CN201680657U - Heat pipe type cold energy utilization device based on liquefied natural gas station and refrigeration house - Google Patents
Heat pipe type cold energy utilization device based on liquefied natural gas station and refrigeration house Download PDFInfo
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- CN201680657U CN201680657U CN2010201280878U CN201020128087U CN201680657U CN 201680657 U CN201680657 U CN 201680657U CN 2010201280878 U CN2010201280878 U CN 2010201280878U CN 201020128087 U CN201020128087 U CN 201020128087U CN 201680657 U CN201680657 U CN 201680657U
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Abstract
The utility model relates to a heat pipe type cold energy utilization device based on a liquefied natural gas station and a refrigeration house, which is structurally characterized in that a liquefied natural gas storage tank outlet is connected with a liquefied natural gas pump, a liquefied natural gas pump outlet is connected with a master adjusting valve and a bypass adjusting valve through two pipelines in parallel connection, the main adjusting valve is connected with a heat pipe type gasifier inlet, an outlet of the bypass adjusting valve is joined with an outlet of the heat pipe type gasifier inlet and connected to an inlet of a terminal gasifier, an outlet of the terminal gasifier is connected with a natural gas tube net, condensing sections of a first heat pipe, a second heat pipe and a third heat pipe are respectively inserted into the heat pipe type gasifier, and evaporating sections of the first heat pipe, the second heat pipe and the third heat pipe are respectively inserted into a high-temperature refrigerating house, a low-temperature refrigerating house and a freezer. The cold energy utilization device solves the problem of high running cost and leakage hazard of a refrigerating agent pump, is easy to control as the heat pipes have different evaporating temperatures without extra power, is remarkable in energy-saving effect, and reduces leakage result to the minimum.
Description
Technical field
The utility model relates to a kind of cold energy use device, particularly a kind of heat pipe-type cold energy use device based on liquefied natural gas station and freezer.
Background technology
Natural gas has obtained using widely as a kind of high-quality clean energy resource.Be convenient transportation and storage, the processing of generally natural gas being liquefied earlier, long-pending 1/600 of the gaseous state that is reduced into of liquefaction back natural-gas.When the supply user uses, gasify again, can discharge the cold energy of 830～860kJ/kg in this process.For this cold energy, conventional processing mode all is directly to use air or seawater to carry out heat exchange, has caused great energy dissipation.
Before the utility model proposes, application number is that 200420114636.0 utility model patent discloses a kind of " reclaiming the refrigerating plant that cold energy of liquefied natural gas is used for freezer ", this patent is to utilize the R410A cold-producing medium as refrigerant, itself and liquefied natural gas are carried out energy exchange, the air that the cold energy that obtains is passed in freezer and the storehouse carries out heat exchange then, thereby has reached the purpose that cold energy of liquefied natural gas is provided energy for freezer.But in said system, refrigerant relies on refrigerated medium pump and axial flow blower to realize circulating, and the phase transformation flow process in this series pipe is very complicated, and gaseous flow rate is higher, and the control difficulty is bigger, is difficult to guarantee operation steady in a long-term.In addition, because the circulation of refrigerant is in the single flow process, promptly the refrigerant pipeline all is communicated with, and can't continue operation in case leakage system has taken place like this in freezer, has a large amount of refrigerants to enter freezer simultaneously, can the operation of freezer be produced serious influence.
Application number is that 200910055975.3 patent of invention discloses " a kind of refrigerant phase transformation-free freezer that reclaims cold energy of liquefied natural gas ", utilizes the R410A cold-producing medium to carry out cold energy exchange and transmission as refrigerant equally.But refrigerant remains liquid state in the scheme of this invention, does not promptly have the phase transformation operation.The benefit of doing like this is that the whole system flow process is fairly simple, and is easy to control, and can realize the cascade utilization of refrigerant cold.But, same because full liquid state is moved, and its required power consumption of flowing also can not be ignored, and the operation of refrigerated medium pump need expend a large amount of electric energy, also there be the risk of leakage problem the same simultaneously with aforementioned utility model patent.
Summary of the invention
The purpose of this utility model just is to overcome above-mentioned defective, designs a kind of heat pipe-type cold energy use device based on liquefied natural gas station and freezer.
The technical solution of the utility model is:
Heat pipe-type cold energy use device based on liquefied natural gas station and freezer, the outlet of LNG tank connects liquefied natural gas pump, the liquefied natural gas pump discharge is through two main inlet control valves that are connected in parallel, bypass valve, its major technique is characterised in that the main inlet control valve outlet links to each other with the import of heat pipe-type gasifier, the bypass valve outlet converges with the outlet of heat pipe-type gasifier, and is connected to terminal gasifier inlet; The outlet of terminal gasifier links to each other with gas distributing system, and the condensation segment of first heat pipe, second heat pipe, the 3rd heat pipe inserts the heat pipe-type gasifier respectively, and its evaporator section inserts high temperature cold storage, low-temperature cold-storage, freezer respectively.
The heat pipe-type cold energy use device that the utility model proposes based on liquefied natural gas station and freezer, when work, at first from LNG tank, extract the liquefied natural gas of low temperature out by liquefied natural gas pump, and it is pressurized to certain pressure, then along two parallel pipelines respectively by main inlet control valve and bypass valve; By the liquefied natural gas of the main inlet control valve heat pipe-type gasifier of flowing through again, and converge, enter the terminal gasifier afterwards and gasify, finally enter gas distributing system and use for the user with liquefied natural gas by bypass valve.Wherein, because first heat pipe, second heat pipe, the evaporator section of the 3rd heat pipe inserts high temperature cold storage respectively, low-temperature cold-storage and freezer, in each freezer, absorb certain heat, make the working medium vaporization of each inside heat pipe produce steam, because the effect steam flow of pressure reduction is inserted the condensation segment in the heat pipe-type gasifier, after arriving condensation segment, the liquified natural gas that heat transferred is flow through, the liquified natural gas temperature is raise and gasification, steam condensation in the heat pipe simultaneously, condensate liquid is back to the evaporator section that inserts in each freezer again, moves in circles like this, has just finished the process that the cold energy of liquefied natural gas is passed to freezers at different levels by heat pipe.
The scheme that the utility model proposes is compared with other technologies has very significantly advantage:
1. a whole system liquefied natural gas pump having only LNG tank outlet supercharging to use can produce power consumption, and other parts are all without extra power, and energy-saving effect is remarkable;
2. because the difference of the heat pipe that adopts, first heat pipe, second heat pipe and the 3rd heat pipe have different evaporating temperatures respectively, and can control temperature easily, therefore, can respectively freezer be remained on different temperature, thereby satisfy the running temperature demand of high temperature cold storage, low-temperature cold-storage and freezer;
3. the introducing by hot pipe technique, the working medium of inside heat pipe is promptly carried out the transmission of cold as refrigerant, because each heat pipe is not being communicated with other inside heat pipes of working alone, also only there is a small amount of working medium to flow out even therefore leakage phenomenon appears in a certain heat pipe, other heat pipes still can operate as normal, so just can not cause obvious influence, will leak consequence and be reduced to bottom line the operation of system.
The final effect that the utility model is realized is: on the one hand, by the introducing of heat pipe, avoided the power consumption of liquefied natural gas and refrigerant heat exchange process in the conventional art, saved a large amount of energy consumptions; On the other hand, the every characteristic that heat pipe works alone, the system that makes can satisfy different cryogenic temperature demands, has very high operational reliability simultaneously.
Description of drawings:
Fig. 1---system principle schematic diagram of the present utility model;
Systematic schematic diagram when Fig. 2---the utility model adopts separate heat pipe.
The specific embodiment:
As shown in Figure 1:
The heat pipe-type cold energy use device based on liquefied natural gas station and freezer that the utility model proposes comprises LNG tank 1, liquefied natural gas pump 2, main inlet control valve 3, bypass valve 4, heat pipe-type gasifier 5, the first heat pipes 6, second heat pipe 7, the 3rd heat pipe 8, high temperature cold storage 9, low-temperature cold-storage 10, freezer 11, terminal gasifier 12.Wherein, the export pipeline of LNG tank 1 connects liquefied natural gas pump 2; The outlet of liquefied natural gas pump 2 connects main inlet control valve 3 and bypass valve 4 through two parallel pipelines; Main inlet control valve 3 outlets link to each other with the import of heat pipe-type gasifier 5; And the outlet of the outlet of bypass valve 4 and heat pipe-type gasifier 5 converges, and is connected to the inlet of terminal gasifier 12; The outlet of terminal gasifier 12 links to each other with gas distributing system; The condensation segment of first heat pipe 6, second heat pipe 7, the 3rd heat pipe 8 inserts heat pipe-type gasifier 5 respectively, and evaporator section inserts high temperature cold storage 9, low-temperature cold-storage 10 and freezer 11 respectively.First heat pipe, second heat pipe, the 3rd heat pipe are integral heat pipe.Working medium in first heat pipe 6, second heat pipe 7, the 3rd heat pipe 8 is R410A or ammonia.
The liquefied natural gas of low temperature is at first extracted out by the system of present embodiment from LNG tank 1 by liquefied natural gas pump 2 when work, and it is pressurized to certain pressure, passes through main inlet control valve 3 and bypass valve 4 respectively along two parallel pipelines then; By the liquefied natural gas of the main inlet control valve 3 heat pipe-type gasifier 5 of flowing through again, and converge, enter terminal gasifier 12 afterwards and gasify, finally enter gas distributing system and use for the user with liquefied natural gas by bypass valve 4.Wherein, because first heat pipe 6, second heat pipe 7, the evaporator section of the 3rd heat pipe 8 inserts high temperature cold storage 9 respectively, low-temperature cold-storage 10 and freezer 11, in each freezer, absorb certain heat, make the working medium vaporization of each inside heat pipe produce steam, because the effect steam flow of pressure reduction is inserted the condensation segment in the heat pipe-type gasifier 5, after arriving condensation segment, the liquified natural gas that heat transferred is flow through, the liquified natural gas temperature is raise and gasification, steam condensation in the heat pipe simultaneously, condensate liquid is back to the evaporator section that inserts in each freezer again, moves in circles like this, has just finished the process that the cold energy of liquefied natural gas is passed to freezers at different levels by heat pipe.
Except that adopting above-mentioned embodiment, when LNG tank is far away apart from freezer, also first heat pipe, 6, the second heat pipes, 7, the three heat pipes 8 can be adopted separate heat pipe respectively, as shown in Figure 2.Its running is identical with the foregoing description 1.
The foregoing description can be realized by the aperture of regulating main inlet control valve 3 and bypass valve 4 regulating the size that reclaims cold energy of liquefied natural gas, in order to satisfy the actual refrigeration duty demand of freezer when operation.Working medium in the heat pipe is R410A or ammonia, can control the temperature of first heat pipe, second heat pipe and the 3rd heat pipe evaporator section by regulating heat transfer area, thereby satisfy the different temperature requirement of each freezer.
Claims (3)
1. based on the heat pipe-type cold energy use device of liquefied natural gas station and freezer, the outlet of LNG tank connects liquefied natural gas pump, the liquefied natural gas pump discharge is through two main inlet control valves that are connected in parallel, bypass valve, it is characterized in that the main inlet control valve outlet links to each other with the import of heat pipe-type gasifier, the bypass valve outlet converges with the outlet of heat pipe-type gasifier, and is connected to terminal gasifier inlet; The outlet of terminal gasifier links to each other with gas distributing system, and the condensation segment of first heat pipe, second heat pipe, the 3rd heat pipe inserts the heat pipe-type gasifier respectively, and its evaporator section inserts high temperature cold storage, low-temperature cold-storage, freezer respectively.
2. the heat pipe-type cold energy use device based on liquefied natural gas station and freezer according to claim 1 is characterized in that described first heat pipe, second heat pipe, the 3rd heat pipe are integral heat pipe or separate heat pipe.
3. the heat pipe-type cold energy use device based on liquefied natural gas station and freezer according to claim 1, the working medium that it is characterized in that described first heat pipe, second heat pipe, the 3rd heat pipe is R410A or ammonia.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201280878U CN201680657U (en) | 2010-03-11 | 2010-03-11 | Heat pipe type cold energy utilization device based on liquefied natural gas station and refrigeration house |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201280878U CN201680657U (en) | 2010-03-11 | 2010-03-11 | Heat pipe type cold energy utilization device based on liquefied natural gas station and refrigeration house |
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| CN201680657U true CN201680657U (en) | 2010-12-22 |
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| CN2010201280878U Expired - Fee Related CN201680657U (en) | 2010-03-11 | 2010-03-11 | Heat pipe type cold energy utilization device based on liquefied natural gas station and refrigeration house |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538526A (en) * | 2012-02-21 | 2012-07-04 | 天津商业大学 | Refrigeration capacity recovery heat exchanger for liquefied natural gas refrigerator wagon |
| CN105509523A (en) * | 2015-12-15 | 2016-04-20 | 武汉工程大学 | LNG carburetor adopting heat pipe |
| CN106642800A (en) * | 2017-01-24 | 2017-05-10 | 江苏德邦工程有限公司 | LNG gasification cold energy cold storage system and cold energy recovery method |
| CN106979666A (en) * | 2017-04-19 | 2017-07-25 | 苏州市兴鲁空分设备科技发展有限公司 | Methane purifying plant |
| CN107345728A (en) * | 2017-06-16 | 2017-11-14 | 上海工程技术大学 | A kind of cold energy of liquefied natural gas peculiar to vessel is used for the System and method for of freezer refrigerating |
| CN113446881A (en) * | 2021-06-23 | 2021-09-28 | 中国科学院广州能源研究所 | Heat pipe type high-pressure low-temperature liquid gasification heating process cold energy recovery device |
-
2010
- 2010-03-11 CN CN2010201280878U patent/CN201680657U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538526A (en) * | 2012-02-21 | 2012-07-04 | 天津商业大学 | Refrigeration capacity recovery heat exchanger for liquefied natural gas refrigerator wagon |
| CN105509523A (en) * | 2015-12-15 | 2016-04-20 | 武汉工程大学 | LNG carburetor adopting heat pipe |
| CN106642800A (en) * | 2017-01-24 | 2017-05-10 | 江苏德邦工程有限公司 | LNG gasification cold energy cold storage system and cold energy recovery method |
| CN106642800B (en) * | 2017-01-24 | 2022-09-20 | 江苏德邦工程有限公司 | LNG (liquefied Natural gas) gasification cold energy refrigeration house system and cold energy recovery method thereof |
| CN106979666A (en) * | 2017-04-19 | 2017-07-25 | 苏州市兴鲁空分设备科技发展有限公司 | Methane purifying plant |
| CN107345728A (en) * | 2017-06-16 | 2017-11-14 | 上海工程技术大学 | A kind of cold energy of liquefied natural gas peculiar to vessel is used for the System and method for of freezer refrigerating |
| CN113446881A (en) * | 2021-06-23 | 2021-09-28 | 中国科学院广州能源研究所 | Heat pipe type high-pressure low-temperature liquid gasification heating process cold energy recovery device |
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| Date | Code | Title | Description |
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| 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: 20101222 Termination date: 20140311 |