CN218883670U - Liquid hydrogen fuel vaporizer for ship - Google Patents
Liquid hydrogen fuel vaporizer for ship Download PDFInfo
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- CN218883670U CN218883670U CN202223243348.2U CN202223243348U CN218883670U CN 218883670 U CN218883670 U CN 218883670U CN 202223243348 U CN202223243348 U CN 202223243348U CN 218883670 U CN218883670 U CN 218883670U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Abstract
The utility model discloses a marine liquid hydrogen vaporizer of liquid hydrogen fuel, include: the cylinder is provided with two ends which are respectively sealed by end sockets, an outer partition plate and an inner partition plate are respectively arranged in the two ends of the cylinder, a hydrogen cavity is formed between each outer partition plate and the end socket on the side where the outer partition plate is located, an end air cavity is formed between each outer partition plate and the inner partition plate on the side where the outer partition plate is located, a cooling liquid cavity is formed between the two inner partition plates, one hydrogen cavity is a liquid hydrogen cavity, the other hydrogen cavity is a gas hydrogen cavity, a liquid hydrogen inlet pipe is arranged on the end socket of the liquid hydrogen cavity, a gas hydrogen outlet pipe is arranged on the end socket of the gas hydrogen cavity, a plurality of heat exchange outer pipes are arranged in the cooling liquid cavity, two ends of each heat exchange outer pipe are respectively arranged on the two inner partition plates in a penetrating manner, an annular air passage is reserved between each heat exchange inner pipe and the heat exchange outer pipe, two ends of each heat exchange inner pipe are respectively arranged on the two outer partition plates in a penetrating manner, and a middle gas inlet pipe, a middle gas outlet pipe, a cooling liquid inlet pipe and a cooling liquid inlet pipe are arranged on the cylinder. The liquid hydrogen vaporizer is well suited for use in liquid hydrogen fuel vessels.
Description
Technical Field
The utility model relates to a liquid hydrogen vaporization equipment field, concretely relates to marine liquid hydrogen vaporizer of liquid hydrogen fuel.
Background
At present, liquid hydrogen is not used as fuel in the civil field, particularly in the field of marine fuel tanks, but due to the characteristics of high energy density, small working pressure, high safety performance, cleanness and environmental protection of the liquid hydrogen, the demand is small at the initial development stage of various hydrogen-related industries, but the liquid hydrogen is inevitably trended to enter the field of the marine fuel tanks as the fuel in a rapid increasing period. The increasing of the marine fuel tanks inevitably leads to the further significance of key equipment in the marine fuel tank gas supply system, namely the 'liquid hydrogen vaporizer'. How to better solve the influence of the 'liquid hydrogen vaporizer' on the gas supply system for the liquid hydrogen ship has very important strategic significance. How to ensure the complete vaporization and stable gas supply of the liquid hydrogen fuel in the fuel gas supply system for the ship plays an important role in the safe operation of the liquid hydrogen fuel ship.
At present, the vaporizers available for reference in the market are mainly vaporizers for Liquefied Natural Gas (LNG), but due to the large difference in physical and chemical properties of liquid hydrogen and liquefied natural gas, particularly, the boiling point of liquid hydrogen is lower (the boiling point of liquid hydrogen is-253 ℃, the boiling point of liquefied natural gas is-162 ℃), the density of liquid hydrogen is smaller (liquid hydrogen is 70.83 kg/m and the density of liquefied natural gas is 426 kg/m), the explosion limit range is larger (the explosion limit range of liquid hydrogen in the air is 4% -75%, and the explosion limit range of liquefied natural gas in the air is 5% -15%), in all gases, the specific heat capacity of hydrogen is the largest, the heat conductivity is the highest, the viscosity is the lowest, and therefore, the requirements on the safety performance and the stability performance of the liquid hydrogen vaporizer for the liquid hydrogen fuel ship are more important.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: a liquid hydrogen fuel vaporizer for a liquid hydrogen fuel ship suitable for use on a liquid hydrogen fuel ship will be provided.
In order to solve the above problem, the utility model discloses the technical scheme who adopts does: a liquid hydrogen vaporizer for a liquid hydrogen fueled marine vessel, comprising: the cylinder of lying placing, the both ends of cylinder are sealed through an head respectively, its characterized in that: an outer partition plate and an inner partition plate are respectively arranged at two ends of the cylinder, the two inner partition plates are positioned between the two outer partition plates, the side walls of the two outer partition plates and the two inner partition plates are fixedly sealed with the inner wall of the cylinder, so that the outer partition plates and the inner partition plates can partition the inner cavity of the cylinder, so that a hydrogen cavity is formed between each outer partition plate and the end enclosure on the side of the outer partition plate, an end air cavity is formed between each outer partition plate and the inner partition plate on the side of the outer partition plate, a cooling liquid cavity is formed between the two inner partition plates, one hydrogen cavity is a liquid hydrogen cavity, the other hydrogen cavity is a gas hydrogen cavity, a liquid hydrogen inlet pipe communicated with the liquid hydrogen cavity is arranged on the end enclosure of the liquid hydrogen cavity, a gas hydrogen outlet pipe communicated with the gas hydrogen cavity is arranged on the end enclosure of the gas hydrogen cavity, a plurality of heat exchange outer pipes are arranged in the cooling liquid cavity between the two inner baffles, two ends of each heat exchange outer pipe are respectively arranged on the two inner baffles in a penetrating way and are respectively communicated with the two end air cavities, a heat exchange inner pipe is arranged in each heat exchange outer pipe in a penetrating way, an annular air flue is reserved between each heat exchange inner pipe and the corresponding heat exchange outer pipe, two ends of each annular air flue are respectively communicated with two end air cavities, two ends of each heat exchange inner pipe are respectively arranged on the two outer partition plates in a penetrating way and are respectively communicated with the two hydrogen cavities, the cylinder is provided with a middle air inlet pipe, a middle air outlet pipe, a cooling liquid inlet pipe and a cooling liquid outlet pipe, the middle air inlet pipe, the middle air outlet pipe and two end air cavities are respectively communicated one by one, the cooling liquid inlet pipe and the cooling liquid outlet pipe are respectively communicated with the cooling liquid cavity, the middle air inlet pipe and the cooling liquid inlet pipe are close to the liquid hydrogen inlet pipe, and the middle air outlet pipe and the cooling liquid outlet pipe are close to the gas hydrogen outlet pipe.
Further, the liquid hydrogen fuel vaporizer for a ship comprises: the heat exchange outer tube is a spiral finned tube.
Further, the liquid hydrogen fuel vaporizer for the ship comprises: the upper fin of the spiral finned tube is an aluminum sheet.
Further, the liquid hydrogen fuel vaporizer for the ship comprises: the middle gas inlet pipe, the middle gas outlet pipe, the cooling liquid inlet pipe and the cooling liquid outlet pipe are all arranged at the top of the cylinder.
Further, the liquid hydrogen fuel vaporizer for the ship comprises: the seal head is an elliptical seal head.
Further, the liquid hydrogen fuel vaporizer for the ship comprises: the hydrogen for intermediate heat exchange is introduced into the two end air cavities and the annular air passages through the intermediate air inlet pipe, and the cooling liquid of the marine engine is introduced into the cooling liquid cavity through the cooling liquid inlet pipe.
The utility model has the advantages that: the liquid hydrogen vaporizer for the liquid hydrogen fuel ship can vaporize liquid hydrogen by using cooling liquid in a ship engine, and in the vaporization process, the intermediate gas is used for transferring cold energy, so that the cooling liquid is not easy to freeze, the liquid hydrogen can be stably and completely vaporized, and the liquid hydrogen fuel ship can stably obtain gas hydrogen serving as fuel.
Drawings
Fig. 1 is a schematic structural diagram of a liquid hydrogen vaporizer for a liquid hydrogen fuel ship according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings.
As shown in fig. 1, a liquid hydrogen vaporizer for a liquid hydrogen fuel ship includes: a cylinder 1 which is placed horizontally, two ends of the cylinder 1 are respectively sealed by an end enclosure 2, two ends of the cylinder 1 are respectively provided with an outer partition plate 3 and an inner partition plate 4, the two inner partition plates 4 are positioned between the two outer partition plates 3, the side walls of the two outer partition plates 3 and the two inner partition plates 4 are fixedly sealed with the inner wall of the cylinder 1, so that the outer partition plates 3 and the inner partition plates 4 can separate the inner cavity of the cylinder 1, a hydrogen cavity is formed between each outer partition plate 3 and the end enclosure 2 at the side of the outer partition plate 3, an end air cavity 7 is formed between each outer partition plate 3 and the inner partition plate 4 at the side of the outer partition plate, a cooling liquid cavity 8 is formed between the two inner partition plates 4, one hydrogen cavity is a liquid hydrogen cavity 5, the other hydrogen cavity is a gas hydrogen cavity 6, a liquid hydrogen inlet pipe 9 communicated with the liquid hydrogen cavity 5 is arranged on the end enclosure 2 of the liquid hydrogen cavity 5, a gas hydrogen outlet pipe 10 communicated with the gas hydrogen cavity 6 is arranged on the end enclosure 2 of the gas hydrogen cavity, a plurality of the liquid hydrogen cavity 11, a plurality of liquid hydrogen inlet pipes 11 are respectively communicated with the middle of the inner pipe 7 of the outer pipe, a heat exchange pipe 12 is respectively communicated with the two ends of the middle inner pipe 12 of the two outer pipe, a heat exchange pipe 12 is respectively communicated with the two inner pipe 12, a heat exchange pipe 12, two heat exchange pipe 12 arranged on the middle inner pipe 12, a heat exchange pipe 12 and a heat exchange pipe 12, a heat exchange pipe 12 communicated with the middle inner pipe 12 on the middle of the outer pipe 7 of the two outer pipe 7, the cooling liquid inlet pipe 15 and the cooling liquid outlet pipe 16 are respectively communicated with the cooling liquid cavity 8, the middle gas inlet pipe 13 and the cooling liquid inlet pipe 15 are arranged close to the liquid hydrogen inlet pipe 9, and the middle gas outlet pipe 14 and the cooling liquid outlet pipe 16 are arranged close to the gas hydrogen outlet pipe 10.
In this embodiment, the heat exchange outer tube 11 is a spiral finned tube, and fins on the spiral finned tube are aluminum sheets. The middle gas inlet pipe 13, the middle gas outlet pipe 14, the cooling liquid inlet pipe 15 and the cooling liquid outlet pipe 16 are all arranged at the top of the cylinder 1. The end socket 2 is an elliptical end socket. The hydrogen for intermediate heat exchange is introduced into the two end air cavities 7 and the respective annular air passages 17 through the intermediate air inlet pipe 13, and the coolant of the marine engine is introduced into the coolant cavity 8 through the coolant inlet pipe 15.
During operation, hydrogen for intermediate heat exchange is introduced into the two end air cavities 7 and the annular air passages 17 through the intermediate air inlet pipe 13, after heat exchange, the hydrogen for intermediate heat exchange leaves the vaporizer from the intermediate air outlet pipe 14, the temperature of cooling liquid of the marine engine can rise to about 90 ℃ after cooling the engine, the warmed cooling liquid is introduced into the cooling liquid cavity 8 through the cooling liquid inlet pipe 15, after heat exchange, the cooled cooling liquid leaves the vaporizer from the cooling liquid outlet pipe 16, the liquid hydrogen inlet pipe 9 is connected with the liquid hydrogen storage tank, the air hydrogen outlet pipe 10 is connected with the air hydrogen storage tank, the liquid hydrogen enters the liquid hydrogen cavity 5 through the liquid hydrogen inlet pipe 9 and then enters each heat exchange inner pipe 12, because the liquid hydrogen is frozen after direct heat exchange between the ultralow temperature (-253 ℃) of the liquid hydrogen and the ultralow temperature liquid hydrogen (the freezing point T is approximately-60 ℃) and then is easy to freeze, after being frozen, the normal operation of the vaporizer can be influenced, so as to prevent the cooling liquid hydrogen from being frozen, intermediate air is specially arranged, in the heat exchange between the cooling liquid hydrogen in the intermediate air cavity 8 and the annular air passages 17, and then the vaporized hydrogen can be subjected to heat exchange with the heat exchange from the intermediate air gas, and the liquid hydrogen in the annular air passages 17, and then the vaporized hydrogen can be obtained by the liquid hydrogen in the liquid hydrogen inlet pipe 10.
The parts of the end socket 2, the outer partition plate 3 and the heat exchange inner tube 12 which are contacted with hydrogen are made of S31608-LH liquid hydrogen special materials, so that the compatibility of the selected materials and a hydrogen medium is ensured; the cylinder 1, the inner baffle 4 and the heat exchange outer tube 11 are made of S30408 materials, so that the corrosion resistance and the welding performance of the materials are ensured; the fins on the spiral finned tube are aluminum sheets, so that the heat transfer performance of the finned tube is improved by utilizing the good heat conductivity and the high specific area of the spiral structure of the aluminum material.
Claims (6)
1. A liquid hydrogen vaporizer for a liquid hydrogen fueled marine vehicle, comprising: the cylinder of lying placing, the both ends of cylinder are sealed through an head respectively, its characterized in that: an outer partition plate and an inner partition plate are respectively arranged at two ends of the cylinder, the two inner partition plates are positioned between the two outer partition plates, the side walls of the two outer partition plates and the two inner partition plates are fixedly sealed with the inner wall of the cylinder, so that the outer partition plates and the inner partition plates can partition the inner cavity of the cylinder, so that a hydrogen cavity is formed between each outer partition plate and the end enclosure on the side of the outer partition plate, an end air cavity is formed between each outer partition plate and the inner partition plate on the side of the outer partition plate, a cooling liquid cavity is formed between the two inner partition plates, one hydrogen cavity is a liquid hydrogen cavity, the other hydrogen cavity is a gas hydrogen cavity, a liquid hydrogen inlet pipe communicated with the liquid hydrogen cavity is arranged on the end enclosure of the liquid hydrogen cavity, a gas hydrogen outlet pipe communicated with the gas hydrogen cavity is arranged on the end enclosure of the gas hydrogen cavity, a plurality of heat exchange outer pipes are arranged in the cooling liquid cavity between the two inner baffles, two ends of each heat exchange outer pipe are respectively arranged on the two inner baffles in a penetrating way and are respectively communicated with the two end air cavities, a heat exchange inner pipe is arranged in each heat exchange outer pipe in a penetrating way, an annular air flue is reserved between each heat exchange inner pipe and the corresponding heat exchange outer pipe, two ends of each annular air flue are respectively communicated with two end air cavities, two ends of each heat exchange inner pipe are respectively arranged on the two outer partition plates in a penetrating way and are respectively communicated with the two hydrogen cavities, the cylinder is provided with a middle gas inlet pipe, a middle gas outlet pipe, a cooling liquid inlet pipe and a cooling liquid outlet pipe, the middle gas inlet pipe and the middle gas outlet pipe are respectively communicated with two end air cavities in a one-to-one mode, the cooling liquid inlet pipe and the cooling liquid outlet pipe are respectively communicated with the cooling liquid cavity, the middle gas inlet pipe and the cooling liquid inlet pipe are arranged close to the liquid hydrogen inlet pipe, and the middle gas outlet pipe and the cooling liquid outlet pipe are arranged close to the gas hydrogen outlet pipe.
2. The liquid hydrogen vaporizer for a liquid hydrogen fuel ship of claim 1, wherein: the heat exchange outer tube is a spiral finned tube.
3. The liquid hydrogen vaporizer for a liquid hydrogen fuel ship of claim 2, wherein: the upper fin of the spiral finned tube is an aluminum sheet.
4. A liquid hydrogen fuel vaporizer for a ship according to claim 1, 2 or 3, wherein: the middle gas inlet pipe, the middle gas outlet pipe, the cooling liquid inlet pipe and the cooling liquid outlet pipe are all arranged at the top of the cylinder.
5. A liquid hydrogen fuel vaporizer for a liquid hydrogen fuel ship according to claim 1, 2 or 3, wherein: the seal head is an elliptical seal head.
6. A liquid hydrogen fuel vaporizer for a ship according to claim 1, 2 or 3, wherein: the hydrogen for intermediate heat exchange is introduced into the two end air cavities and the annular air passages through the intermediate air inlet pipe, and the cooling liquid of the marine engine is introduced into the cooling liquid cavity through the cooling liquid inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223243348.2U CN218883670U (en) | 2022-12-05 | 2022-12-05 | Liquid hydrogen fuel vaporizer for ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223243348.2U CN218883670U (en) | 2022-12-05 | 2022-12-05 | Liquid hydrogen fuel vaporizer for ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218883670U true CN218883670U (en) | 2023-04-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223243348.2U Active CN218883670U (en) | 2022-12-05 | 2022-12-05 | Liquid hydrogen fuel vaporizer for ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218883670U (en) |
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2022
- 2022-12-05 CN CN202223243348.2U patent/CN218883670U/en active Active
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