CN114933004A - Ship ammonia vapor liquefaction recovery system and ammonia fuel power ship - Google Patents
Ship ammonia vapor liquefaction recovery system and ammonia fuel power ship Download PDFInfo
- Publication number
- CN114933004A CN114933004A CN202210700247.9A CN202210700247A CN114933004A CN 114933004 A CN114933004 A CN 114933004A CN 202210700247 A CN202210700247 A CN 202210700247A CN 114933004 A CN114933004 A CN 114933004A
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- ammonia
- heat exchanger
- storage tank
- recovery system
- ammonia fuel
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 429
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 191
- 239000000446 fuel Substances 0.000 title claims abstract description 90
- 238000011084 recovery Methods 0.000 title claims abstract description 31
- 239000012530 fluid Substances 0.000 claims abstract description 46
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 13
- 239000002828 fuel tank Substances 0.000 description 14
- 239000007788 liquid Substances 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 239000013526 supercooled liquid Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000005431 greenhouse gas Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000004177 carbon cycle Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005713 exacerbation Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/38—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention provides a ship ammonia vapor liquefaction recovery system, which comprises an ammonia fuel storage tank, a low-pressure pump, a compressor, a heat exchanger and an ammonia fuel host; the low-pressure pump is arranged at the bottom of the ammonia fuel storage tank, an outlet of the low-pressure pump is communicated with a cold fluid inlet of the heat exchanger, and a cold fluid outlet of the heat exchanger is communicated with the ammonia fuel host; the inlet of the compressor is communicated with the top of the ammonia fuel storage tank, the outlet of the compressor is communicated with the hot fluid inlet of the heat exchanger, and the hot fluid outlet of the heat exchanger is communicated with the ammonia fuel storage tank or the ammonia fuel host. The invention utilizes the cold energy in the liquid ammonia fuel supply process to carry out reliquefaction treatment on the ammonia vapor, and has simple flow, economy and practicability. The invention also provides an ammonia fuel power ship.
Description
Technical Field
The invention relates to the technical field of ship ammonia fuel supply, in particular to a ship ammonia vapor liquefaction recovery system and an ammonia fuel power ship.
Background
With the exacerbation of the global warming problem, the reduction of greenhouse gas emissions is an important task facing the world today. The proportion of zero-carbon or low-carbon energy in the world energy consumption structure is improved, the greenhouse gas emission is reduced, and the carbon neutralization of a global carbon cycle system is promoted. In the field of marine shipping, ammonia is attracting much attention as a zero-carbon fuel. As a fuel for a ship engine, ammonia is usually stored in a fuel storage tank in the form of liquid ammonia at the temperature of minus 33 ℃, the liquid ammonia is inevitably subjected to heat absorption and evaporation due to environmental heat leakage in the storage process, and the pressure of the storage tank is increased due to the accumulation of ammonia vapor generated by evaporation, so that safety accidents are caused, and therefore the ammonia vapor needs to be treated.
At present, the method of directly absorbing the evaporated gas by adopting an ammonia gas treatment device can cause fuel waste, and excessive cost can be increased by adopting an additional refrigerating unit to reliquefy the ammonia vapor. For example, the patent No. CN202120101001.0 provides a ship power gas supply system with an ammonia fuel tank, which uses a compressor to pressurize, condense externally, and throttle the gas-liquid phase respectively to process the ammonia vapor part into liquid ammonia and return the liquid ammonia to the storage tank, and the system has a complicated flow and a high cost. Similarly, in a clean-emission marine power system as disclosed in CN202010226887.1, ammonia vapor is processed into liquid ammonia and returned to the storage tank by pressurizing with a compressor, supplying liquid ammonia for precooling, and condensing with an external refrigeration device, which is relatively complex and costly.
Disclosure of Invention
The invention aims to provide a ship ammonia vapor liquefaction recovery system, which utilizes cold energy in the liquid ammonia fuel supply process to carry out reliquefaction treatment on ammonia vapor, and has the advantages of simple flow, economy and practicability.
The invention provides a ship ammonia vapor liquefaction recovery system, which comprises an ammonia fuel storage tank, a low-pressure pump, a compressor, a heat exchanger and an ammonia fuel host; the low-pressure pump is arranged at the bottom of the ammonia fuel storage tank, an outlet of the low-pressure pump is communicated with a cold fluid inlet of the heat exchanger, and a cold fluid outlet of the heat exchanger is communicated with the ammonia fuel host; the inlet of the compressor is communicated with the top of the ammonia fuel storage tank, the outlet of the compressor is communicated with the hot fluid inlet of the heat exchanger, and the hot fluid outlet of the heat exchanger is communicated with the ammonia fuel storage tank or the ammonia fuel host.
Furthermore, the system for liquefying and recovering the ammonia vapor of the ship further comprises a connecting pipeline, one end of the connecting pipeline is communicated with a hot fluid outlet of the heat exchanger, and the other end of the connecting pipeline is communicated to a pipeline between a cold fluid outlet of the heat exchanger and the ammonia fuel host.
Further, the ship ammonia vapor liquefaction recovery system further comprises a return line, one end of the return line is communicated with a hot fluid outlet of the heat exchanger, and the other end of the return line is communicated with the ammonia fuel storage tank.
Furthermore, a throttle valve is arranged on the return pipeline.
Further, an ammonia vapor valve is arranged on a pipeline between the inlet of the compressor and the ammonia fuel storage tank.
Further, a pressure gauge is arranged on the ammonia fuel storage tank, and the pressure gauge is in signal connection with the ammonia vapor valve and the compressor at the same time.
Furthermore, a check valve is arranged on a pipeline between the outlet of the compressor and the hot fluid inlet of the heat exchanger.
Furthermore, a pressurizing unit is arranged on a pipeline between a cold fluid outlet of the heat exchanger and the ammonia fuel host, and the pressurizing unit is used for pressurizing liquid ammonia output by the heat exchanger.
Furthermore, a temperature adjusting unit is arranged on a pipeline between a cold fluid outlet of the heat exchanger and the ammonia fuel host, and the temperature adjusting unit is used for adjusting the temperature of the liquid ammonia output by the heat exchanger.
The invention also provides an ammonia fuel power ship, which comprises the above ammonia vapor liquefaction recovery system.
The invention provides a liquefied recovery system of ammonia vapor of a ship, which is characterized in that a compressor and a heat exchanger are arranged, the compressor is firstly utilized to pressurize the ammonia vapor generated in an ammonia fuel storage tank, then the ammonia vapor is condensed to a supercooled liquid state in the heat exchanger by utilizing cold energy in the liquid ammonia fuel supply process, the condensed liquid ammonia can be supplied to an ammonia fuel host for combustion on one hand, and on the other hand, the liquid ammonia can be throttled and depressurized to the storage tank pressure through a throttle valve, the temperature is reduced to the saturation temperature under the pressure, and the liquid ammonia returns to the ammonia fuel storage tank in a gas-liquid two-phase state, so that the ammonia vapor is recycled, and the pressure in the ammonia fuel storage tank is reduced. The ship ammonia vapor liquefaction recovery system is simple in flow, small in occupied space, capable of meeting the requirement of compact installation of ship space, economical and practical, and under the premise that the system accords with scientific principles, through reasonable design, the ship is free from potential safety hazards of overpressure of a storage tank, and system performance is more reliable.
Drawings
Fig. 1 is a schematic structural view of a liquefaction recovery system for marine ammonia vapor according to a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a liquefaction recovery system for ammonia vapor of a ship according to a second embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
First embodiment
As shown in fig. 1, a first embodiment of the present invention provides a system for liquefying and recovering ammonia vapor from a ship, which includes an ammonia fuel storage tank 1, a low-pressure pump 2, a compressor 3, a heat exchanger 4, and an ammonia fuel main engine 5; the low-pressure pump 2 is arranged at the bottom in the ammonia fuel storage tank 1, the outlet of the low-pressure pump 2 is communicated with the cold fluid inlet 41 of the heat exchanger 4, and the cold fluid outlet 42 of the heat exchanger 4 is communicated with the ammonia fuel host 5; the inlet of the compressor 3 is communicated with the top of the ammonia fuel storage tank 1, the outlet of the compressor 3 is communicated with the hot fluid inlet 43 of the heat exchanger 4, and the hot fluid outlet 44 of the heat exchanger 4 is communicated with the ammonia fuel host 5.
Specifically, the ammonia fuel tank 1 is used for storing liquid ammonia, and heat absorption and evaporation of the liquid ammonia are inevitably caused due to environmental heat leakage during the storage process, and the pressure of the ammonia fuel tank 1 is increased due to the accumulation of ammonia vapor generated by evaporation, so that safety accidents are caused, and therefore the ammonia vapor needs to be treated. According to the liquefied ammonia vapor recovery system for the ship, the compressor 3 and the heat exchanger 4 are arranged, the compressor 3 is firstly utilized to pressurize the ammonia vapor generated in the ammonia fuel storage tank 1, then the ammonia vapor is condensed to a supercooled liquid state in the heat exchanger 4 by utilizing cold energy in the liquid ammonia fuel supply process, and the condensed liquid ammonia can be supplied to the ammonia fuel host 5 for combustion, so that the ammonia vapor is recycled, and the pressure in the ammonia fuel storage tank 1 is reduced. The ship ammonia vapor liquefaction recovery system is simple in flow, small in occupied space, capable of meeting the requirement of compact installation of ship space, economical and practical, and under the premise that the system accords with scientific principles, through reasonable design, the ship is free from potential safety hazards of overpressure of a storage tank, and system performance is more reliable.
Further, as shown in fig. 1, in the present embodiment, the marine ammonia vapor liquefaction recovery system further includes a connecting pipeline 6, one end of the connecting pipeline 6 is communicated with the hot fluid outlet 44 of the heat exchanger 4, and the other end of the connecting pipeline 6 is communicated to a pipeline between the cold fluid outlet 42 of the heat exchanger 4 and the ammonia fuel host 5.
Further, in the present embodiment, the low pressure pump 2 may be an immersed pump, a deep well pump, or the like. The heat exchanger 4 may be a plate heat exchanger, a shell and tube heat exchanger or a wound tube heat exchanger. The heat exchanger 4 is designed to have an internal heat exchange structure according to the flow rate of ammonia vapor, the required inlet/outlet enthalpy difference, the flow rate of liquid ammonia, and the inlet/outlet enthalpy difference, so as to achieve the purpose of liquefying the ammonia vapor.
Further, as shown in fig. 1, in the present embodiment, an ammonia vapor valve 92 is provided in a pipe between the inlet of the compressor 3 and the ammonia fuel storage tank 1. The ammonia fuel storage tank 1 is provided with a pressure gauge 11, and the pressure gauge 11 is in signal connection with the ammonia vapor valve 92 and the compressor 3.
Specifically, the pressure gauge 11 is used to detect the pressure inside the ammonia fuel tank 1 and control the opening and closing of the ammonia vapor valve 92 and the compressor 3. When the pressure gauge 11 detects that the pressure of ammonia vapor in the ammonia fuel storage tank 1 reaches the upper pressure-bearing limit of the ammonia fuel storage tank 1, the ammonia vapor valve 92 is opened, the compressor 3 is started, the compressor 3 compresses the ammonia vapor to the outlet pressure of the low-pressure pump 2 and conveys the ammonia vapor to the heat exchanger 4, so that the ammonia vapor exchanges heat with liquid ammonia output by the low-pressure pump 2 in the heat exchanger 4, and the ammonia vapor is liquefied into liquid ammonia; when the pressure gauge 11 detects that the pressure of the ammonia vapor in the ammonia fuel tank 1 has decreased to the predetermined pressure value in the ammonia fuel tank 1, the compressor 3 is closed and the ammonia vapor valve 92 is closed.
Further, as shown in fig. 1, in the present embodiment, a check valve 93 is provided on a pipe between the outlet of the compressor 3 and the hot fluid inlet 43 of the heat exchanger 4, thereby preventing backflow of the ammonia vapor or the generated liquid ammonia.
Further, as shown in fig. 1, in the present embodiment, a pressure increasing unit 51 is disposed on a pipeline between the cold fluid outlet 42 of the heat exchanger 4 and the ammonia fuel main unit 5, and the pressure increasing unit 51 is configured to increase the pressure of the liquid ammonia output by the heat exchanger 4, so that the pressure of the liquid ammonia meets the supply pressure of the ammonia fuel main unit 5. A temperature adjusting unit 52 is arranged on a pipeline between the cold fluid outlet 42 of the heat exchanger 4 and the ammonia fuel host 5, and the temperature adjusting unit 52 is used for adjusting the temperature of the liquid ammonia output by the heat exchanger 4, so that the temperature of the liquid ammonia meets the supply temperature of the ammonia fuel host 5.
Further, as shown in fig. 1, in the present embodiment, a liquid ammonia valve 94 is further disposed on a pipeline between the outlet of the low pressure pump 2 and the cold fluid inlet 41 of the heat exchanger 4.
The embodiment of the invention also provides an ammonia fuel power ship, which comprises the above-mentioned system for liquefying and recovering the ammonia vapor of the ship.
The work flow of the ammonia vapor liquefaction recovery system for the ship in the embodiment is as follows:
1. under the operation condition of the ammonia fuel host 5, the liquid ammonia valve 94 is opened, the low-pressure pump 2 is started, the low-pressure pump 2 pressurizes the liquid ammonia in the ammonia fuel storage tank 1 and pumps the liquid ammonia to the cold fluid inlet 41 of the heat exchanger 4 along the pipeline, the liquid ammonia flows through the cold fluid outlet 42 of the heat exchanger 4 and is discharged and enters the main supply pipeline, and the liquid ammonia is pressurized by the pressurizing unit 51, heated by the temperature regulating unit 52 and then supplied to the ammonia fuel host 5 for use.
2. In the process of liquid supply of the low-pressure pump 2, when the pressure gauge 11 detects that the pressure of ammonia vapor in the ammonia fuel storage tank 1 reaches the upper pressure-bearing limit of the ammonia fuel storage tank 1, the ammonia vapor valve 92 is opened, the compressor 3 is started, and the compressor 3 compresses the ammonia vapor to the outlet pressure of the low-pressure pump 2 and enters the heat exchanger 4 from the hot fluid inlet 43 of the heat exchanger 4 along a pipeline. In the heat exchanger 4, the ammonia vapor is cooled by the liquid ammonia as a hot fluid to a temperature below the saturated vapor temperature corresponding to the pressure of the ammonia vapor, i.e., the ammonia vapor is cooled to liquid ammonia (subcooled liquid) and discharged from a hot fluid outlet 44 of the heat exchanger 4, and then enters a main supply pipeline to be pressurized by a pressurizing unit 51, and the temperature of the temperature regulating unit 52 is raised to be supplied to the ammonia fuel host 5 for use.
3. When the pressure gauge 11 detects that the pressure of the ammonia vapor in the ammonia fuel tank 1 has decreased to the predetermined pressure value in the ammonia fuel tank 1, the compressor 3 is closed and the ammonia vapor valve 92 is closed.
According to the liquefied ammonia vapor recovery system for the ship, provided by the embodiment of the invention, aiming at the problem of ammonia vapor treatment in the running process of an ammonia fuel power ship, by arranging the compressor 3 and the heat exchanger 4, firstly, the compressor 3 is utilized to pressurize the ammonia vapor generated in the ammonia fuel storage tank 1, and then, cold energy in the liquid ammonia fuel supply process is utilized to exchange heat with the ammonia vapor in the heat exchanger 4, so that the ammonia vapor is subjected to re-liquefaction treatment, and the liquefied ammonia vapor can be supplied to the ammonia fuel host 5 for combustion (as described in the second embodiment, the liquefied ammonia vapor can also be throttled, cooled and depressurized and then returned to the ammonia fuel storage tank 1), so that the ammonia vapor is recycled, and the pressure in the ammonia fuel storage tank 1 is reduced. This boats and ships ammonia vapor liquefaction recovery system is through to ammonia vapor pressure boost, utilize the cold energy of liquid ammonia fuel supply process to carry out reliquefaction to ammonia vapor to open according to 1 pressure size regulation reliquefaction system of ammonia fuel storage tank and stop, not only the flow is succinct, occupation space is little, can adapt to the requirement of the installation of boats and ships space compactness, and economical and practical, this system is under the prerequisite that accords with the scientific principle, through reasonable design, make boats and ships avoid the potential safety hazard of storage tank superpressure, the system performance is more reliable.
Second embodiment
As shown in fig. 2, a liquefaction recovery system for ship ammonia vapor according to a second embodiment of the present invention is basically the same as the first embodiment, except that: the hot fluid outlet 44 of the heat exchanger 4 is communicated with the ammonia fuel tank 1, so that after ammonia vapor is condensed, the ammonia vapor is throttled and depressurized by the throttle valve 91 to the tank pressure, the temperature of the ammonia vapor is reduced to the saturation temperature under the pressure, and the ammonia vapor returns to the ammonia fuel tank 1 in a gas-liquid two-phase state.
Specifically, in the present embodiment, the marine ammonia vapor liquefaction recovery system further includes a return line 7, one end of the return line 7 is communicated with the hot fluid outlet 44 of the heat exchanger 4, and the other end of the return line 7 is communicated with the ammonia fuel storage tank 1.
Further, as shown in fig. 2, in the present embodiment, a throttle valve 91 is provided in the return line 7, and the throttle valve 91 is configured to throttle the liquid ammonia formed after condensation, so that the pressure thereof is reduced to the pressure of the ammonia fuel tank 1, and the temperature thereof is reduced to the saturation temperature thereof.
The work flow of the ammonia vapor liquefaction and recovery system for the ship in the embodiment is as follows:
1. under the operation condition of the ammonia fuel host 5, the liquid ammonia valve 94 is opened, the low-pressure pump 2 is started, the low-pressure pump 2 pressurizes the liquid ammonia in the ammonia fuel storage tank 1 and pumps the liquid ammonia to the cold fluid inlet 41 of the heat exchanger 4 along the pipeline, the liquid ammonia flows through the cold fluid outlet 42 of the heat exchanger 4 and is discharged and enters the main supply pipeline, and the liquid ammonia is pressurized by the pressurizing unit 51, heated by the temperature regulating unit 52 and then supplied to the ammonia fuel host 5 for use.
2. In the process of supplying liquid by the low-pressure pump 2, when the pressure gauge 11 detects that the pressure of ammonia vapor in the ammonia fuel storage tank 1 reaches the upper pressure-bearing limit of the ammonia fuel storage tank 1, the ammonia vapor valve 92 is opened, the compressor 3 is started, and the compressor 3 compresses the ammonia vapor to the outlet pressure of the low-pressure pump 2 and enters the heat exchanger 4 from the hot fluid inlet 43 of the heat exchanger 4 along a pipeline. In the heat exchanger 4, the ammonia vapor is cooled by the liquid ammonia as a hot fluid to a temperature below the saturated vapor temperature corresponding to the pressure thereof, i.e., the ammonia vapor is cooled to liquid ammonia (supercooled liquid) and discharged from the hot fluid outlet 44 of the heat exchanger 4, and then is depressurized by the throttle valve 91 to the pressure of the ammonia fuel tank 1, and the temperature is lowered to the saturation temperature at that pressure, and is returned to the ammonia fuel tank 1 in a gas-liquid two-phase state.
3. When the pressure gauge 11 detects that the pressure of the ammonia vapor in the ammonia fuel tank 1 has decreased to a predetermined value, the compressor 3 is closed and the ammonia vapor valve 92 is closed.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A ship ammonia vapor liquefaction recovery system is characterized by comprising an ammonia fuel storage tank (1), a low-pressure pump (2), a compressor (3), a heat exchanger (4) and an ammonia fuel host (5); the low-pressure pump (2) is arranged at the bottom in the ammonia fuel storage tank (1), the outlet of the low-pressure pump (2) is communicated with the cold fluid inlet (41) of the heat exchanger (4), and the cold fluid outlet (42) of the heat exchanger (4) is communicated with the ammonia fuel host (5); the inlet of the compressor (3) is communicated with the top of the ammonia fuel storage tank (1), the outlet of the compressor (3) is communicated with the hot fluid inlet (43) of the heat exchanger (4), and the hot fluid outlet (44) of the heat exchanger (4) is communicated with the ammonia fuel storage tank (1) or the ammonia fuel host (5).
2. The marine ammonia vapor liquefaction recovery system of claim 1 further comprising a connecting line (6), one end of the connecting line (6) being in communication with the hot fluid outlet (44) of the heat exchanger (4), the other end of the connecting line (6) being connected to a line between the cold fluid outlet (42) of the heat exchanger (4) and the ammonia fuel host (5).
3. The marine ammonia vapor liquefaction recovery system of claim 1 further comprising a return line (7), one end of the return line (7) being in communication with a hot fluid outlet (44) of the heat exchanger (4), the other end of the return line (7) being in communication with the ammonia fuel storage tank (1).
4. The marine ammonia vapor liquefaction recovery system of claim 3, characterized in that a throttle valve (91) is provided on said return line (7).
5. The marine ammonia vapor liquefaction recovery system of claim 1 characterized in that an ammonia vapor valve (92) is provided on the conduit between the inlet of said compressor (3) and said ammonia fuel storage tank (1).
6. The marine ammonia vapor liquefaction recovery system of claim 5, characterized in that a pressure gauge (11) is provided on said ammonia fuel storage tank (1), said pressure gauge (11) being in signal connection with both said ammonia vapor valve (92) and said compressor (3).
7. The marine ammonia vapor liquefaction recovery system of claim 1 characterized in that a check valve (93) is provided in the conduit between the outlet of the compressor (3) and the hot fluid inlet (43) of the heat exchanger (4).
8. The marine ammonia vapor liquefaction recovery system according to claim 1, characterized in that a pressure boosting unit (51) is arranged on a pipeline between the cold fluid outlet (42) of the heat exchanger (4) and the ammonia fuel main machine (5), and the pressure boosting unit (51) is used for boosting the liquid ammonia output by the heat exchanger (4).
9. The marine ammonia vapor liquefaction recovery system of claim 1, characterized in that a temperature regulation unit (52) is arranged on a pipeline between the cold fluid outlet (42) of the heat exchanger (4) and the ammonia fuel main machine (5), and the temperature regulation unit (52) is used for regulating the temperature of the liquid ammonia output by the heat exchanger (4).
10. An ammonia-fueled marine vessel comprising a marine ammonia vapor liquefaction recovery system according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210700247.9A CN114933004A (en) | 2022-06-20 | 2022-06-20 | Ship ammonia vapor liquefaction recovery system and ammonia fuel power ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210700247.9A CN114933004A (en) | 2022-06-20 | 2022-06-20 | Ship ammonia vapor liquefaction recovery system and ammonia fuel power ship |
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| CN114933004A true CN114933004A (en) | 2022-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210700247.9A Pending CN114933004A (en) | 2022-06-20 | 2022-06-20 | Ship ammonia vapor liquefaction recovery system and ammonia fuel power ship |
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| CN (1) | CN114933004A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4269779A1 (en) * | 2020-12-28 | 2023-11-01 | Dalian Shipbuilding Industry Co. Ltd | Marine liquid ammonia fuel supply and fuel recycling system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111392019A (en) * | 2020-03-27 | 2020-07-10 | 大连船舶重工集团有限公司 | Clean ship power system who discharges |
| CN211924353U (en) * | 2020-03-27 | 2020-11-13 | 大连船舶重工集团有限公司 | Marine liquid ammonia fuel feed system |
| CN112696289A (en) * | 2020-12-28 | 2021-04-23 | 大连船舶重工集团有限公司 | Marine liquid ammonia fuel supply and fuel recycle system |
| CN214092075U (en) * | 2021-01-14 | 2021-08-31 | 国鸿液化气机械工程（大连）有限公司 | Ammonia fuel tank ship power gas supply system |
| CN214533292U (en) * | 2020-12-28 | 2021-10-29 | 大连船舶重工集团有限公司 | Marine liquid ammonia fuel supply and fuel recycle system |
| KR20210137319A (en) * | 2020-05-08 | 2021-11-17 | 삼성중공업 주식회사 | Ammonia fuel supply apparatus |
| KR20210137344A (en) * | 2020-05-08 | 2021-11-17 | 삼성중공업 주식회사 | Ammonia fuel supply apparatus |
| CN215205264U (en) * | 2021-02-05 | 2021-12-17 | 大连船舶重工集团有限公司 | System for reducing ammonia gas evaporated in liquid ammonia storage cabin |
| CN114382572A (en) * | 2022-01-29 | 2022-04-22 | 青岛双瑞海洋环境工程股份有限公司 | Marine ammonia gas grading treatment system and ammonia fuel power ship |
| KR102392826B1 (en) * | 2021-09-15 | 2022-05-02 | 선보공업주식회사 | Ship fuel supply system and method performing thereof |
-
2022
- 2022-06-20 CN CN202210700247.9A patent/CN114933004A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111392019A (en) * | 2020-03-27 | 2020-07-10 | 大连船舶重工集团有限公司 | Clean ship power system who discharges |
| CN211924353U (en) * | 2020-03-27 | 2020-11-13 | 大连船舶重工集团有限公司 | Marine liquid ammonia fuel feed system |
| KR20210137319A (en) * | 2020-05-08 | 2021-11-17 | 삼성중공업 주식회사 | Ammonia fuel supply apparatus |
| KR20210137344A (en) * | 2020-05-08 | 2021-11-17 | 삼성중공업 주식회사 | Ammonia fuel supply apparatus |
| CN112696289A (en) * | 2020-12-28 | 2021-04-23 | 大连船舶重工集团有限公司 | Marine liquid ammonia fuel supply and fuel recycle system |
| CN214533292U (en) * | 2020-12-28 | 2021-10-29 | 大连船舶重工集团有限公司 | Marine liquid ammonia fuel supply and fuel recycle system |
| CN214092075U (en) * | 2021-01-14 | 2021-08-31 | 国鸿液化气机械工程（大连）有限公司 | Ammonia fuel tank ship power gas supply system |
| CN215205264U (en) * | 2021-02-05 | 2021-12-17 | 大连船舶重工集团有限公司 | System for reducing ammonia gas evaporated in liquid ammonia storage cabin |
| KR102392826B1 (en) * | 2021-09-15 | 2022-05-02 | 선보공업주식회사 | Ship fuel supply system and method performing thereof |
| CN114382572A (en) * | 2022-01-29 | 2022-04-22 | 青岛双瑞海洋环境工程股份有限公司 | Marine ammonia gas grading treatment system and ammonia fuel power ship |
Non-Patent Citations (1)
| Title |
|---|
| 姚行健等: "《空气调节用制冷技术》", 中国建筑工业出版社, pages: 142 - 49 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4269779A1 (en) * | 2020-12-28 | 2023-11-01 | Dalian Shipbuilding Industry Co. Ltd | Marine liquid ammonia fuel supply and fuel recycling system |
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Application publication date: 20220823 |