CN220415553U - Marine methanol fuel supply system with heat exchange in tank - Google Patents
Marine methanol fuel supply system with heat exchange in tank Download PDFInfo
- Publication number
- CN220415553U CN220415553U CN202322027621.6U CN202322027621U CN220415553U CN 220415553 U CN220415553 U CN 220415553U CN 202322027621 U CN202322027621 U CN 202322027621U CN 220415553 U CN220415553 U CN 220415553U
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- China
- Prior art keywords
- heat exchange
- tank
- storage tank
- methanol fuel
- methanol
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 266
- 239000000446 fuel Substances 0.000 title claims abstract description 67
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 238000009833 condensation Methods 0.000 claims description 9
- 230000005494 condensation Effects 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 4
- 239000000523 sample Substances 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 description 4
- 238000010926 purge Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness 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
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000007789 gas Substances 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
Landscapes
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The utility model discloses a marine methanol fuel supply system with heat exchange in a tank, which comprises a storage tank and a first heat exchange pipe, wherein methanol fuel is stored in the storage tank, a heat exchange section of the first heat exchange pipe is arranged in the storage tank and immersed in the methanol fuel, the heat exchange section of the first heat exchange pipe extends along the axial direction of the storage tank, a first heat exchange medium flows in the first heat exchange pipe, a first temperature sensor immersed in the methanol fuel is also arranged in the storage tank, a first pneumatic valve is arranged at the part of the first heat exchange pipe positioned outside the storage tank, and the first temperature sensor is electrically connected with the first pneumatic valve. The utility model exchanges heat for the methanol fuel in the storage tank, meets the fuel temperature required by the engine, and simultaneously reduces the volume required by heat exchange equipment.
Description
Technical Field
The utility model belongs to the technical field of ship shipping, and particularly relates to a marine methanol fuel supply system capable of exchanging heat in a tank.
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, a current methanol fuel supply system is mainly and independently provided with a fuel preparation room for pressurizing and exchanging heat to meet the use requirement of an engine, heat exchange equipment and the like occupy larger space, a methanol storage tank is often placed on the deck, methanol fuel liquid in the tank is easily influenced by environmental temperature, and the fluidity of the methanol is poor and unstable supply can be caused when the temperature is low in winter; and when the temperature is high in summer, the evaporation of the methanol is aggravated, and the emission of the methanol fuel and the waste of the fuel are 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 heat exchange in a tank, which is used for heat exchange of methanol fuel in a storage tank, so that the fuel temperature required by an engine is met, and meanwhile, the volume required by heat exchange equipment is reduced.
The aim of the utility model is achieved by the following technical scheme:
the utility model provides a marine methanol fuel supply system of heat transfer in jar, includes storage tank and first heat exchange tube, the storage tank is interior to store methanol fuel, the heat exchange section setting of first heat exchange tube is in the storage tank and immerse in the methanol fuel, the heat exchange section of first heat exchange tube is followed the axial direction of storage tank extends, it has first heat transfer medium to circulate in the first heat exchange tube.
In one embodiment, a first temperature sensor immersed in the methanol fuel is further arranged in the storage tank, a first pneumatic valve is arranged at the part, located outside the storage tank, of the first heat exchange tube, and the first temperature sensor is electrically connected with the first pneumatic valve.
In one embodiment, the device further comprises a second heat exchange tube, wherein the heat exchange section of the second heat exchange tube is arranged in the storage tank and extends along the axial direction of the storage tank, a gap exists between the liquid level of the methanol fuel and the top of the storage tank to form a condensation area, the heat exchange section of the second heat exchange tube is arranged in the condensation area, and a second heat exchange medium flows in the second heat exchange tube.
In one embodiment, a pressure sensor and a second temperature sensor are further arranged in the storage tank, the pressure sensor and the probe of the second temperature sensor are both located in the condensation area, a second pneumatic valve is arranged at the part, located outside the storage tank, of the second heat exchange tube, and the second pneumatic valve is electrically connected with the pressure sensor and the second temperature sensor respectively.
In one embodiment, a methanol supply pump is connected to the bottom of the storage tank, and is connected to the methanol supply pump and the engine through supply pipes, respectively, and the flow rate of the methanol supply pump is greater than the fuel demand of the engine.
In one embodiment, the outlet end of the methanol supply pump is further provided with a duplex filter.
In one embodiment, a relief valve is further provided on the supply line between the methanol supply pump and the engine, the relief valve being in communication with the storage tank.
In one embodiment, a proportional valve is further arranged on the supply pipeline between the methanol supply pump and the engine, and an overflow port of the proportional valve is communicated with the storage tank.
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 fuel is subjected to heat exchange in the storage tank, so that the fuel temperature required by the engine is met, and meanwhile, the volume required by heat exchange equipment is reduced; meanwhile, the recondensing of the methanol vapor in the storage tank reduces emission and fuel waste, and can adjust the amount of the methanol fuel entering the engine under the condition of not changing the flow and the lift of the supply pump.
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-first heat exchange tube, 4-second heat exchange tube and 5-methanol evaporation gas.
Detailed Description
The utility model will be further described with reference to the accompanying drawings.
The utility model provides a marine methanol fuel 2 supply system for tank heat exchange, which comprises a storage tank 1 and a first heat exchange pipe 3, wherein the storage tank 1 stores methanol fuel 2, a heat exchange section of the first heat exchange pipe 3 is arranged in the storage tank 1 and immersed in the methanol fuel 2, the heat exchange section of the first heat exchange pipe 3 extends along the axial direction of the storage tank 1, and a first heat exchange medium flows in the first heat exchange pipe 3.
It should be noted that, most of the storage tanks 1 and the heat exchange systems of the current marine methanol fuel 2 supply systems are separately and independently arranged, while the storage tanks 1 are arranged on the deck, the methanol fuel 2 liquid in the tanks is extremely susceptible to the influence of the environmental temperature, in this embodiment, the heat exchange sections of the first heat exchange tubes 3 are arranged in the storage tanks 1 and immersed in the methanol fuel 2, so as to directly heat the methanol fuel 2 as required, thereby saving the space and reducing the situation that the fluidity is deteriorated or waste occurs due to the influence of the environmental temperature;
in one embodiment, as shown in fig. 1, a first temperature sensor TT01 immersed in the methanol fuel 2 is further arranged in the storage tank 1, a first pneumatic valve AV01 is arranged at a portion, located outside the storage tank 1, of the first heat exchange tube 3, the first temperature sensor TT01 is electrically connected with the first pneumatic valve AV01, namely, the first pneumatic valve AV01 is automatically opened or closed and is regulated by a temperature feedback value of the temperature sensor TT01, the temperature value of the methanol fuel 2 detected and fed back by the temperature sensor is suitable for an engine, the pneumatic stop valve AV01 is driven to be closed, otherwise, the first pneumatic valve AV01 is opened, and the energy saving effect is achieved;
in one embodiment, as shown in fig. 1, the heat exchange device further comprises a second heat exchange tube 4, wherein the heat exchange section of the second heat exchange tube 4 is arranged in the storage tank 1 and extends along the axial direction of the storage tank 1, a gap exists between the liquid level of the methanol fuel 2 and the top of the storage tank 1 to form a condensation area, the heat exchange section of the second heat exchange tube 4 is arranged in the condensation area, and a second heat exchange medium flows in the second heat exchange tube 4;
the second heat exchange tube 4 can exchange heat with the methanol vapor 5 in the storage tank 1, and condensate and recycle the methanol vapor, so that waste in high-temperature environment in summer is prevented;
specifically, heat exchange media such as fresh water are introduced into the first heat exchange tube 3 and the second heat exchange tube 4, and the temperature of the heat exchange media is controlled to be equal to the temperature of the methanol fuel 2 required by the engine, namely, the methanol fuel 2 in the storage tank 1 is kept at a proper temperature for supplying to the engine;
in one embodiment, as shown in fig. 1, a pressure sensor PT01 and a second temperature sensor TT02 are further arranged in the storage tank 1, probes of the pressure sensor PT01 and the second temperature sensor TT02 are all located in a condensation area, a second pneumatic valve AV02 is arranged at a part of the second heat exchange tube 4 located outside the storage tank 1, the second pneumatic valve AV02 is electrically connected with the pressure sensor PT01 and the second temperature sensor TT02 respectively, the pressure sensor PT01 detects the pressure in the storage tank 1, safety accidents are avoided, the second pneumatic valve AV02 is automatically opened or closed, and the temperature feedback value of the temperature sensor TT02 and the pressure feedback value of the pressure sensor PT01 are adjusted, namely continuous heat exchange is not needed, and energy consumption is reduced;
in one embodiment, as shown in fig. 1, the bottom of the storage tank 1 is connected with a methanol supply pump SP01, the methanol supply pump SP01 is respectively connected with the methanol supply pump 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, a duplex filter FA01 is further arranged at the outlet end of the methanol supply pump SP01, the duplex filter is composed of two mutually standby fine filters and is provided with a switching valve, when one filter is blocked, the filter can be switched to the other filter for filtering, the current filter can be cleaned, the fuel cleanliness of the entering engine is ensured, meanwhile, the methanol supply pump SP01 is used for supplying the methanol fuel 2 to the engine, the methanol supply pump SP01 is set as a constant delivery pump, and the pressure and the flow rate of the supplied methanol fuel 2 are kept larger than the demand of the engine, namely stable energy supply is kept;
further, as shown in fig. 1, a relief valve PRV01 is further disposed on the supply line between the methanol supply pump SP01 and the engine, the relief valve PRV01 is in communication with the storage tank 1, i.e. the relief valve 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, i.e. the amount of the fuel entering the engine can be adjusted by the relief valve PRV01 without changing the flow rate and the lift of the methanol supply pump SP 01;
in one embodiment, a proportional valve is further arranged on the supply pipeline between the methanol supply pump and the engine, and an overflow port of the proportional valve is communicated with the storage tank 1, namely, the fuel quantity entering the engine can be regulated by arranging the proportional valve on the premise of not changing the flow and the lift of the methanol supply pump SP01, and the redundant methanol fuel 2 is returned into the storage tank 1;
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 the nitrogen, the pneumatic stop valves AV10, AV11, AV12 and AV13 and the bleeder pump SP02, the nitrogen is introduced during purging, the corresponding pneumatic stop valve is opened, in order to prevent incomplete purging, the bleeder pump is started for sucking, and the methanol liquid in the pipeline is collected by the bleeder collecting cabin T01 after purging.
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 (10)
1. The marine methanol fuel supply system for tank heat exchange is characterized by comprising a storage tank and a first heat exchange pipe, wherein methanol fuel is stored in the storage tank, a heat exchange section of the first heat exchange pipe is arranged in the storage tank and immersed in the methanol fuel, the heat exchange section of the first heat exchange pipe extends along the axial direction of the storage tank, and a first heat exchange medium is circulated in the first heat exchange pipe.
2. The tank heat exchange marine methanol fuel supply system as in claim 1, wherein a first temperature sensor immersed in the methanol fuel is further disposed in the tank, a first pneumatic valve is disposed at a portion of the first heat exchange tube located outside the tank, and the first temperature sensor is electrically connected to the first pneumatic valve.
3. The tank heat exchange marine methanol fuel supply system as in claim 1 or 2, further comprising a second heat exchange tube, wherein a heat exchange section of the second heat exchange tube is disposed in the storage tank and extends in an axial direction of the storage tank, a gap exists between a liquid surface of the methanol fuel and a top of the storage tank to form a condensation area, the heat exchange section of the second heat exchange tube is disposed in the condensation area, and a second heat exchange medium flows in the second heat exchange tube.
4. A tank heat exchange marine methanol fuel supply system according to claim 3, wherein a pressure sensor and a second temperature sensor are further arranged in the storage tank, probes of the pressure sensor and the second temperature sensor are both located in the condensation area, a second pneumatic valve is arranged at a part of the second heat exchange tube located outside the storage tank, and the second pneumatic valve is electrically connected with the pressure sensor and the second temperature sensor respectively.
5. The marine methanol fuel supply system for heat exchange in a tank according to 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 methanol supply pump and an engine through a supply pipeline, and the flow rate of the methanol supply pump is larger than the fuel demand of the engine.
6. The tank heat exchange marine methanol fuel supply system of claim 5 wherein the outlet end of the methanol supply pump is further provided with a duplex filter.
7. A tank heat exchange marine methanol fuel supply system as in claim 5 or 6 wherein a relief valve is also provided in the supply line between the methanol supply pump and the engine, the relief valve being in communication with the storage tank.
8. The tank heat exchange marine methanol fuel supply system as in claim 5 or 6, wherein a proportional valve is further provided on the supply line between the methanol supply pump and the engine, and wherein the overflow port of the proportional valve is in communication with the storage tank.
9. The tank heat exchange marine methanol fuel supply system of claim 5 wherein the storage tank and the supply line are provided with a plurality of nitrogen sweep ports.
10. The tank heat exchange marine methanol fuel supply system of claim 9 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 |
|---|---|---|---|
| CN202322027621.6U CN220415553U (en) | 2023-07-28 | 2023-07-28 | Marine methanol fuel supply system with heat exchange in tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322027621.6U CN220415553U (en) | 2023-07-28 | 2023-07-28 | Marine methanol fuel supply system with heat exchange in tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220415553U true CN220415553U (en) | 2024-01-30 |
Family
ID=89644317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322027621.6U Active CN220415553U (en) | 2023-07-28 | 2023-07-28 | Marine methanol fuel supply system with heat exchange in tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220415553U (en) |
-
2023
- 2023-07-28 CN CN202322027621.6U patent/CN220415553U/en active Active
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