JP2020012629A - Anti-icing vaporization device - Google Patents

Abstract

To provide an anti-icing vaporization device in which a vaporizer to perform heat exchange between a liquefied fuel gas and seawater prevents icing on a surface of a liquefied fuel gas transport pipe.SOLUTION: A vaporizer 300 includes a transport pipe 303 connecting an inlet part 301, into which a liquefied fuel gas is introduced, with an outlet part 302, from which the vaporized fuel gas is drawn. The vaporizer provides a space in which seawater heat-exchanged with the transport pipe flows. The vaporizer comprises a thermoelectric power generating unit 310 that can generate power by a temperature difference between two fluids. The vaporizer includes a heating unit 320, which is placed on a surface of the liquefied fuel gas inlet part of the transport pipe and prevents, by heating using power generated by the thermoelectric power generating unit, icing of a region of the transport pipe adjacent to the inlet part.SELECTED DRAWING: Figure 11

Description

  The present invention relates to a thermoelectric power generation module, a thermoelectric power generation device including the same, an anti-icing vaporization device, and a vaporized fuel gas liquefaction process device.

  With the tightening of the International Maritime Organization's (IMO) regulations on greenhouse gas and various air pollutant emissions, the shipbuilding and shipping industry has been using clean energy sources instead of using existing fuels, heavy and diesel. In many cases, natural gas is used as fuel gas for ships.

  Natural gas, which is widely used and regarded as an important resource in fuel gas, is based on methane and is usually cooled to about -162 ° C for ease of storage and transportation, It manages and operates by changing its phase to liquefied natural gas, a colorless and transparent cryogenic liquid whose volume has been reduced to 1/600.

  The liquefied natural gas may be stored in a storage tank installed on the hull insulated and transported to a demand destination of the liquefied natural gas, or stored in a fuel tank and supplied to a ship engine as fuel gas.

  In order to use liquefied fuel gas such as liquefied natural gas as a fuel gas for a ship engine or the like, a process of vaporizing and supplying the liquefied fuel gas is required. A vaporizer that vaporizes a liquefied fuel gas using the difference is used. Such a vaporizer moves the liquefied fuel gas through a moving pipe inside the vaporizer and simultaneously supplies seawater to the outside of the moving pipe, so that the liquefied fuel gas is exchanged with the liquefied fuel gas through heat exchange with seawater. The gas can be heated and phase changed to a vaporized fuel gas.

  However, due to the temperature difference between the liquefied fuel gas and the seawater, icing occurs on the surface of the liquefied fuel gas moving pipe adjacent to the inlet of the vaporizer, and heat transfer is not performed smoothly due to the icing. Therefore, there is a problem that the performance of the vaporizer is reduced.

  Further, when the liquefied fuel gas is stored in the storage tank, external heat is continuously transmitted to the inside of the storage tank, and evaporative gas generated by vaporization of the liquefied fuel gas is accumulated in the storage tank. Such evaporative gas can increase the internal pressure of the storage tank and induce deformation and damage of the storage tank. In the course of transporting the liquefied fuel gas, the vibration of the ship causes structural problems of the storage tank and the ship. There is a problem that causes

  This requires a method of effectively processing and utilizing excess vaporized fuel gas or the like that is not supplied to the engine of the ship, among the vaporized gas or the vaporized fuel gas. In addition, there is a need for a method for utilizing energy generated due to a temperature difference between an extremely low temperature liquefied fuel gas and its surroundings in the process of operating the liquefied fuel gas, the evaporative gas or the vaporized fuel gas.

  The present invention provides a thermoelectric power generation module capable of efficiently utilizing energy through the use of a temperature difference between a cryogenic fluid and its surroundings to efficiently use energy, a thermoelectric power generation device including the module, an anti-icing vaporizer, and a vaporizer. A fuel gas liquefaction process apparatus is provided.

  SUMMARY OF THE INVENTION The present invention provides a thermoelectric power generation module capable of reducing power required for a process of compressing an evaporative gas or a vaporized fuel gas and power required for a process of compressing and transferring a liquefied fuel gas, a thermoelectric power generation device including the module, and ice formation. An apparatus for preventing vaporization and an apparatus for liquefying vaporized fuel gas are provided.

  According to one aspect of the present invention, there can be provided a thermoelectric power generation module including a pipe through which a fluid flows, and a thermoelectric power generation unit that surrounds the pipe and generates electric power by a temperature difference between the fluid and outside air.

  The thermoelectric generator includes a first shell that is in contact with an outer peripheral surface of the pipe, a second shell that is separated from the first shell at a predetermined interval, and a plurality of shells that are provided between the first shell and the second shell. A thermoelectric power generation module including a thermoelectric element unit can be provided.

  A thermoelectric power module including an inert gas between the first shell and the second shell may be provided.

  A thermoelectric power generation module may be provided in which the pressure between the first shell and the second shell is the same as the internal pressure of the pipe.

  A compressor for compressing the evaporative gas of the liquefied fuel gas stored in the storage tank, and a thermoelectric generator for generating electric power using a temperature difference between the fluid passing through the compressor and the liquefied fuel gas supplied from the storage tank And a vaporizer for vaporizing the fluid and the liquefied fuel gas passing through the thermoelectric generator and supplying the vaporized gas to the engine.

  A first pipe that provides a passage for the fluid to move to the vaporizer; a first pipe that contacts one surface of the thermoelectric generator; and a passage for the liquefied fuel gas to move to the vaporizer; A thermoelectric generator may be provided further comprising a second pipe in contact with the surface.

  A first pump installed in the second pipe to transfer the liquefied fuel gas by increasing the pressure; and a liquefied fuel flowing out of the first pump installed between the first pump and the vaporizer. A thermoelectric generator may further be provided that further includes a second pump for increasing the pressure of gas and a converter for converting electricity generated by the thermoelectric generator to supply the compressor and the first and second pumps to the compressor. .

  A thermoelectric generator may be provided in which one of the first pipe and the second pipe surrounds at least a part of the other.

  A thermoelectric generator may be provided in which the thermoelectric generator is used as a partition wall between the first pipe and the liquefied fuel gas such that the first pipe does not contact the liquefied fuel gas.

  The vaporizer includes a moving pipe that connects a drawing part into which the fluid and the liquefied fuel gas flow and a drawing part from which the vaporized fuel is drawn, and a thermoelectric generator that provides a space through which seawater that exchanges heat with the moving pipe flows. An apparatus may be provided.

  A moving pipe that connects a drawing section into which the liquefied fuel gas is drawn and a drawing section from which the vaporized fuel gas is drawn, to provide a space through which seawater that exchanges heat with the moving pipe flows to convert the liquefied fuel gas into a vaporized fuel gas; A thermoelectric power generation unit capable of generating power by a temperature difference between the seawater and a fluid containing at least one of the liquefied fuel gas and the vaporized fuel gas moving through the moving pipe; An anti-icing vaporizer is provided that is disposed on a surface of the unit and includes a heating unit that uses the electric power generated by the thermoelectric generator to prevent ice from forming in the moving pipe region adjacent to the drawing-in unit. obtain.

  The evaporator may be provided with an anti-icing vaporization device including a seawater drawing part into which the seawater flows, and a seawater drawing part from which the seawater is discharged.

  An anti-icing vaporizer may be provided in which the thermoelectric generator is located closer to the draw-in section than to the draw-out section.

  The thermoelectric generator may surround the moving pipe, and an anti-icing vaporizer may be provided in which one side of the thermoelectric generator contacts the moving pipe and the other side of the thermoelectric generator contacts the seawater.

  An anti-icing vaporizer may be provided in which the heating unit heats the surface of the drawing unit such that the surface of the drawing unit is maintained at a predetermined first temperature or higher.

  Power generated by the thermoelectric generator is input to or cut off from the heat generator so that the temperature of the surface of the draw-in unit is maintained between the first temperature and a second temperature higher than the first temperature. The anti-icing vaporization device further includes a control unit that outputs a switch control signal to the switch.

  A compressor for compressing the vaporized fuel gas to form a fluid containing the liquefied fuel gas, a drive motor for providing a driving force to the compressor, and lowering the temperature of the fluid raised by the compressor via a cooling medium A cooling unit, a thermoelectric generator that generates electric power by a temperature difference between the fluid whose temperature has increased and the cooling medium, and a converter that converts electric power supplied from the thermoelectric generator and supplies the electric power to the drive motor. A vaporized fuel gas liquefaction process apparatus can be provided.

  The vaporized fuel gas liquefaction process device includes a liquefaction process unit including the compressor, the drive motor, the cooling unit and the thermoelectric power generation unit, and a liquefaction process unit including a plurality of liquefaction process units. The vaporized fuel gas liquefaction process apparatus in which the fluid that has flowed out flows into another one of the compressors may be provided.

  The thermoelectric power generation unit may be provided with a vaporized fuel gas liquefaction process apparatus located between a first pipe through which the fluid flows and a second pipe through which the cooling medium flows.

  A compressor for compressing the vaporized fuel gas to form a fluid containing the liquefied fuel gas, a drive motor for providing a driving force to the compressor, and lowering the temperature of the fluid raised by the compressor via a cooling medium A first thermoelectric generator, a second thermoelectric generator capable of generating power by a temperature difference between the fluid whose temperature has increased and the cooling medium, and at least one of the first thermoelectric generator and the second thermoelectric generator And a converter for converting the electric power supplied from the power supply and supplying the electric power to the drive motor.

  The thermoelectric power generation module according to the embodiment of the present invention, the thermoelectric power generation device including the same, the anti-icing vaporizer and the vaporized fuel gas liquefaction process device generate power by a temperature difference between cryogenic fluid flowing through piping and air, thereby consuming power. Has the effect of reducing

  A thermoelectric power generation module according to an embodiment of the present invention, a thermoelectric power generation device including the same, and an anti-icing vaporization device and a vaporized fuel gas liquefaction process device compress and reliquefy an evaporative gas or a vaporized fuel gas to produce a liquefied fuel gas. Since it is used to pressurize the water and to prevent seawater icing in the vaporizer, it has the effect of enabling efficient equipment operation.

  The thermoelectric generator, the anti-icing vaporizer and the vaporized fuel gas liquefaction process apparatus according to the embodiment of the present invention protects the pipes in a double manner and delays the fluid in the pipes from flowing out even when the pipes are damaged. Has an effect.

It is a perspective view showing a thermoelectric generation module by an embodiment of the present invention. It is sectional drawing which shows the piping periphery of the thermoelectric power generation module of FIG. FIG. 3 is a cross-sectional view of a pipe of the thermoelectric generation module of FIG. 2 cut in a length direction. It is a perspective view showing a thermoelectric generation module by other embodiments of the present invention. It is a key map showing the thermoelectric generator by an embodiment of the present invention. It is sectional drawing which shows an example of a vaporizer. It is a perspective view showing an example of a thermoelectric element. It is a figure showing various modifications of a thermoelectric generation part of a thermoelectric generator by an embodiment of the present invention. It is a figure showing various modifications of a thermoelectric generation part of a thermoelectric generator by an embodiment of the present invention. It is a figure showing various modifications of a thermoelectric generation part of a thermoelectric generator by an embodiment of the present invention. 1 is a cross-sectional view illustrating an anti-icing vaporizer according to an embodiment of the present invention. It is a perspective view showing an example of a thermoelectric semiconductor. It is a perspective view showing arrangement of a thermoelectric generation part of an anti-icing vaporization device by an embodiment of the present invention. FIG. 4 is a cross-sectional view illustrating an anti-ice vaporizer according to another embodiment of the present invention. FIG. 4 is a cross-sectional view illustrating an anti-ice vaporizer according to another embodiment of the present invention. FIG. 1 is a conceptual diagram illustrating a vaporized fuel gas liquefaction process apparatus according to an embodiment of the present invention. FIG. 7 is a view illustrating various modifications of a thermoelectric power generation unit of a vaporized fuel gas liquefaction process apparatus according to an embodiment of the present invention. FIG. 7 is a view illustrating various modifications of a thermoelectric power generation unit of a vaporized fuel gas liquefaction process apparatus according to an embodiment of the present invention. FIG. 7 is a view illustrating various modifications of a thermoelectric power generation unit of a vaporized fuel gas liquefaction process apparatus according to an embodiment of the present invention. FIG. 4 is a conceptual diagram illustrating a vaporized fuel gas liquefaction process apparatus according to another embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, it should be understood that the attached drawings are merely described for easier disclosure of the content of the present invention, and that the scope of the present invention is not limited to the scope of the attached drawings. Anyone with ordinary knowledge in can easily understand.

  The terms used in the present application are merely used to describe a particular embodiment and are not intended to limit the invention. The singular forms include the plural unless the context clearly dictates otherwise. In this application, terms such as "comprises" or "having" are intended to specify the presence of features, numbers, steps, acts, components, parts, or combinations thereof described in the specification. It is to be understood that the invention does not exclude the existence or possible addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

  FIG. 1 is a perspective view showing a thermoelectric generation module according to an embodiment of the present invention, FIG. 2 is a cross-sectional view showing the periphery of a pipe of the thermoelectric generation module of FIG. 1, and FIG. 3 is a thermoelectric generation module of FIG. FIG. 3 is a cross-sectional view of the pipe of FIG.

  Referring to FIGS. 1 to 3, a thermoelectric generation module 100 according to an embodiment of the present invention may include a pipe 110 and a thermoelectric generation unit 120.

  A fluid can flow through the pipe 110. Here, the fluid may be a liquefied fuel gas such as liquefied natural gas (LNG) or liquefied petroleum gas (LPG). Further, the fluid may be a cryogenic fluid such as liquefied carbon dioxide which is lower than normal temperature.

  The pipe 110 may be a single pipe. However, the pipe 110 is not limited to a single pipe, and may be a multiple pipe such as a double pipe or a triple pipe. In addition, the pipe 110 may be made of a material that can withstand a cryogenic fluid. The material of the pipe 110 may be stainless steel or aluminum (Al).

  The thermoelectric generator 120 surrounds the pipe and can generate electric power based on a temperature difference between the fluid and the outside air. For example, if the fluid is liquefied natural gas at about -163 [deg.] C and the outside air is about 0-30 [deg.] C, the temperature difference between the fluid and the air can be converted to electric power. The thermoelectric generator 120 may include a first shell 121, a second shell 122, and a plurality of thermoelectric elements 123.

  The first shell 121 may contact an outer peripheral surface of the pipe 110. In addition, the first shell 121 may be configured to completely surround the outside of the pipe 110. In addition, the first shell 121 may have a cylindrical shape corresponding to the outside of the pipe 110. The material of the first shell 121 may be a metal that transmits heat. In addition, the first shell 121 may be made of a material that can withstand a cryogenic fluid, similarly to the pipe. The material of the first shell 121 may be stainless steel or aluminum (Al). Further, the material of the first shell 121 may be a metal that can withstand the internal pressure of the pipe 121.

  The second shell 122 may be spaced apart from the first shell 121 at regular intervals. When the first shell 121 has a cylindrical shape, the second shell 122 may have a cylindrical shape having an outer diameter larger than that of the first shell 121. The material of the second shell 121 may be a metal that transfers heat, similarly to the first shell 122. In addition, the thickness of the second shell 122 may be greater than the thickness of the first shell 121 so as to protect the outside of the first shell 121.

  The plurality of thermoelectric elements 123 may be provided between the first shell 121 and the second shell 122. The thermoelectric element section 123 may include a low-temperature section in contact with the first shell 121 and a high-temperature section in contact with the second shell 122.

  Generally, a thermoelectric element has a structure in which NP-type thermoelectric semiconductors are electrically connected in series and thermally connected in parallel, and is formed by a Seebeck effect due to a Seebeck effect. Produce electricity using thermal energy. More specifically, when an N-type thermoelectric semiconductor is used in the thermoelectric element portion, the high-temperature portion becomes anodized and the low-temperature portion becomes a cathode, and a potential difference is generated between the high-temperature portion and the low-temperature portion.

  Hereinafter, the principle of operation of the thermoelectric generation module according to the embodiment of the present invention will be described.

  First, the temperature of the first shell 121 in contact with the pipe 110 may be the same as the temperature of the fluid stored in the pipe 110. In addition, the temperature of the low temperature part of the thermoelectric element part 123 in contact with the first shell 121 may be the same as the temperature of the first shell 121. As a result, the temperature of the fluid in the pipe 110 and the temperature of the low temperature part of the thermoelectric element unit 123 may be the same.

  In addition, the temperature of the second shell 122 may be equal to the temperature of the air outside the second shell 122. In addition, the temperature of the high temperature part of the thermoelectric element part 123 in contact with the second shell 122 may be the same as that of the second shell 122.

  Accordingly, the thermoelectric element unit 123 generates electric power based on a temperature difference between the high temperature part and the low temperature part.

  In addition, the plurality of thermoelectric elements 123 may be disposed apart from each other. Accordingly, a space 124 can be formed between the first shell 121 and the second shell 122.

  Further, the space 124 formed between the first shell 121 and the second shell 122 may contain an inert gas. The inert gas may be a gas having relatively low reactivity such as nitrogen, helium, neon, or the like. The inert gas may serve to block heat transfer between the first shell 121 and the second shell 122.

  In addition, the inert gas may delay the flow of the fluid in the interior 114 of the pipe 110 to the outside when the pipe 110 is damaged.

  The pressure between the first shell 121 and the second shell 122 may be the same as the internal pressure of the pipe 110. Accordingly, even when the pipe 110 is damaged, it is possible to delay the flow of the fluid in the inside 114 of the pipe to the outside.

  As described above, the thermoelectric generation module 100 according to the embodiment of the present invention can generate electric power using a temperature difference between the fluid and the outside air. Also, when the thermoelectric generation module 100 is installed on a marine structure, the energy efficiency of the marine structure can be improved. In addition, with the production of electric power without using fossil energy, environmental pollution can be prevented.

  In addition, in the thermoelectric generation module 100 according to the embodiment of the present invention, when the pipe 110 is a single pipe, even if the thermoelectric power generation unit 120 surrounds the pipe 110 and the pipe 100 is damaged, It is possible to prevent the fluid inside the pipe 110 from flowing out.

  FIG. 4 is a perspective view showing a thermoelectric generation module according to another embodiment of the present invention. Components that are not additionally described in the thermoelectric generation module according to another embodiment of the present invention described below are the same as the components of the thermoelectric generation module 100 described above, and thus detailed description will be omitted.

  The thermoelectric generator 130 according to another embodiment of the present invention may include a plurality of thermoelectric generators, unlike the above-described embodiment. That is, the thermoelectric generator 130 may surround a part of the outer peripheral surface of the pipe 110. The thermoelectric generator 130 may include a first shell 131, a second shell 132, and a plurality of thermoelectric elements 133.

  Accordingly, when each of the plurality of thermoelectric generators 130 is installed outside the pipe 110, the plurality of thermoelectric generators 130 can entirely surround the pipe 110.

  As described above, since the thermoelectric generation unit 130 applied to the thermoelectric generation module 101 according to another embodiment of the present invention includes a plurality, it is easy to install the thermoelectric generation unit 130 on the pipe 110. That is, the thermoelectric generation module 101 according to another embodiment of the present invention is different from the above-described embodiment in that the already installed pipes are not replaced and the thermoelectric generator for pipes 130 is added to the already installed pipes. Can be installed.

  Further, in the thermoelectric generator 101 according to another embodiment of the present invention, when the place where the pipe is installed is narrow, the thermoelectric generator 130 can be installed only in a part of the pipe that is easy to install.

  Hereinafter, a thermoelectric generator according to an embodiment of the present invention will be described.

  FIG. 5 is a conceptual diagram showing a thermoelectric generator according to an embodiment of the present invention. Referring to FIG. 5, a thermoelectric generator according to an embodiment of the present invention includes a compressor 210, a thermoelectric generator 230, and a vaporizer 240.

  As shown in FIG. 5, the compressor 210 can compress the vaporized gas of the liquefied fuel gas stored in the storage tank 200 and supply the compressed vaporized gas formed by the compression.

  Since the temperature of the evaporative gas stored in the storage tank 200 is very low, the speed of flowing out of the storage tank 200 and moving to the compressor 210 may be low.

  Therefore, the heat generating portion 285 can be disposed between the storage tank 200 and the compressor 210 to heat the evaporated gas. For example, the heating unit 285 may include a heater or a hard wire, and the heating unit 285 is merely an example and is not limited thereto.

  In addition, the thermoelectric generator according to the embodiment of the present invention may further include a cooler 220. The cooler 220 is connected to the compressor 210 to reduce the temperature of the compressed evaporative gas. .

  The evaporative gas may flow into the vaporizer 240 through the plurality of compressors 210 and the plurality of coolers 220.

  When a single compressor 210 is used as compared with a compressor using a plurality of compressors 210, the compression ratio of the compressor 210 increases and the temperature increases after compression, so that the compression efficiency may be low. In addition, the temperature of the evaporative gas compressed by the compression may be excessively increased, and the compressor 210 may be overheated, so that the power consumed by the compressor 210 may increase.

  Therefore, using a plurality of compressors 210 to increase the compression efficiency and using a plurality of coolers 220 to lower the temperature of the compressed evaporative gas to reduce the power used by the compressors 210. Can be.

  At this time, the temperature of the compressed evaporative gas that has passed through the plurality of coolers 220 may be higher than the temperature of the liquefied fuel gas.

  The compressed evaporative gas can move through a first pipe 281 connecting the cooler 220 and the vaporizer 240, and the liquefied fuel gas flows through a second pipe 282 connecting the storage tank 200 and the vaporizer 240. You can move through.

  That is, the first pipe 281 may provide a passage for the compressed evaporative gas to move to the vaporizer 240, and may contact one surface of the thermoelectric generator 230. In addition, the second pipe 282 provides a passage for the liquefied fuel gas to move to the vaporizer 240, and may contact the other surface of the thermoelectric generator 230.

  Therefore, the thermoelectric generator 230 can generate power using the temperature difference between the compressed evaporative gas that has passed through the compressor 210 and the liquefied fuel gas supplied from the storage tank 200. That is, the temperature of the evaporative gas compressed by the compression becomes higher than that of the liquefied fuel gas, so that the thermoelectric generator 230 can generate electric power using the temperature difference between the compressed evaporative gas and the liquefied fuel gas.

  In addition, as shown in FIG. 5, the liquefied fuel gas passes through the first pump 250 and the second pump 260 while moving from the storage tank 200 to the vaporizer 240.

  The first pump 250 is installed in the second pipe 282 and can pressurize and transfer the liquefied fuel gas, and the second pump 260 is installed between the first pump 250 and the vaporizer 240 and The pressure of the liquefied fuel gas flowing out of 250 can be increased.

  That is, the liquefied fuel gas flows out of the storage tank 200 by the first pump 250 and flows through the second pipe 282, and can be pressurized by the second pump 260 and flow into the vaporizer 240.

  In the case of a ship ME-GI engine, a high-pressure gas supply of about 150 to 400 bar (absolute pressure) is required.

  Therefore, when the liquefied fuel gas is supplied to the ME-GI engine, for example, the first pump 250 may be a booster pump, and the second pump 260 may be a high-pressure pump.

  That is, the pressure of the liquefied fuel gas stored in the storage tank 200 via the first pump 250 is increased by the inflow pressure of the second pump 260 and transferred, and the liquefied fuel gas having the increased pressure is supplied to the second pump 260. The pressure can be increased at a pressure required for supply of the ME-GI engine via the control unit.

  The first pump 250 and the second pump 260 are merely examples, and the present invention is not limited thereto. Various pumps may be used depending on the engine.

  The compressed evaporative gas and the liquefied fuel gas may be integrated after passing through the thermoelectric generator 230. The first pipe 281 and the second pipe 282 may be connected so that the compressed evaporative gas and the liquefied fuel gas that have passed through the thermoelectric generator 230 are integrated.

  Therefore, the temperature of the liquefied fuel gas can be increased by the temperature of the compressed evaporative gas, so that the vaporization efficiency of the carburetor 240 can be increased as compared with the case of vaporizing the low-temperature liquefied fuel gas.

  The vaporizer 240 vaporizes the compressed evaporative gas and the liquefied fuel gas that have passed through the thermoelectric generator 230 and supplies the vaporized gas and the liquefied fuel gas to the engine.

  Such a vaporizer 240 will be described in detail with reference to FIG.

  The thermoelectric generator according to the embodiment of the present invention may further include a conversion unit 270.

  The converter 270 can convert the electricity generated by the thermoelectric generator 230 and supply the converted electricity to the compressor 210, the first pump 250, and the second pump 260.

  For example, a transformer for adjusting the voltage of the electricity generated by the thermoelectric generator 230 to the rated voltage of the compressor 210, the first pump 250, and the second pump 260 may be included. The frequency of electricity supplied to the pump 250 and the second pump 260 can be converted. Such conversion of electricity is not limited to this, and there may be various conversion methods.

  Therefore, as shown in FIG. 5, the thermoelectric generator according to the embodiment of the present invention evaporates the evaporative gas and uses it as fuel for the engine. Can be easier.

  Further, electricity generated by the thermoelectric generator 230 may be supplied to the compressor 210, the first pump 250, and the second pump 260 to reduce power.

  FIG. 6 shows a vaporizer of a thermoelectric generator according to an embodiment of the present invention. As shown in FIG. 6, the vaporizer 240 includes a moving pipe 245 for connecting a drawing section 241 into which the compressed evaporative gas and the liquefied fuel gas flow and a drawing section 242 from which the vaporized fuel is drawn. A space through which seawater that exchanges heat with the H.245 flows can be provided.

  As described in FIG. 5, when the compressed evaporative gas and the liquefied fuel gas are integrated, the temperature of the liquefied fuel gas increases due to the temperature of the compressed evaporative gas.

  The compressed evaporative gas and liquefied fuel gas are heated by the seawater flowing inside the vaporizer 240 while passing through the moving pipe 245, and may be converted into vaporized fuel.

  As described with reference to FIG. 5, since the temperature of the liquefied fuel gas increases, the vaporization efficiency of the vaporizer 240 may increase.

  FIG. 7 shows an example of a thermoelectric element. As shown in FIG. 7, the thermoelectric element 231 is a semiconductor including an N-type element and a P-type element, and heat of the first medium and the second medium having a temperature difference is applied to one surface and the other surface of the thermoelectric element 231. When the thermoelectric element 231 contacts the thermoelectric element, the thermoelectric element 231 can generate power using the Seebeck effect.

  The Seebeck effect is a thermoelectric phenomenon in which when a temperature difference occurs between two metals or semiconductors, a current flows through a closed circuit connecting the two metals or semiconductors.

  Therefore, the thermoelectric generator 230 includes the thermoelectric elements 231 connected in series or in parallel, and can generate electric power using the temperature difference between one surface and the other surface of the thermoelectric generator 230. That is, as shown in FIG. 5, power generation can be performed using the temperature difference between the compressed evaporative gas and the liquefied fuel gas.

  8 to 10 show a thermoelectric generator of a thermoelectric generator according to an embodiment of the present invention.

  As shown in FIG. 8, the thermoelectric generator 230 may be disposed between a first pipe 281 through which the compressed evaporative gas flows and a second pipe 282 through which the liquefied fuel gas flows.

  At this time, one surface of the thermoelectric generator 230 contacts the first pipe 281, the other surface of the thermoelectric generator 230 contacts the second pipe 282, and the thermoelectric generator 230 compresses the evaporative gas and the liquefied fuel. Electric power can be generated using the temperature difference with the gas.

  Alternatively, as shown in FIG. 9, the thermoelectric generator 230 is located between the first pipe 281 and the second pipe 282, and one of the first pipe 281 and the second pipe 282 is at least the other of the other. Part can be surrounded.

  For example, when one surface of the thermoelectric generator 230 contacts the second pipe 282, the other surface of the thermoelectric generator 230 can contact the first pipe 281 through which the compressed evaporative gas flows. Alternatively, conversely, when one surface of the thermoelectric generator 230 contacts the first pipe 281, the other surface of the thermoelectric generator 230 may contact the second pipe 281 through which the liquefied fuel gas flows.

  As shown in FIG. 10, the thermoelectric generator 230 may be used as a partition between the first pipe 281 and the liquefied fuel gas so that the first pipe 281 does not contact the liquefied fuel gas.

  As shown in FIG. 10, since the thermoelectric generator 230 surrounds the first pipe 281, the first pipe 281 cannot directly contact the liquefied fuel gas.

  In contrast to this, when the first pipe 281 and the liquefied fuel gas come into direct contact, heat exchange between the first pipe 281 and the liquefied fuel gas is performed, and the compressed evaporative gas flowing through the first pipe 281 The temperature difference with the liquefied fuel gas can be small.

  Therefore, since the amount of electricity generated in the thermoelectric generator 230 can be reduced, the first pipe 281 and the liquefied fuel gas must be separated.

  The electricity generated by the thermoelectric generator 230 shown in FIGS. 8 to 10 may be converted via the converter 270 described above with reference to FIG.

  The electricity converted by the conversion unit 270 is supplied to the compressor 210, the first pump 250, and the second pump 260, and the power consumed by the compressor 210, the first pump 250, and the second pump 260 can be reduced.

  The thermoelectric generator according to the embodiment of the present invention compresses and cools the evaporative gas generated in the liquefied fuel storage tank 200, and then flows into the carburetor 240 to be used as fuel for the engine. Since the process of converting the furnace is omitted, the structure can be simplified.

  Further, electricity is generated by using the temperature difference between the compressed evaporative gas and the liquefied fuel gas, and the generated electricity is supplied to the compressor 210, the first pump 250, and the second pump 260, thereby saving power. it can.

  Hereinafter, an anti-icing vaporizer according to an embodiment of the present invention will be described.

  Referring to FIG. 6, a general vaporizer 240 converts a liquefied fuel gas drawn into a drawing unit 241 into a gaseous vaporized fuel gas after exchanging heat with seawater as a heat exchange medium. The vaporized fuel gas may be exhausted from the outlet 242 of the vaporizer 240.

  During the process of vaporizing the liquefied fuel gas through the vaporizer 240, ice may be generated in the region of the moving pipe 245 adjacent to the inlet 241 by the liquefied fuel gas and seawater. If icing occurs in the region of the moving pipe 245 adjacent to the drawing section 241, heat exchange between the liquefied fuel gas passing through the moving pipe 245 and seawater is not performed smoothly, so that the performance of the vaporizer 240 deteriorates. obtain.

  FIG. 11 shows an anti-icing vaporizer according to an embodiment of the present invention. As shown in FIG. 11, the anti-ice vaporizer according to the embodiment of the present invention includes a vaporizer 300, a thermoelectric generator 310 and a heat generator 320.

  The vaporizer 300 is a device that vaporizes the liquefied fuel gas into the vaporized fuel gas, and includes a moving pipe 303 that connects a drawing part 301 into which the liquefied fuel gas is drawn and a drawing part 302 from which the vaporized fuel gas is drawn, It is possible to provide a space in which seawater that exchanges heat with the moving pipe 303 flows.

  The thermoelectric generator 310 can generate electric power by a temperature difference between a fluid containing at least one of the liquefied fuel gas and the vaporized fuel gas that moves through the moving pipe 303 and seawater.

  During the passage through the moving pipe 303, the liquefied fuel gas can change from a liquid state to a gaseous fuel gas. As a result, the closer to the draw-in section 301, the more liquefied fuel gas in the fluid is in the liquid phase than the vaporized fuel gas, and the closer to the draw-out section 302, the more the liquefied fuel gas is in the fluid to the liquefied fuel gas. There are many more.

  The heat generating unit 320 is disposed on the surface of the retracting unit 301, and can prevent the area of the moving pipe 303 adjacent to the retracting unit 301 from freezing using the electric power generated by the thermoelectric generator 310.

  The heat generating unit 320 may include a heater or a hard wire, but such a heat generating unit 320 is only an example and is not limited thereto.

  The vaporizer 300 of the anti-icing vaporizer according to the embodiment of the present invention may include a seawater inlet 305 into which seawater as a heat exchange medium flows, and a seawater outlet 304 from which seawater is discharged.

  Since seawater is discharged after heat exchange with the moving pipe 303 inside the vaporizer 300, the seawater moving line 306 may include a pump 307 for moving seawater and a valve 308 for adjusting the flow rate of seawater. Good.

  As shown in FIG. 11, the thermoelectric generator 310 surrounds the moving pipe 303, one side of the thermoelectric generator 310 contacts the moving pipe 303, and the other side of the thermoelectric generator 310 contacts the seawater. obtain.

  The thermoelectric generator 310 may be arranged closer to the draw-in unit 301 than to the drawer 302. This is because the temperature of the fluid becomes higher as the fluid passing through the moving pipe 303 goes from the inlet 301 to the outlet 302 during heat exchange with seawater.

  That is, the temperature difference between the moving pipe 303 and the seawater becomes smaller toward the drawer 302, so that the power generated by the thermoelectric generator 310 can be smaller.

  On the other hand, if the thermoelectric generator 310 is arranged closer to the draw-in section 301 than to the draw-out section 302, relatively more electric power can be produced.

  The heat generating unit 320 can heat the surface of the draw-in unit 301 so that the surface of the draw-in unit 301 is maintained at a preset first temperature or higher by the electric power input from the thermoelectric generator 310. As described above, when the surface of the retracting portion 301 is heated, the heat is transferred to the region of the moving tube 303 adjacent to the retracting portion 301, and the area of the moving tube 303 adjacent to the retracting portion 301 freezes. Can be prevented.

  That is, by preventing icing that hinders heat exchange between the fluid flowing through the moving pipe 303 and seawater, heat exchange between the fluid and seawater can be performed smoothly, and the performance of the vaporizer 300 can be improved.

  The anti-ice vaporizing device according to the embodiment of the present invention may further include a controller 340.

  The control unit 340 transmits the electric power generated by the thermoelectric power generation unit 310 to the heat generation unit 320 such that the temperature of the surface of the drawing unit 301 is maintained between the first temperature and the second temperature higher than the first temperature. A switch control signal to be input or cut off can be output to the switch 330.

  Note that a temperature sensor 350 can be installed on the surface of the retracting section 301. A temperature sensor signal indicating the temperature of the surface of the pull-in unit 301 measured by the temperature sensor 350 may be input to the control unit 340.

  The control unit 340 controls the switch 330 so that the electric power generated by the thermoelectric generator 310 can be input to the heat generator 320 when the surface of the pull-in unit 301 is lower than a preset first temperature. A switch control signal for electrically connecting the unit 320 may be output.

  In addition, the control unit 340 controls the switch 330 to switch the thermoelectric power generation unit 310 and the heat generation unit 320 so that the power generated by the thermoelectric generation unit 310 is not input to the heat generation unit 320 when the surface of the retracting unit 301 is higher than the second temperature. Can be output.

  The fact that the temperature of the surface of the retracting unit 301 is higher than the second temperature indicates that the electric power input to the heat generating unit 320 is excessive, and therefore, the heat generating unit 320 may be damaged.

  That is, the control unit 340 controls the temperature of the surface of the retracting unit 301 to be maintained between the first temperature and the second temperature to prevent the area of the moving pipe 303 adjacent to the retracting unit 301 from freezing. This can prevent the heat generating portion 320 from being damaged due to overheating.

  FIG. 12 shows an example of a thermoelectric semiconductor. As shown in FIG. 12, when heat of the first medium and the second medium having a temperature difference moves through one side and the other side of the thermoelectric semiconductor 311, the thermoelectric semiconductor 311 uses the Seebeck effect to generate electric power. Can be produced.

  FIG. 13 is a perspective view of a thermoelectric generator of the anti-icing vaporizer according to the embodiment of the present invention. As shown in FIG. 13, the thermoelectric semiconductors 311 may be connected in series or in parallel to form the thermoelectric generator 310.

  The thermoelectric generator 310 surrounds the moving pipe 303. At this time, one side of the thermoelectric generator 310 can be in contact with the moving pipe 303, and the other side of the thermoelectric generator 310 can be in contact with seawater.

  FIGS. 14 and 15 are views showing an anti-icing vaporizer according to another embodiment of the present invention, showing various modified embodiments of the arrangement between the switch 330, the thermoelectric generator 310 and the converter 360. FIG. As shown in FIGS. 14 and 15, when the electric power generated by the thermoelectric generator 310 is not suitable for using the heat generator 320, the converter 360 can be used.

  The converter 360 can convert the electric power generated by the thermoelectric generator 310 into electric power suitable for supplying to the heat generator 320. The conversion unit 360 may be variously changed according to the installation environment of the anti-ice vaporizer according to the embodiment of the present invention.

  For example, when the voltage of the electricity generated by the thermoelectric generator 310 does not match the rated voltage of the heat generator 320, the converter 360 uses a transformer or the like for adjusting the voltage of the thermoelectric generator 310 to the rated voltage of the heat generator 320. May be included.

  As shown in FIGS. 14 and 15, the switch 330 may be disposed between the thermoelectric generator 310 and the converter 360, or between the converter 360 and the heat generator 320. The power generated by the thermoelectric generator 310 can be input to or cut off from the heat generator 360 according to the switch control signal output at 340.

  In the drawings referred to above, the icing prevention and vaporization apparatus according to the embodiment of the present invention prevents the area of the moving pipe 303 adjacent to the drawing part 301 of the carburetor 300 from icing and improves the performance of the carburetor 300. be able to.

  In addition, the anti-icing vaporization device of the present invention can prevent icing by electric power generated using the temperature difference between seawater and liquefied fuel gas, thereby preventing icing without additional power consumption, It is possible to prevent icing without using the gas, and to solve the problem of corrosion of the vaporizer 300.

  Hereinafter, a vaporized fuel gas liquefaction process apparatus according to an embodiment of the present invention will be described.

  FIG. 16 is a diagram illustrating a vaporized fuel gas liquefaction process apparatus according to an embodiment of the present invention. Referring to FIG. 16, the apparatus for liquefying vaporized fuel gas according to an embodiment of the present invention includes a compressor 400, a driving motor 410, a cooling unit 420, a thermoelectric generator 430, and a converter 440.

  The compressor 400 can compress the vaporized fuel gas to form a fluid containing the liquefied fuel gas. The compression may cause the fluid to all increase in pressure and temperature as compared to the vaporized fuel gas.

  The cooling unit 420 can lower the temperature of the fluid raised by the compressor 400 via the cooling medium. The fluid may drop in temperature and eventually turn into a liquefied fuel gas.

  The thermoelectric power generation unit 430 can generate power by the temperature difference between the fluid whose temperature has increased and the cooling medium. That is, the thermoelectric generator 430 can generate electric power by using the temperature difference between the fluid and the cooling medium used in the vaporized fuel gas liquefaction process. The cooling medium may be separately supplied to the cooling unit 420 and the thermoelectric generator 430.

  The conversion unit 440 can convert the power supplied from the thermoelectric generator 430 and supply the converted power to the drive motor 410. The conversion unit 440 may be variously changed according to an installation environment of the apparatus for liquefying a gaseous fuel gas according to an embodiment of the present invention.

  For example, if the voltage of the electricity generated by the thermoelectric generator 430 does not match the rated voltage of the drive motor 410, the converter 440 may use a transformer or the like to adjust the voltage of the thermoelectric generator 430 to the rated voltage of the drive motor 410. May be included.

  The driving motor 410 may provide a driving force to the compressor 400. Since the driving motor 410 can use the electric power generated by the thermoelectric generator 430 in addition to the electric power supplied to the liquefaction process apparatus, the overall power of the vaporized fuel gas liquefaction process apparatus can be reduced.

  The vaporized fuel gas liquefaction process apparatus according to the embodiment of the present invention includes a compressor 400, a drive motor 410, a liquefaction process unit 450 including a cooling unit 420 and a thermoelectric power generation unit 430, and includes a plurality of liquefaction process units 450. The fluid flowing out of one cooling unit 420 may flow into another compressor 400.

  When a plurality of liquefaction units 450 are used, the power required for compressing the vaporized fuel gas is reduced, the compression efficiency can be increased, and the cooling efficiency can be improved as compared with the case where one liquefaction unit 450 is used. Can also increase.

  In addition, since the thermoelectric generator 430 included in the plurality of liquefaction units 450 generates electric power and supplies it to the drive motor 410, the power consumed in the plurality of liquefaction units 450 can be reduced.

  17 to 19 are a perspective view and a cross-sectional view showing various modified examples of the thermoelectric generator of the vaporized fuel gas liquefaction process apparatus according to the embodiment of the present invention.

  As shown in FIGS. 17 and 18, the thermoelectric generator 430 may be located between the first pipe 460 through which the fluid flows and the second pipe 465 through which the cooling medium flows. One of the first pipe 460 and the second pipe 465 can surround at least a part of the other.

  For example, as shown in FIG. 17, when the first pipe 460 surrounds the second pipe 465, one side of the thermoelectric generator 430 contacts the fluid, and the other side of the thermoelectric generator 430 contacts the second pipe 465. obtain.

  On the other hand, as shown in FIG. 18, when the second pipe 465 surrounds the first pipe 460, one side of the thermoelectric generator 430 contacts the cooling medium and the other side of the thermoelectric generator 430 connects to the first pipe 460. May come into contact with.

  FIG. 19 shows a thermoelectric generator different from FIGS. 17 and 18. As shown in FIG. 19, one side of the thermoelectric generator 430 may contact the fluid that has passed through the compressor 400, and the other side of the thermoelectric generator 430 may contact a medium pipe 470 through which a cooling medium flows.

  The thermoelectric generator 430 may be used as a partition between the medium pipe 470 and the fluid such that the fluid does not contact the medium pipe 470. On the other hand, when the medium pipe 470 comes into contact with a fluid, the amount of power generation may decrease or power generation may not be performed. Therefore, the fluid must be separated from the medium pipe 470. In the embodiment of the present invention, since the thermoelectric generator 430 functions as a partition, the fluid can be separated from the medium pipe 470 without a separate configuration. .

  The media pipe 470 may be installed to intersect the direction in which the fluid flows.

  As shown in FIGS. 17 to 19, the thermoelectric generator 430 can generate electric power by using a temperature difference between one side of the thermoelectric generator 430 and the other side of the thermoelectric generator 430.

  The electric power generated by the thermoelectric generator 430 can be supplied to the driving motor 410 to drive the compressor 400, and the electric power of the vaporized fuel gas liquefaction process apparatus can be reduced.

  FIG. 20 shows a vaporized fuel gas liquefaction process apparatus according to another embodiment of the present invention. As shown in FIG. 20, the apparatus for liquefying vaporized fuel gas according to another embodiment of the present invention includes a compressor 400, a driving motor 410, a first thermoelectric generator 500, a second thermoelectric generator 510, and a converter 440. including.

  The compressor 400 may compress the vaporized fuel gas to form a fluid including liquefied natural gas, and the driving motor 410 may provide a driving force to the compressor 400.

  The first thermoelectric generator 500 can lower the temperature of the fluid raised by the compressor 400 through the cooling medium, and the second thermoelectric generator 510 can reduce the temperature of the fluid and the cooling medium whose temperature has increased. Power generation can be performed.

  The first thermoelectric generator 500 and the second thermoelectric generator 510 may include a plurality of thermoelectric elements. The thermoelectric element generates electric power through heat exchange based on a temperature difference between one side and the other side, so that heat of the fluid is transmitted to the cooling medium, so that the fluid can be cooled.

  Therefore, the first thermoelectric generator 500 may lower the temperature of the fluid raised by the compressor 400 via the cooling medium, as in the cooling unit 420 included in the vaporized fuel gas liquefaction process apparatus according to the embodiment of the present invention. it can.

  Both the first thermoelectric generator 500 and the second thermoelectric generator 510 can generate power using the temperature difference between the fluid and the cooling medium. The power produced by the second thermoelectric generator 500 and the power produced by the second thermoelectric generator 510 may be the same or different.

  The converter 440 may convert power supplied from at least one of the first thermoelectric generator 500 and the second thermoelectric generator 510 and supply the converted power to the drive motor 410. The conversion unit 440 may be variously changed according to an installation environment of the apparatus for liquefying a vaporized fuel gas according to another embodiment of the present invention.

  For example, when the voltage of the electricity produced by the first thermoelectric generator 500 and the second thermoelectric generator 510 does not match the rated voltage of the drive motor 410, the converter 440 converts the voltage of the first thermoelectric generator 500 and the second thermoelectric generator. A transformer or the like for adjusting the voltage of the unit 510 to the rated voltage of the drive motor 410 may be included.

  The vaporized fuel gas liquefaction process apparatus according to another embodiment of the present invention supplies the electric power generated by the first thermoelectric power generation unit 500 and the second thermoelectric power generation unit 510 to the drive motor 410 to provide the vaporized fuel gas liquefaction process device. Electric power can be reduced.

  A vaporized fuel gas liquefaction process apparatus according to another embodiment of the present invention includes a compressor 400, a drive motor 410, and a liquefaction process unit 450 including a first thermoelectric power generation unit 500 and a second thermoelectric power generation unit 510. The fluid flowing out of one first thermoelectric generator 500 of the liquefaction process units 450 may flow into another compressor 400.

  The use of the plurality of liquefaction process units 450 has been described above according to the embodiment of the present invention, and a description thereof will be omitted.

  As shown in FIGS. 17 and 18, at least one of the first thermoelectric generator 500 and the second thermoelectric generator 510 includes a first pipe 460 through which a fluid flows and a second pipe 465 through which a cooling medium flows. Can be located in between.

  One of the first pipe 460 and the second pipe 465 can surround at least a part of the other.

  For example, as shown in FIG. 17, when the first pipe 460 surrounds the second pipe 465, at least one side of the first thermoelectric generator 500 and the second thermoelectric generator 510 comes into contact with the fluid, At least one other side of the first thermoelectric generator 500 and the second thermoelectric generator 510 may contact the second pipe 465.

  On the other hand, as shown in FIG. 18, when the second pipe 465 surrounds the first pipe 460, at least one side of the first thermoelectric generator 500 and the second thermoelectric generator 510 contacts the cooling medium. In addition, at least one other side of the first thermoelectric generator 500 and the second thermoelectric generator 510 may contact the first pipe 460.

  As shown in FIG. 19, at least one side of the first thermoelectric power generation unit 500 and the second thermoelectric power generation unit 510 is in contact with a fluid, and the first thermoelectric power generation unit 500 and the second thermoelectric power generation unit 510 are provided. At least one other side may contact the medium pipe 470 through which the cooling medium flows.

  At least one of the first thermoelectric generator 500 and the second thermoelectric generator 510 may be used as a partition between the medium pipe 470 and the fluid so that the medium pipe 470 does not contact the fluid. The function of the partition has been described above according to the embodiment of the present invention, and a description thereof will be omitted.

  Referring to the drawings referred to above, the vaporized fuel gas liquefaction process apparatus according to the embodiment of the present invention connects the compressor 400 and the cooler 420 in multiple stages to compress and vaporize the vaporized fuel gas step by step, thereby cooling the vaporized fuel gas. The furnace can be changed.

  Further, the vaporized fuel gas liquefaction process apparatus of the present invention is used in the liquefaction process by supplying electric power produced using the temperature difference between the fluid and the cooling medium to the drive motor 410 of the vaporized fuel gas compressor 400. Power consumption can be reduced.

  As described above, the embodiment according to the present invention has been described, but in addition to the embodiment described earlier, the fact that the present invention can be embodied in other specific forms without departing from the spirit and scope thereof is It is self-evident to those of ordinary skill in the art. Therefore, the above-described embodiments should be regarded as illustrative rather than restrictive, so that the present invention is not limited to the foregoing description, but rather by the scope of the appended claims and their claims It can be changed within an equivalent range.

(Appendix 1)
A pipe through which the fluid flows,
A thermoelectric power generation unit that surrounds the pipe and generates electric power by a temperature difference between the fluid and the outside air.
(Appendix 2)
The thermoelectric generator,
A first shell in contact with an outer peripheral surface of the pipe;
A second shell spaced apart from the first shell at regular intervals;
The thermoelectric generation module according to claim 1, further comprising: a plurality of thermoelectric elements provided between the first shell and the second shell.
(Appendix 3)
The thermoelectric generation module according to claim 2, wherein an inert gas is contained between the first shell and the second shell.
(Appendix 4)
The thermoelectric power generation module according to claim 3, wherein a pressure between the first shell and the second shell is the same as an internal pressure of the pipe.
(Appendix 5)
A compressor for compressing the vaporized gas of the liquefied fuel gas stored in the storage tank;
A thermoelectric generator that generates power using a temperature difference between the fluid that has passed through the compressor and the liquefied fuel gas supplied from the storage tank,
A vaporizer that vaporizes the fluid and the liquefied fuel gas that have passed through the thermoelectric generator and supplies the vaporized gas to the engine.
(Appendix 6)
A first pipe that provides a passage for the fluid to move to the vaporizer and contacts one surface of the thermoelectric generator;
The thermoelectric generator according to claim 5, further comprising: a second pipe that provides a passage for the liquefied fuel gas to move to the vaporizer, and that contacts a second surface of the thermoelectric generator.
(Appendix 7)
A first pump installed in the second pipe to transfer the liquefied fuel gas by increasing its pressure;
A second pump installed between the first pump and the vaporizer for increasing the pressure of the liquefied fuel gas flowing out of the first pump;
The thermoelectric generator according to claim 6, further comprising: a converter that converts the electricity generated by the thermoelectric generator to supply the electric power to the compressor, the first pump, and the second pump.
(Appendix 8)
The thermoelectric generator according to claim 6, wherein one of the first pipe and the second pipe surrounds at least a part of another one.
(Appendix 9)
7. The thermoelectric generator according to claim 6, wherein the thermoelectric generator is used as a partition between the first pipe and the liquefied fuel gas so that the first pipe does not contact the liquefied fuel gas. apparatus.
(Appendix 10)
The vaporizer includes a moving pipe that connects a drawing part into which the fluid and the liquefied fuel gas flow and a drawing part from which the vaporized fuel is drawn, and provides a space through which seawater that exchanges heat with the moving pipe flows. The thermoelectric generator according to attachment 5, characterized in that:
(Appendix 11)
A moving pipe that connects a drawing section into which the liquefied fuel gas is drawn and a drawing section from which the vaporized fuel gas is drawn, and provides a space through which seawater that exchanges heat with the moving pipe flows to convert the liquefied fuel gas into the vaporized fuel gas; A vaporizer to vaporize,
A thermoelectric generator capable of generating power by a temperature difference between the fluid containing at least one of the liquefied fuel gas and the vaporized fuel gas moving through the moving pipe and the seawater,
A heat generating unit disposed on a surface of the retracting unit and configured to prevent the moving pipe region adjacent to the retracting unit from icing using electric power generated by the thermoelectric power generating unit; .
(Appendix 12)
12. The anti-icing vaporization device according to claim 11, wherein the vaporizer includes a seawater drawing part into which the seawater flows, and a seawater drawing part from which the seawater is discharged.
(Appendix 13)
12. The anti-icing vaporizer according to claim 11, wherein the thermoelectric generator is arranged closer to the draw-in part than to the draw-out part.
(Appendix 14)
The icing described in Supplementary Note 11, wherein the thermoelectric generator surrounds each of the moving pipes, and one side of the thermoelectric generator contacts the moving pipe, and the other side of the thermoelectric generator contacts the seawater. Prevention vaporizer.
(Appendix 15)
12. The anti-icing vaporizer according to claim 11, wherein the heat generating unit heats the surface of the drawing unit such that the surface of the drawing unit is maintained at a first temperature or higher set in advance.
(Appendix 16)
Inputting or shutting off the power generated by the thermoelectric generator to the heat generating unit such that the temperature of the surface of the drawing unit is maintained between the first temperature and the second temperature higher than the first temperature. 12. The anti-icing vaporizer according to claim 11, further comprising a control unit that outputs a switch control signal to the switch.
(Appendix 17)
A compressor for compressing the vaporized fuel gas to form a fluid containing the liquefied fuel gas;
A drive motor that provides drive power to the compressor;
A cooling unit that lowers the temperature of the fluid raised by the compressor through a cooling medium,
A thermoelectric generator for generating electric power by a temperature difference between the fluid whose temperature has increased and the cooling medium,
A converter for converting the electric power supplied from the thermoelectric generator and supplying the electric power to the drive motor.
(Appendix 18)
The vaporized fuel gas liquefaction process device includes a liquefaction process unit including the compressor, the drive motor, the cooling unit and the thermoelectric power generation unit,
18. The vaporized fuel gas liquefaction process apparatus according to claim 17, wherein the fluid flowing out of one of the plurality of liquefaction process units from the cooling unit flows into the other one of the compressors.
(Appendix 19)
18. The vaporized fuel gas liquefaction apparatus according to claim 17, wherein the thermoelectric generator is located between a first pipe through which the fluid flows and a second pipe through which the cooling medium flows.
(Appendix 20)
A compressor for compressing the vaporized fuel gas to form a fluid containing the liquefied fuel gas;
A drive motor that provides drive power to the compressor;
A first thermoelectric generator for lowering the temperature of the fluid raised by the compressor through a cooling medium;
A second thermoelectric generator capable of generating power by a temperature difference between the fluid whose temperature has increased and the cooling medium,
A converter for converting electric power supplied from at least one of the first thermoelectric generator and the second thermoelectric generator and supplying the electric power to the drive motor.

JP 2008-305991 A JP 2010-136507 A Korean Laid-Open Patent No. 10-2011-0129159 JP 2006-303320 A

Claims (6)

A moving pipe that connects a drawing section into which the liquefied fuel gas is drawn and a drawing section from which the vaporized fuel gas is drawn, and provides a space through which seawater that exchanges heat with the moving pipe flows to convert the liquefied fuel gas into the vaporized fuel gas; A vaporizer to vaporize,
A thermoelectric generator capable of generating power by a temperature difference between the fluid containing at least one of the liquefied fuel gas and the vaporized fuel gas moving through the moving pipe and the seawater,
A heat generating unit disposed on a surface of the retracting unit and configured to prevent the moving pipe region adjacent to the retracting unit from icing using electric power generated by the thermoelectric power generating unit; .   2. The anti-icing vaporizer according to claim 1, wherein the vaporizer includes a seawater inlet into which the seawater flows, and a seawater outlet through which the seawater is discharged. 3.   2. The anti-icing vaporizer according to claim 1, wherein the thermoelectric power generation unit is disposed closer to the drawing unit than the drawing unit. 3.   2. The thermoelectric generator according to claim 1, wherein each of the thermoelectric generators surrounds the moving pipe, one side of the thermoelectric generator contacts the moving pipe, and the other side of the thermoelectric generator contacts the seawater. 3. Anti-ice vaporizer.   The anti-icing vaporizer according to claim 1, wherein the heating unit heats the surface of the draw-in unit such that the surface of the draw-in unit is maintained at a predetermined first temperature or higher.   Inputting or shutting off the power generated by the thermoelectric generator to the heat generating unit such that the temperature of the surface of the drawing unit is maintained between the first temperature and the second temperature higher than the first temperature. The apparatus according to claim 1, further comprising a control unit that outputs a switch control signal to the switch.

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