emptying house steward, nitrogen emptying house steward connects nitrogen discharge device, nitrogen emptying house steward is provided with Emergeny Cutoff Valves 10, pressure-detecting device B9 is all connected with control system with Emergeny Cutoff Valves 10, realizes telecontrol by control system.When pressure-detecting device B9 detects that in nitrogen blow-down pipe, nitrogen pressure is higher than setting value, control system controls Emergeny Cutoff Valves 10 and opens, and nitrogen is by the external emptying of nitrogen discharge device; When pressure-detecting device B9 detects that in nitrogen blow-down pipe, nitrogen pressure is lower than setting value, control system controls Emergeny Cutoff Valves 10 and closes, and prevents humid air from entering.
By arranging pressure-detecting device B9, threeway and Emergeny Cutoff Valves 10, achieving the Stress control to liquid nitrogen circulation loop, avoiding the generation of high pressure operating mode, safety and stability, and the same control system that adopts carries out regulation and control saving manually.
The outer cover of described BOG condensation recovering device 2 is equipped with cold insulated cabinet 11, is filled with cold insulation material in cold insulated cabinet 11 between BOG condensation recovering device 2 and the inwall of cold insulated cabinet 11.
By arranging cold insulated cabinet 11 and cold insulation material, greatly reducing the loss of cold, saving energy consumption.
Preferably, described cold insulation material is pearlife.
Preferably, described BOG condensation recovering device 2 is plate-fin heat exchanger.
Preferably; nitrogen protection pipeline is also provided with in described cold insulated cabinet 11; prevent humid air from entering cold insulated cabinet 11 and having influence on cold insulation effect; nitrogen blow-down pipe is communicated with cold insulated cabinet 11 by arm; in the nitrogen protection pipeline of cold insulated cabinet 11, nitrogen is inputted by arm; thus the cold insulation material in cold insulated cabinet 11 inside and cold insulated cabinet 11 is kept dry, arm is provided with control valve.Cold insulated cabinet 11 top is provided with exhaust-valve, cold insulation material inlet and inspection manhole.
Precooling chuck is also connected with between the low-temperature receiver channel outlet of BOG condensation recovering device 2 and heat source passages entrance, described precooling chuck has tubular interior tube layer and is sheathed on the chuck layer outside interior tube layer, interior tube layer and chuck layer are airtight cavity, interior tube layer is provided with the two ends of chuck layer the interface being communicated with respective internal cavity, the low-temperature receiver channel outlet of condensation recovering device connects the interface A of chuck layer, another interface B of chuck layer connects nitrogen blow-down pipe, the interface A of interior tube layer connects heat source passages entrance, another interface B of interior tube layer connects BOG fairlead 4, the interface A of chuck layer and the interface A of interior tube layer is positioned at same one end of precooling chuck, thus utilize the nitrogen of discharge to carry out pre-cooled to thermal source BOG, thermal source BOG gas walks interior tube layer, low-temperature receiver nitrogen walks chuck layer, the pre-heat exchange of adverse current.By arranging precooling chuck, increasing the heat exchange area of liquid nitrogen and BOG, improve condensation efficiency.
Preferably, the position residing for BOG condensation recovering device 2 is positioned at the top of LNG atmospheric storage tank 1 present position, and condensed LNG is by certainly reentering LNG atmospheric storage tank 1.
The above-mentioned BOG condensate recovery system for LNG atmospheric storage tank is adopted to reclaim the method for BOG, BOG in LNG atmospheric storage tank 1 is introduced BOG condensation recovering device 2, and by the liquid nitrogen introducing BOG condensation recovering device 2, the BOG introduced is cooled, BOG is back to LNG atmospheric storage tank 1 after being cooled to LNG.
Also comprise adopting and cooled liquid nitrogen continuation is carried out to the step of carrying out precooling from the interior BOG drawn of LNG atmospheric storage tank 1 to BOG in BOG condensation recovering device 2.
Further, when LNG atmospheric storage tank 1 gas-phase space pressure superelevation, gas shut-off valve A7 and liquid nitrogen flow modulating valve 8 is opened by control system, the BOG gas that LNG atmospheric storage tank 1 produces just enters BOG condensation recovering device 2, liquid nitrogen simultaneously in liquid nitrogen storage tank 3 flows into BOG condensation recovering device 2, cools the BOG gas entered; When temperature-detecting device A6 detects that in nitrogen blow-down pipe, nitrogen temperature is higher than setting value, or when pressure-detecting device A5 detects that the pressure of LNG atmospheric storage tank 1 exceedes setting value, control system controls liquid nitrogen flow modulating valve 8 aperture and increases, when temperature-detecting device A6 detects that in nitrogen blow-down pipe, nitrogen temperature is lower than setting value, or when pressure-detecting device A5 detects the pressure of LNG atmospheric storage tank 1 lower than setting value, control system controls liquid nitrogen flow modulating valve 8 aperture and reduces.
Further, when pressure-detecting device B9 detects that in nitrogen blow-down pipe, nitrogen pressure is higher than setting value, control system controls Emergeny Cutoff Valves 10 and opens, and nitrogen is by the external emptying of nitrogen discharge device; When pressure-detecting device B9 detects that in nitrogen blow-down pipe, nitrogen pressure is lower than setting value, control system controls Emergeny Cutoff Valves 10 and closes, and prevents humid air from entering.
Also comprise and the liquid nitrogen completing heat exchange in BOG condensation recovering device 2 is caused in the cold insulated cabinet 11 of BOG condensation recovering device 2, to the step that cold insulated cabinet 11 inside cools.
The utility model makes liquid nitrogen and BOG reclaim in condenser at BOG and completes heat exchange, and the pressure of storage tank is reduced, and disposable input cost reduces, and makes the BOG gas in storage tank achieve zero-emission, has both saved the energy, it also avoid the pollution to environment.
In LNG atmospheric storage tank 1 due to the formation of BOG pressure increase, thus BOG enters BOG condensation recovering device 2 through BOG fairlead 4 automatically carries out condensation, therefore condensation process is for automatically to carry out, without the need to additionally arranging power equipment, saving energy consumption.
As mentioned above, the utility model can be realized preferably.
Claims (9)
1. the BOG condensate recovery system for LNG atmospheric storage tank, it is characterized in that, comprise LNG atmospheric storage tank (1), BOG condensation recovering device (2) and liquid nitrogen storage tank (3), the top of LNG atmospheric storage tank (1) is provided with BOG fairlead (4), BOG fairlead (4) connects the heat source passages import of BOG condensation recovering device (2) by pipeline, the heat source passages outlet of BOG condensation recovering device (2) connects LNG atmospheric storage tank (1) by pipeline, the low-temperature receiver channel entrance of BOG condensation recovering device (2) connects the liquid-discharging tube of liquid nitrogen storage tank (3) by pipeline, the low-temperature receiver channel outlet of BOG condensation recovering device (2) connects nitrogen blow-down pipe.
2. a kind of BOG condensate recovery system for LNG atmospheric storage tank according to claim 1, it is characterized in that, also comprise control system, described LNG atmospheric storage tank (1) is provided with the pressure-detecting device A(5 for detecting LNG atmospheric storage tank (1) pressure), nitrogen blow-down pipe is provided with the temperature-detecting device A(6 for detecting nitrogen leak temperature in nitrogen blow-down pipe), the pipeline of the heat source passages import of connection BOG fairlead (4) and BOG condensation recovering device (2) is provided with gas shut-off valve A(7), the pipeline of the low-temperature receiver channel entrance of connection BOG condensation recovering device (2) and the liquid-discharging tube of liquid nitrogen storage tank (3) is provided with liquid nitrogen flow modulating valve (8), pressure-detecting device A(5), temperature-detecting device A(6), gas shut-off valve A(7) be all connected with control system with liquid nitrogen flow modulating valve (8).
3. a kind of BOG condensate recovery system for LNG atmospheric storage tank according to claim 2, it is characterized in that, nitrogen blow-down pipe connects liquid nitrogen emptying storage tank pipe, nitrogen blow-down pipe is provided with the pressure-detecting device B(9 for detecting nitrogen pressure in nitrogen blow-down pipe), nitrogen blow-down pipe is connected nitrogen emptying house steward with liquid nitrogen storage tank blow-down pipe by threeway, nitrogen emptying house steward connects nitrogen discharge device, nitrogen emptying house steward is provided with Emergeny Cutoff Valves (10), pressure-detecting device B(9) be all connected with control system with Emergeny Cutoff Valves (10).
4. a kind of BOG condensate recovery system for LNG atmospheric storage tank according to claim 1, it is characterized in that, the outer cover of described BOG condensation recovering device (2) is equipped with cold insulated cabinet (11), is filled with cold insulation material between the inwall being positioned at BOG condensation recovering device (2) and cold insulated cabinet (11) in cold insulated cabinet (11).
5. a kind of BOG condensate recovery system for LNG atmospheric storage tank according to claim 1 or 4, is characterized in that, described BOG condensation recovering device (2) is plate-fin heat exchanger.
6. a kind of BOG condensate recovery system for LNG atmospheric storage tank according to claim 1, it is characterized in that, precooling chuck is also connected with between the low-temperature receiver channel outlet of BOG condensation recovering device (2) and heat source passages entrance, described precooling chuck has tubular interior tube layer and is sheathed on the chuck layer outside interior tube layer, interior tube layer and chuck layer are airtight cavity, interior tube layer is provided with the two ends of chuck layer the interface being communicated with respective internal cavity, the low-temperature receiver channel outlet of condensation recovering device connects the interface A of chuck layer, another interface B of chuck layer connects nitrogen blow-down pipe, the interface A of interior tube layer connects heat source passages entrance, another interface B of interior tube layer connects BOG fairlead (4), the interface A of chuck layer and the interface A of interior tube layer is positioned at same one end of precooling chuck.
7. a kind of BOG condensate recovery system for LNG atmospheric storage tank according to claim 4, it is characterized in that, described cold insulation material is pearlife.
8. a kind of BOG condensate recovery system for LNG atmospheric storage tank according to claim 4; it is characterized in that; also be provided with nitrogen protection pipeline in described cold insulated cabinet (11), nitrogen blow-down pipe is communicated with cold insulated cabinet (11) by arm, and arm is provided with control valve.
9. a kind of BOG condensate recovery system for LNG atmospheric storage tank according to claim 4, it is characterized in that, cold insulated cabinet (11) top is provided with exhaust-valve, cold insulation material inlet and inspection manhole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520646540.7U CN204852920U (en) | 2015-08-26 | 2015-08-26 | A BOG condensate recovery system for LNG atmospheric storage tank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520646540.7U CN204852920U (en) | 2015-08-26 | 2015-08-26 | A BOG condensate recovery system for LNG atmospheric storage tank |
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| CN204852920U true CN204852920U (en) | 2015-12-09 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135210A (en) * | 2015-08-26 | 2015-12-09 | 成都深冷科技有限公司 | BOG condensation recycling system and method for LNG normal-pressure storage tank |
| CN112228773A (en) * | 2019-07-15 | 2021-01-15 | 北京长征天民高科技有限公司 | Cryogenic test system |
| CN114321700A (en) * | 2021-12-30 | 2022-04-12 | 陕西融科低温设备有限公司 | Storage system and storage method of clean fuel |
-
2015
- 2015-08-26 CN CN201520646540.7U patent/CN204852920U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135210A (en) * | 2015-08-26 | 2015-12-09 | 成都深冷科技有限公司 | BOG condensation recycling system and method for LNG normal-pressure storage tank |
| CN105135210B (en) * | 2015-08-26 | 2017-08-29 | 成都深冷科技有限公司 | A kind of BOG condensate recovery systems and method for LNG atmospheric storage tanks |
| CN112228773A (en) * | 2019-07-15 | 2021-01-15 | 北京长征天民高科技有限公司 | Cryogenic test system |
| CN114321700A (en) * | 2021-12-30 | 2022-04-12 | 陕西融科低温设备有限公司 | Storage system and storage method of clean fuel |
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| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151209 Effective date of abandoning: 20170829 |