CN204345957U - BOG cold energy utilization device - Google Patents
BOG cold energy utilization device Download PDFInfo
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- CN204345957U CN204345957U CN201420687512.5U CN201420687512U CN204345957U CN 204345957 U CN204345957 U CN 204345957U CN 201420687512 U CN201420687512 U CN 201420687512U CN 204345957 U CN204345957 U CN 204345957U
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- refrigerating medium
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- high pressure
- storage tank
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Abstract
The utility model discloses a kind of BOG cold energy utilization device, comprise heat exchanger, refrigerating medium storage tank, fan coil, gases at high pressure cooler and compressor, the BOG input of heat exchanger exports with the BOG at LNG storage tank top and is connected, the BOG output of heat exchanger is connected with the BOG low temperature flow channel entry point of gases at high pressure cooler, the refrigerating medium input of heat exchanger is connected with the refrigerating medium output of fan coil, the refrigerating medium output of heat exchanger is connected with the import of refrigerating medium storage tank, the outlet of refrigerating medium storage tank is connected with the refrigerating medium input of fan coil by refrigerating medium delivery pump, the end of gases at high pressure cooler is provided with compressor.Its structure is simple, be connected compact and the cold energy contained in BOG fully can be absorbed.
Description
Technical field
The utility model relates to liquefied natural gas energy utilization device, refers to a kind of BOG cold energy utilization device particularly.
Background technology
Liquefied natural gas (Liquefied Natural Gas, be called for short LNG) be by natural gas after treatment, and be cooled to about-160 DEG C storing liquid products, it is a kind of clean energy resource that the world today extensively adopts, there is the features such as clean environment firendly, use safety, economical, supply convenience, technology maturation, its volume is 1/600 under gaseous state, and storage, transport have obvious advantage.
LNG be usually stored in there is well insulated measure container in, but still importing into of inevitable heat, causes the evaporation of LNG, causes the generation of BOG (liquefied natural gas flash steam); Under the operating mode of loading-unloading vehicle, handling ship, the amount of BOG also will sharply increase.At present, the processing mode of BOG is more, is delivered to pipe network after usually being compressed by BOG cryogenic compressor, or by entering the compression of normal temperature compressed machine after the re-heat of air temperature type recuperator, then be delivered to pipe network; The cold that BOG discharges is not utilized, and can impact environment.As by BOG the cold recovery that contains, for freezer/air-conditioning cooling, and Compressed Gas cooling, will great energy-saving and emission-reduction benefit be brought.
Summary of the invention
The purpose of this utility model will provide a kind of BOG cold energy utilization device exactly, and its structure is simple, be connected compact and the cold energy contained in BOG fully can be absorbed.
For achieving the above object, the BOG cold energy utilization device designed by the utility model, comprise heat exchanger, refrigerating medium storage tank, fan coil, gases at high pressure cooler and compressor, its special character is:
The cold medium input of heat exchanger is exported with the BOG at LNG storage tank top by first flow control valve and is connected, the cold medium output of heat exchanger is connected with the low temperature flow channel entry point of gases at high pressure cooler by the first stop valve, the refrigerating medium input of heat exchanger is connected with the refrigerating medium output of fan coil, the refrigerating medium output of heat exchanger is connected with the import of refrigerating medium storage tank, and the outlet of refrigerating medium storage tank is connected with the refrigerating medium input of fan coil by refrigerating medium delivery pump.
The low temperature runner exit of gases at high pressure cooler is connected with the inlet end of compressor, and the outlet side of compressor and the high temperature flow channel entry point of gases at high pressure cooler, the high temperature runner exit of gases at high pressure cooler is connected with LNG gas consuming device.
Preferably, adjustment bypass is provided with between the BOG outlet at LNG storage tank top and the low temperature flow channel entry point of gases at high pressure cooler, regulate in bypass and be provided with air temperature type recuperator, the BOG input of air temperature type recuperator is exported with the BOG at LNG storage tank top by second adjustable valve and is connected, and the BOG output of air temperature type recuperator is connected with the low temperature flow channel entry point of gases at high pressure cooler by the second stop valve.
Operation principle of the present utility model is: regulate first flow control valve and second adjustable valve according to by cold demand, and the BOG outlet of low temperature BOG from LNG storage tank top enters the heating of air temperature type recuperator and heat exchanger and cold medium and carry out heat exchange; Then, BOG is by the low temperature runner input compressor pressurizes of gases at high pressure cooler, BOG after pressurization is by the high temperature runner input LNG gas consuming device of gases at high pressure cooler, and refrigerating medium then inputs refrigerating medium storage tank, and then carries out heat exchange by refrigerating medium delivery pump input fan coil.
The utility model is used to have following advantage:
One, is provided with adjustment bypass, can realize the recovery of BOG cold energy, storage and utilization according to cold demand.
Its two, BOG cold energy can make full use of in the cooling of freezer, air-conditioning and high-pressure natural gas, decreases the impact of BOG re-heat on environment, can save process system overall energy consumption simultaneously, improve energy utilization rate, reach the effect of energy-saving and emission-reduction.
Accompanying drawing explanation
Fig. 1 is a kind of assembly structure schematic diagram of BOG cold energy utilization device.
In figure: LNG storage tank 1; Air temperature type recuperator 2; Heat exchanger 3; Refrigerating medium storage tank 4; Refrigerating medium delivery pump 5; Fan coil 6; Gases at high pressure cooler 7; Compressor 8; LNG gas consuming device 9; First flow control valve 10; Second adjustable valve 11; First stop valve 12; Second stop valve 13; Regulate bypass 14.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, but this embodiment should not be construed restriction of the present utility model.
A kind of BOG cold energy utilization device as shown in Figure 1, comprises heat exchanger 3, refrigerating medium storage tank 4, fan coil 6, gases at high pressure cooler 7 and compressor 8.
The cold medium input of heat exchanger 3 is exported with the BOG at LNG storage tank 1 top by first flow control valve 10 and is connected, the cold medium output of heat exchanger 3 is connected with the low temperature flow channel entry point of gases at high pressure cooler 7 by the first stop valve 12, the refrigerating medium input of heat exchanger 3 is connected with the refrigerating medium output of fan coil 6, the refrigerating medium output of heat exchanger 3 is connected with the import of refrigerating medium storage tank 4, and the outlet of refrigerating medium storage tank 4 is connected with the refrigerating medium input of fan coil 6 by refrigerating medium delivery pump 5;
The low temperature runner exit of gases at high pressure cooler 7 is connected with the inlet end of compressor 8, and the outlet side of compressor 8 and the high temperature flow channel entry point of gases at high pressure cooler 7, the high temperature runner exit of gases at high pressure cooler 7 is connected with LNG gas consuming device 9.
In the technical program, be provided with between the BOG outlet at LNG storage tank 1 top and the low temperature flow channel entry point of gases at high pressure cooler 7 and regulate bypass 14, regulate in bypass 14 and be connected with air temperature type recuperator 2, the BOG input of air temperature type recuperator 2 is exported with the BOG at LNG storage tank 1 top by second adjustable valve 11 and is connected, and the BOG output of air temperature type recuperator 2 is connected with the low temperature flow channel entry point of gases at high pressure cooler 7 by the second stop valve 13.
During utility model works, first regulate first flow control valve 10 and second adjustable valve 11 according to by cold demand, the BOG outlet of low temperature BOG from LNG storage tank 1 top enters air temperature type recuperator 2 heating and heat exchanger 3 carries out heat exchange with cold medium; Then, BOG is pressurizeed by the low temperature runner input compressor 8 of gases at high pressure cooler 7, BOG after pressurization by the high temperature runner of gases at high pressure cooler 7 input LNG gas consuming device 9, refrigerating medium input refrigerating medium storage tank 4, and then input fan coil 6 by refrigerating medium delivery pump 5 and carry out heat exchange.
The content be not described in detail in this description, belongs to the known prior art of those skilled in the art.
Claims (2)
1. a BOG cold energy utilization device, comprises heat exchanger (3), refrigerating medium storage tank (4), fan coil (6), gases at high pressure cooler (7) and compressor (8), it is characterized in that:
The cold medium input of described heat exchanger (3) is exported with the BOG at LNG storage tank (1) top by first flow control valve (10) and is connected, the cold medium output of described heat exchanger (3) is connected with the low temperature flow channel entry point of gases at high pressure cooler (7) by the first stop valve (12), the refrigerating medium input of described heat exchanger (3) is connected with the refrigerating medium output of fan coil (6), the refrigerating medium output of described heat exchanger (3) is connected with the import of refrigerating medium storage tank (4), the outlet of described refrigerating medium storage tank (4) is connected by the refrigerating medium input of refrigerating medium delivery pump (5) with fan coil (6),
The low temperature runner exit of described gases at high pressure cooler (7) is connected with the inlet end of compressor (8), the outlet side of described compressor (8) is connected with the high temperature flow channel entry point of gases at high pressure cooler (7), and the high temperature runner exit of described gases at high pressure cooler (7) is connected with LNG gas consuming device (9).
2. BOG cold energy utilization device according to claim 1, it is characterized in that: be provided with between the BOG outlet at described LNG storage tank (1) top and the low temperature flow channel entry point of gases at high pressure cooler (7) and regulate bypass (14), described adjustment bypass (14) is provided with air temperature type recuperator (2), the BOG input of described air temperature type recuperator (2) is exported with the BOG at LNG storage tank (1) top by second adjustable valve (11) and is connected, the BOG output of described air temperature type recuperator (2) is connected with the BOG low temperature flow channel entry point of gases at high pressure cooler (7) by the second stop valve (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420687512.5U CN204345957U (en) | 2014-11-17 | 2014-11-17 | BOG cold energy utilization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420687512.5U CN204345957U (en) | 2014-11-17 | 2014-11-17 | BOG cold energy utilization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204345957U true CN204345957U (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420687512.5U Active CN204345957U (en) | 2014-11-17 | 2014-11-17 | BOG cold energy utilization device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121974A (en) * | 2016-06-30 | 2016-11-16 | 日照海达尔加气设备有限公司 | A kind of cryogenic energy utilization liquefied natural gas compressor and method |
| CN107366832A (en) * | 2017-07-25 | 2017-11-21 | 广州华丰能源科技有限公司 | A kind of LNG satellite stations cold energy generation skid makeup is put |
-
2014
- 2014-11-17 CN CN201420687512.5U patent/CN204345957U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121974A (en) * | 2016-06-30 | 2016-11-16 | 日照海达尔加气设备有限公司 | A kind of cryogenic energy utilization liquefied natural gas compressor and method |
| CN106121974B (en) * | 2016-06-30 | 2018-01-26 | 日照海达尔加气设备有限公司 | A kind of cryogenic energy utilization liquefied natural gas compression set and method |
| CN107366832A (en) * | 2017-07-25 | 2017-11-21 | 广州华丰能源科技有限公司 | A kind of LNG satellite stations cold energy generation skid makeup is put |
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