CN220415552U - Marine methanol fuel supply system with in-tank condensation - Google Patents
Marine methanol fuel supply system with in-tank condensation Download PDFInfo
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- CN220415552U CN220415552U CN202322020026.XU CN202322020026U CN220415552U CN 220415552 U CN220415552 U CN 220415552U CN 202322020026 U CN202322020026 U CN 202322020026U CN 220415552 U CN220415552 U CN 220415552U
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- Prior art keywords
- methanol
- tank
- heat exchange
- storage tank
- methanol fuel
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 278
- 239000000446 fuel Substances 0.000 title claims abstract description 55
- 238000009833 condensation Methods 0.000 title claims abstract description 27
- 230000005494 condensation Effects 0.000 title claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 239000000523 sample Substances 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 abstract description 7
- 230000008020 evaporation Effects 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 7
- 238000010926 purge Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 239000013505 freshwater Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
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- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The utility model discloses a marine methanol fuel supply system with in-tank condensation, which comprises a storage tank and a first heat exchange tube, wherein the storage tank is filled with methanol fuel, a gap is formed between the liquid level of the methanol fuel and the top of the storage tank to form a condensation area, a heat exchange section of the first heat exchange tube is arranged in the condensation area and extends along the axial direction of the storage tank, and a first heat exchange medium flows in the first heat exchange tube. According to the utility model, the heat exchange is carried out on the methanol evaporation gas in the storage tank, so that the recondensing of the methanol evaporation gas is realized, and the emission and waste of the methanol evaporation gas can be obviously reduced especially in summer.
Description
Technical Field
The utility model belongs to the technical field of ship shipping, and particularly relates to a tank-condensed methanol fuel supply system for a ship.
Background
At present, along with the development of clean energy, methanol has the advantages of cleanness, environmental protection, strong availability and the like, methanol is gradually adopted as ship fuel in the field of ship shipping, most of the current methanol fuel supply systems are independently provided with fuel preparation rooms, a storage tank is often placed on a deck, methanol fuel liquid in the tank is extremely easy to be influenced by environmental temperature, volatile gas is easy to generate, and particularly the evaporated gas is further increased under the condition of high temperature in summer, so that the emission of the methanol fuel and the waste of the fuel can be caused.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides a marine methanol fuel supply system for tank condensation, which is used for exchanging heat of methanol evaporation gas in a storage tank to realize recondensing of the methanol evaporation gas, and particularly can obviously reduce emission and waste of the methanol evaporation gas in summer.
The aim of the utility model is achieved by the following technical scheme:
the utility model provides a marine methanol fuel feed system of in-tank condensation, includes storage tank and first heat exchange tube, the storage tank intussuseption is filled with methanol fuel, methanol fuel's liquid level with have the clearance between the storage tank top to form the condensation region, the heat exchange section setting of first heat exchange tube is in the condensation region and follow the axial direction of storage tank extends, first heat exchange medium circulates in the first heat exchange tube.
In one embodiment, still be provided with pressure sensor and temperature sensor in the storage tank, pressure sensor with temperature sensor's probe all is located in the condensation area, first heat exchange tube is located the part outside the storage tank is provided with pneumatic valve, pneumatic valve respectively with pressure sensor and temperature sensor electricity is connected, through this embodiment, opens or closes pneumatic valve according to temperature and pressure in the storage tank automatically promptly, need not to carry out the condensation operation continuously in the jar, the energy saving.
In one embodiment, the bottom of the storage tank is connected with a methanol supply pump, the methanol supply pump is respectively connected with the methanol supply pump and the engine through a supply pipeline, the flow rate of the methanol supply pump is larger than the fuel demand of the engine, the methanol fuel in the storage tank is supplied to the engine by the methanol supply pump, the methanol supply pump adopts a constant delivery pump, and the methanol fuel is supplied to the engine by maintaining sufficient pressure and flow rate.
In one embodiment, a methanol heat exchanger is further arranged on the supply pipeline between the methanol supply pump and the engine, a second heat exchange pipe is arranged in the methanol heat exchanger, a heat exchange section of the second heat exchange pipe extends along the axial direction of the methanol heat exchanger, and a second heat exchange medium circulates in the second heat exchange pipe.
In one embodiment, the outlet end of the methanol heat exchanger is further provided with a duplex filter.
In one embodiment, a relief valve is also provided in the supply line between the duplex filter and the engine, the relief valve being in communication with the reservoir.
In one embodiment, a proportional valve is also provided on the supply line between the duplex filter and the engine, the proportional valve being in communication with the reservoir.
In one embodiment, a plurality of nitrogen sweep ports are provided on the storage tank and the supply line.
In one embodiment, a bleed collection chamber is also connected to the bottom of the tank, with a bleed pump between the tank and the bleed collection chamber.
The utility model has the beneficial effects that:
the methanol evaporation gas is condensed in the storage tank, so that emission and fuel waste are reduced, the first pneumatic valve is automatically opened or closed according to the temperature and the pressure in the storage tank, the condensation operation is not required to be continuously performed in the tank, energy is saved, and the amount of methanol fuel entering the engine can be regulated under the condition that the flow and the lift of the supply pump are not changed.
Drawings
The utility model will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings.
Wherein:
FIG. 1 shows a schematic structural diagram of one embodiment of the present utility model;
in the drawings, like parts are designated with like reference numerals. The figures are not to scale.
Reference numerals:
1-storage tank, 2-methanol fuel, 3-condensation area, 4-first heat exchange tube, 5-methanol heat exchanger, 6-second heat exchange tube.
Detailed Description
The utility model will be further described with reference to the accompanying drawings.
The utility model provides a tank condensed marine methanol fuel supply system, which is shown in figure 1, and comprises a storage tank 1 and a first heat exchange tube 4, wherein the storage tank 1 is filled with methanol fuel 2, a gap is formed between the liquid level of the methanol fuel 2 and the top of the storage tank 1 to form a condensation area 3, a heat exchange section of the first heat exchange tube 4 is arranged in the condensation area 3 and extends along the axial direction of the storage tank 1, and a first heat exchange medium flows in the first heat exchange tube 4;
it should be noted that, in shipping, the storage tank 1 of the methanol fuel supply system is often placed on a deck, which is easily affected by environmental temperature, for example, in a high-temperature environment in summer, the methanol fuel 2 therein is easy to generate volatile gas, which leads to emission and fuel waste of the methanol fuel 2, a condensation area 3 is left in the storage tank 1, and a first heat exchange tube 4 is arranged in the condensation area 3, so as to realize condensation of the methanol vapor, and the methanol vapor is condensed back into the storage tank 1, thereby reducing emission and waste;
in one embodiment, as shown in fig. 1, a pressure sensor PT01 and a temperature sensor TT01 are further arranged in the storage tank 1, probes of the pressure sensor PT01 and the temperature sensor TT01 are both positioned in the condensation area 3, a pneumatic valve AV01 is arranged at a part of the first heat exchange tube 4 positioned outside the storage tank 1, and the pneumatic valve AV01 is electrically connected with the pressure sensor PT01 and the temperature sensor TT01 respectively, namely, the pneumatic valve AV01 is automatically opened or closed according to the temperature and the pressure in the storage tank 1, so that the condensation operation is not required to be continuously performed in the tank, and the energy is saved;
in one embodiment, as shown in fig. 1, a methanol supply pump SP01 is connected to the bottom of the storage tank 1, the methanol supply pump SP01 is connected to the storage tank 1 and the engine through a supply pipeline, the flow rate of the methanol supply pump SP01 is larger than the fuel demand of the engine, namely, the methanol fuel 2 in the storage tank 1 is supplied to the engine by using the methanol supply pump SP01, and the methanol supply pump SP01 adopts a constant delivery pump, so that the methanol fuel 2 is supplied to the engine while maintaining sufficient pressure and flow rate;
further, a methanol heat exchanger 5 is further arranged on a supply pipeline between the methanol supply pump SP01 and the engine, a second heat exchange tube 6 is arranged in the methanol heat exchanger 5, a heat exchange section of the second heat exchange tube 6 extends along the axial direction of the methanol heat exchanger 5, and a second heat exchange medium flows in the second heat exchange tube 6, namely before the methanol supply pump SP01 supplies the methanol fuel 2 to the engine, the temperature of the methanol fuel 2 is regulated by the methanol heat exchanger 5 so as to meet the use condition of the engine on the fuel;
in one embodiment, as shown in fig. 1, the outlet end of the methanol heat exchanger 5 is further provided with a duplex filter FA01, wherein the duplex filter FA01 is composed of two mutually standby fine filters, and is provided with a switching valve, so that when one filter is blocked, the filter can be switched to the other filter for filtering, and the current filter can be cleaned;
in one embodiment, a relief valve PRV01 is further disposed on a supply line between the duplex filter FA01 and the engine, the relief valve PRV01 is in communication with the storage tank 1, that is, the relief valve PRV01 can adjust the amount of the methanol fuel 2 supplied by the methanol supply pump SP01 to the amount required by the engine, and the excess methanol fuel 2 overflows into the storage tank 1, so that the amount of the methanol fuel entering the engine can be adjusted by using the relief valve PRV01 according to the requirement of the engine on the premise of not changing the flow and the lift of the methanol supply pump SP 01;
in one embodiment, a proportional valve is further arranged on a supply pipeline between the duplex filter FA01 and the engine, the proportional valve is communicated with the storage tank 1, namely, under the condition that the flow and the lift of the methanol supply pump SP01 are not changed, the proportional valve can be used for adjusting the amount of methanol fuel entering the engine, the back pressure of the pump is detected through a back-end pressure transmitter, the opening degree of the proportional valve is adjusted through the height of the pressure value, and the overflow of the methanol fuel is realized, so that the amount of the methanol fuel entering the engine is adjusted;
in one embodiment, as shown in fig. 1, a plurality of nitrogen scavenging mouths are arranged on the storage tank 1 and the supply pipeline, including N01, N02, N03 and N04, and are used for inerting the system before loading the methanol fuel 2, exhausting air and exhausting the methanol fuel 2 in the pipeline when the system is stopped so as to prevent dangerous accidents;
further, the methanol in the nitrogen purging discharge pipeline is controlled by nitrogen, pneumatic stop valves AV10, AV11, AV12 and AV13 and a discharge pump SP02 together, nitrogen is introduced during purging, the corresponding pneumatic stop valve is opened, in order to prevent incomplete purging, the discharge pump is started for sucking, and methanol liquid in the pipeline is collected by a discharge collection cabin T01 after purging;
in one embodiment, fresh water flows through the first heat exchange tube 4 and the second heat exchange tube 6, and the fresh water is respectively communicated with corresponding external constant temperature devices, and constant temperature heat exchange media are introduced into the first heat exchange tube 4 and the second heat exchange tube 6;
in the description of the present utility model, it should be understood that the terms "upper," "lower," "bottom," "top," "front," "rear," "inner," "outer," "left," "right," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
Although the utility model herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present utility model. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present utility model as defined by the appended claims. It should be understood that the different dependent claims and the features described herein may be combined in ways other than as described in the original claims. It is also to be understood that features described in connection with separate embodiments may be used in other described embodiments.
Claims (9)
1. The marine methanol fuel supply system is characterized by comprising a storage tank and a first heat exchange tube, wherein the storage tank is filled with methanol fuel, a gap is formed between the liquid level of the methanol fuel and the top of the storage tank to form a condensation area, a heat exchange section of the first heat exchange tube is arranged in the condensation area and extends along the axial direction of the storage tank, and a first heat exchange medium flows in the first heat exchange tube.
2. The tank-condensation marine methanol fuel supply system according to claim 1, wherein a pressure sensor and a temperature sensor are further arranged in the storage tank, probes of the pressure sensor and the temperature sensor are both located in the condensation area, a pneumatic valve is arranged at a portion of the first heat exchange tube located outside the storage tank, and the pneumatic valve is electrically connected with the pressure sensor and the temperature sensor respectively.
3. The tank-condensation marine methanol fuel supply system of claim 1, wherein the bottom of the storage tank is connected with a methanol supply pump, the methanol supply pump is respectively connected with the storage tank and the engine through a supply pipeline, and the flow rate of the methanol supply pump is larger than the fuel demand of the engine.
4. A tank condensation marine methanol fuel supply system according to claim 3, wherein a methanol heat exchanger is further arranged on the supply pipeline between the methanol supply pump and the engine, a second heat exchange tube is arranged in the methanol heat exchanger, a heat exchange section of the second heat exchange tube extends along the axial direction of the methanol heat exchanger, and a second heat exchange medium flows in the second heat exchange tube.
5. The in-tank condensed marine methanol fuel supply system of claim 4 wherein the methanol heat exchanger outlet end is further provided with a duplex filter.
6. A tank condensed marine methanol fuel supply system according to claim 5, wherein a relief valve is further provided in the supply line between the duplex filter and the engine, the relief valve being in communication with the tank.
7. The in-tank condensed marine methanol fuel supply system of claim 5 wherein a proportional valve is further provided in the supply line between the duplex filter and the engine, the proportional valve being in communication with the storage tank.
8. A tank condensed marine methanol fuel supply system as claimed in claim 4 wherein a plurality of nitrogen sweep ports are provided on the tank and supply line.
9. A tank condensation marine methanol fuel supply system as in claim 3 wherein the bottom of the tank is further connected with a bleed collection tank, and a bleed pump is provided between the tank and the bleed collection tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322020026.XU CN220415552U (en) | 2023-07-28 | 2023-07-28 | Marine methanol fuel supply system with in-tank condensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322020026.XU CN220415552U (en) | 2023-07-28 | 2023-07-28 | Marine methanol fuel supply system with in-tank condensation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220415552U true CN220415552U (en) | 2024-01-30 |
Family
ID=89648314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322020026.XU Active CN220415552U (en) | 2023-07-28 | 2023-07-28 | Marine methanol fuel supply system with in-tank condensation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220415552U (en) |
-
2023
- 2023-07-28 CN CN202322020026.XU patent/CN220415552U/en active Active
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