Resource supply system
By integrating gas compression, heat exchange, and expansion devices on the floating platform, fresh water and electricity are generated, solving the problem that traditional resource replenishment methods affect the ship's travel speed and realizing resource replenishment without route changes.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2026-03-26
AI Technical Summary
Traditional resupply methods require ships to deviate from their routes to resupply, which affects the speed of the journey.
A resource supply system is provided, including a floating platform, a gas compression device, a gas expansion device, a first heat exchange device, and a seawater distillation device. Fresh water and electrical energy are generated on the floating platform through gas compression, heat exchange, and expansion processes, enabling resource replenishment without changing the route.
It provides electricity and freshwater replenishment without affecting the ship's travel speed, thus improving the efficiency and flexibility of resource supply.
Smart Images
Figure CN2024112352_26032026_PF_FP_ABST
Abstract
Description
Resource supply system
[0001] The present application claims priority to the Chinese patent application No. 2024109642248, filed on July 17, 2024, and entitled "Resource supply system", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD
[0002] The present application relates to the technical field of offshore resource supply, and in particular to a resource supply system. BACKGROUND
[0003] The total area of China's sea area is about 4.73 million square kilometers. In order to develop and utilize marine resources in depth, it is necessary to ensure that ships can be supplied with resources such as electricity and fresh water. Usually, ships need to choose nearby islands for docking to use the electricity and fresh water on the islands to supply resources to the ocean-going ships. However, this resource replenishment method will make the ship temporarily deviate from the route, thereby affecting the travel speed of the ship.
[0004] SUMMARY
[0005] Therefore, it is necessary to provide a resource supply system to solve the problem that the traditional resource replenishment method affects the travel speed of the ship.
[0006] The present application provides a resource supply system, which comprises:
[0007] a floating platform, the floating platform is arranged on the water surface;
[0008] a gas compression device, the gas compression device is arranged on the floating platform and has a first gas inlet and a first gas outlet in communication;
[0009] a gas expansion device, the gas expansion device is arranged on the floating platform and is electrically connected with a power supply device, the gas expansion device has a second gas inlet and a second gas outlet in communication, and the second gas outlet is used to discharge gas;
[0010] a first heat exchange device, the first heat exchange device is arranged on the floating platform and has a first inlet and a first outlet in communication, the first inlet is in communication with the first gas outlet, and the first outlet is in communication with the second gas inlet; and
[0011] a seawater distillation device, the seawater distillation device is capable of heat exchange with the first heat exchange device, and the seawater distillation device is used to communicate with a water supply device.
[0012] The resource supply system of the scheme, the gas enters the gas compression device through the first gas inlet, the gas compression device compresses the gas to obtain high-pressure gas, the gas compression device will make the high-pressure gas have a certain compression heat in the process of compressing the gas, the high-pressure gas with compression heat is discharged from the first gas outlet and enters the first heat exchange device through the first inlet, so that the compression heat of the high-pressure gas is transferred to the first heat exchange device, the first heat exchange device exchanges heat with the seawater distillation device again, so that the compression heat is transferred to the seawater distillation device and used for distilling seawater to obtain fresh water, the high-pressure gas after heat transfer in the first heat exchange device is discharged from the first outlet and enters the gas expansion device through the second gas inlet, the high-pressure gas expands in the gas expansion device and outputs external work and electrical energy to the power supply device, the floating platform can be arranged on the water to supply electrical energy to the passing ships through the power supply device, and supply fresh water to the passing ships through the water supply device; compared with the traditional technology, the above-mentioned resource supply system can generate fresh water resources and electrical energy resources on the floating platform to supply the passing ships on the water, so that the ships can obtain the supplement of electrical energy resources and fresh water resources without changing the route, and the speed of the ships will not be affected.
[0013] The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the application will be apparent from the description, drawings, and claims. BRIEF DESCRIPTION OF DRAWINGS
[0014] To better describe and illustrate the embodiments and / or examples of the present application, reference can be made to one or more drawings. Additional details or examples used to describe the drawings should not be considered as limiting the scope of any one of the disclosed applications, the presently described embodiments and / or examples, and the best mode presently understood of these applications.
[0015] Fig. 1 is a schematic diagram of the overall structure of the resource supply system according to an embodiment.
[0016] Fig. 2 is a schematic diagram of the working principle of the gas compression device and the gas expansion device according to an embodiment.
[0017] Fig. 3 is a schematic diagram of the structure of a part of the resource supply system according to an embodiment.
[0018] Fig. 4 is a schematic diagram of the structure of the compression heat exchange unit according to an embodiment.
[0019] Fig. 5 is a schematic diagram of the structure of another part of the resource supply system according to an embodiment.
[0020] Fig. 6 is a schematic diagram of the structure of the heat exchange expansion unit according to an embodiment.
[0021] Fig. 7 is a schematic diagram of the structure of the first heat exchange device according to an embodiment.
[0022] Fig. 8 is a schematic view of a second heat exchange device according to an embodiment.
[0023] Fig. 9 is a schematic view of a heating device according to an embodiment.
[0024] Legend of reference signs:
[0025] 100, gas compression device; 110, first gas inlet; 120, first gas outlet; 130, compression heat exchange unit; 200, gas expansion device; 210, second gas inlet; 220, second gas outlet; 230, heat exchange expansion unit; 240, low temperature expansion device; 250, refrigeration device; 251, ice making mechanism; 252, refrigeration mechanism; 300, first heat exchange device; 310, first refrigeration module; 311, first inlet; 312, first outlet; 320, first heating module; 321, second inlet; 322, second outlet; 400, seawater distillation device; 410, first valve body; 420, second valve body; 500, heat storage device; 510, heat inlet; 520, heat outlet; 600, cold storage device; 610, cold inlet; 620, cold outlet; 700, heating device; 710, heat exchange pipe section; 720, heating pipe section; 800, second heat exchange device; 810, second heating module; 811, third inlet; 812, third outlet; 820, second refrigeration module; 821, fourth inlet; 822, fourth outlet; 900, floating platform; 911, anchor chain; 912, anchor body; 920, gas storage device; 921, air inlet; 922, liquid inlet; 923, liquid outlet; 930, gas pipeline; 931, first gas sub-pipeline; 932, second gas sub-pipeline; 933, first valve; 934, second valve. DETAILED DESCRIPTION
[0026] For the purpose of promoting an understanding of the disclosure, the present application will now be described in greater detail with reference to the figures. The preferred embodiments of the present application are illustrated in the figures. However, the present application can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. It should be understood that these embodiments are provided for the purpose of illustrating the disclosure and are not intended to limit the scope of the disclosure.
[0027] In addition, the terms "first", "second", and the like, are used only for the purpose of description and should not be construed as indicating or implying relative importance or indicating the number or order of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.
[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application.
[0029] Referring to FIGS. 1-8, one embodiment of the present application provides a resource supply system, which includes a floating platform 900, a gas compression device 100, a gas expansion device 200, a first heat exchange device 300, and a seawater distillation device 400. The floating platform 900 is configured to be disposed on the water surface. The gas compression device 100 is disposed on the floating platform 900 and has a first gas inlet 110 and a first gas outlet 120 in communication. The gas expansion device 200 is disposed on the floating platform 900 and is configured to be electrically connected to a power supply device. The gas expansion device 200 has a second gas inlet 210 and a second gas outlet 220 in communication, and the second gas outlet 220 is configured to discharge gas. The first heat exchange device 300 is disposed on the floating platform 900 and has a first inlet 311 and a first outlet 312 in communication. The first inlet 311 is in communication with the first gas outlet 120, and the first outlet 312 is in communication with the second gas inlet 210. The seawater distillation device 400 is configured to exchange heat with the first heat exchange device 300 and is in communication with a water supply device.
[0030] In the above resource supply system, the gas enters the gas compression device 100 through the first gas inlet 110. The gas compression device 100 compresses the gas to obtain high-pressure gas. The high-pressure gas has a certain compression heat during the compression process. The high-pressure gas with the compression heat is discharged from the first gas outlet 120 and enters the first heat exchange device 300 through the first inlet 311, so that the compression heat of the high-pressure gas is transferred to the first heat exchange device 300. The first heat exchange device 300 exchanges heat with the seawater distillation device 400 to transfer the compression heat to the seawater distillation device 400 and use it to distill seawater to obtain fresh water. The high-pressure gas after the heat transfer in the first heat exchange device 300 is discharged from the first outlet 312 and enters the gas expansion device 200 through the second gas inlet 210. The high-pressure gas expands in the gas expansion device 200 to output external work and electrical energy to the power supply device. The floating platform 900 can be disposed on the water surface to supply electrical energy to passing ships through the power supply device and supply fresh water to the passing ships through the water supply device. Compared with the conventional technology, the above resource supply system can simultaneously generate fresh water resources and electrical energy resources on the floating platform 900 to supply the passing ships on the water surface, so that the ships can obtain the supply of electrical energy and fresh water without changing the route, which does not affect the travel speed of the ships.
[0031] As an explanation, the gas in the above embodiment can be air, the first gas inlet 110 of the gas expansion device 200 is in communication with the outside world to guide the air outside the world into the gas compression device 100 through the first gas inlet 110, the gas compression device 100 compresses the air to obtain high-pressure air with compression heat, the high-pressure air enters the first heat exchange device 300 from the first inlet 311 to transfer the compression heat of the high-pressure air to the seawater distillation device 400 through the first heat exchange device 300 and generate fresh water subsequently; it can be understood that the gas in the above embodiment can also be other kinds of gas other than air, which is not limited here.
[0032] The resource supply system further comprises a generator, the high-pressure gas enters the gas expansion device 200 through the second gas inlet 210, the high-pressure gas is expanded and decompressed in the gas expansion device 200 to output external work, and the generator converts this part of external work into electric energy and transmits it to the power supply device.
[0033] The seawater distillation device 400 can absorb the heat of the first heat exchange device 300 and use this part of heat to distill seawater to obtain fresh water.
[0034] In one embodiment, the resource supply system further comprises a storage supply device, the storage supply device is arranged on the floating platform 900, the electric energy resource generated by the gas expansion device 200 and the fresh water resource generated by the seawater distillation device 400 can be transmitted to the storage supply device for storage, the ship can be docked near the storage supply device, and the storage supply device can supplement the ship with electric energy and fresh water.
[0035] Please refer to FIG. 2 and FIG. 5, in one embodiment, the resource supply system further comprises a low-temperature expansion device 240 and a refrigeration device 250, the low-temperature expansion device 240 is provided with a third gas inlet and a cold energy outlet, the third gas inlet is in communication with the gas expansion device 200, the cold energy outlet is in communication with the refrigeration device 250, the low-temperature expansion device 240 transmits cold energy to the refrigeration device 250 through the cold energy outlet, and the refrigeration device 250 is in communication with the storage supply device.
[0036] The gas expanded by the gas expansion device 200 enters the low-temperature expansion device 240 to be expanded again, the low-temperature expansion device 240 expands the gas to form cold energy, and the cold energy is transmitted to the refrigeration device 250 from the cold energy outlet to be refrigerated subsequently, so as to realize efficient utilization of cold energy of the gas.
[0037] Further, please refer to FIG. 2 and FIG. 5, the refrigeration device 250 comprises an ice making mechanism 251 and a refrigeration mechanism 252, the ice making mechanism 251 is communicated with the cold energy outlet, the refrigeration mechanism 252 is communicated with the ice making mechanism 251; the cold energy discharged by the cold energy outlet firstly enters the ice making mechanism 251, the ice making mechanism 251 absorbs part of the cold energy for ice making, and the remaining cold energy is transmitted to the refrigeration mechanism 252 for refrigeration, so as to realize multi-stage and high-efficiency utilization of the cold energy.
[0038] Please refer to FIG. 2 and FIG. 3, in an embodiment, the resource supply system further comprises a heat storage device 500 and a cold storage device 600, the heat storage device 500 is used for storing a heat medium, the cold storage device 600 is used for storing a cold medium, the first heat exchange device 300 comprises a first refrigeration module 310 and a first heating module 320, the first refrigeration module 310 has a first inlet 311 and a first outlet 312 communicated, the first heating module 320 has a second inlet 321 and a second outlet 322 communicated, the first refrigeration module 310 can exchange heat with the first heating module 320, the cold storage device 600 is communicated with the second inlet 321, the heat storage device 500 is communicated with the second outlet 322, and the seawater distillation device 400 is provided with a distillation inlet and a distillation outlet communicated, the distillation inlet is communicated with the heat storage device 500, and the distillation outlet is communicated with the cold storage device 600.
[0039] The cold medium in the cold storage device 600 is discharged and enters the first heating module 320 through the second inlet 321, the high-pressure gas with compression heat enters the first refrigeration module 310 from the first inlet 311, the cold medium in the first heating module 320 can exchange heat with the high-pressure gas with compression heat in the first refrigeration module 310, so that the high-pressure gas transmits its compression heat to the cold medium, and the cold medium is converted into a heat medium, the heat medium is discharged from the second outlet 322 and enters the heat storage device 500, the heat medium in the heat storage device 500 is discharged and enters the seawater distillation device 400 through the distillation inlet, the seawater distillation device 400 absorbs the heat of the heat medium for distilling seawater and obtaining fresh water, then the heat medium is converted into a cold medium, and the cold medium is discharged from the distillation outlet and enters the cold storage device 600, so as to realize the circulation, so as to obtain fresh water resources; in this way, not only the fresh water resources can be effectively obtained, but also the cold medium and the heat medium can be reused, so as to save resources and be more environmentally friendly.
[0040] Please refer to FIG. 5, in an embodiment, the heat storage device 500 is provided with a heat storage cavity, a heat inlet 510 and a heat outlet 520 communicated, the cold storage device 600 is provided with a cold storage cavity, a cold inlet 610 and a cold outlet 620 communicated, the cold storage cavity is used for storing a cold medium, the cold outlet 620 is communicated with the second inlet 321, the second outlet 322 is communicated with the heat inlet 510, the heat outlet 520 is communicated with the distillation inlet, and the distillation outlet is communicated with the cold inlet 610.
[0041] The cold medium in the cold storage cavity is discharged from the cold outlet 620 and enters the first heat production module 320 through the second inlet 321, the high-pressure gas with compression heat enters the first refrigeration module 310 from the first inlet 311, the cold medium in the first heat production module 320 exchanges heat with the high-pressure gas with compression heat in the first refrigeration module 310, so that the high-pressure gas transfers its compression heat to the cold medium, so that the cold medium is converted into a hot medium, the hot medium is discharged from the second outlet 322 and enters the heat storage cavity through the heat inlet 510, the hot medium in the heat storage cavity is discharged from the heat outlet 520 and enters the seawater distillation device 400 from the distillation inlet, the hot medium transfers its heat to the seawater distillation device 400 to distill seawater and obtain fresh water, at this time, the heat of the hot medium is absorbed and converted into cold medium, the cold medium is discharged from the distillation outlet and enters the cold storage cavity through the cold inlet 610, and the cycle is repeated to obtain fresh water. By such arrangement, not only fresh water resources can be effectively obtained, but also the cold medium and the hot medium can be reused, resources are saved, and the environment is more friendly.
[0042] Optionally, the hot medium and the cold medium in the above-mentioned embodiments can be liquid heat exchange medium such as water and oil, or gas heat exchange medium, which is not limited here, and preferably, water is used as the heat exchange medium, which is low in cost, easy to supplement and reliable in heat exchange effect.
[0043] As an explanation, the heat inlet 510 in the above-mentioned embodiments represents a port for entering the hot medium, the heat outlet 520 represents a port for discharging the hot medium, the cold outlet 620 represents a port for discharging the cold medium, and the cold inlet 610 represents a port for entering the cold medium.
[0044] Please refer to FIG. 5, in an embodiment, the resource supply system further comprises a second heat exchange device 800, the second heat exchange device 800 is provided with a third inlet 811 and a third outlet 812 in communication, the third inlet 811 is in communication with the first outlet 312, the third outlet 812 is in communication with the second air inlet 210, the second heat exchange device 800 is in communication with the heat outlet 520 and can exchange heat with the hot medium.
[0045] The high-pressure gas with compression heat compressed by the gas compression device 100 has its temperature reduced after passing through the first refrigeration module 310, and the gas with reduced temperature is discharged from the first outlet 312 and enters the second heat exchange device 800 from the third inlet 811. The heat storage device 500 can transfer the heat of the heat storage medium in the heat storage cavity to the second heat exchange device 800 to heat the gas in the second heat exchange device 800. The pressure of the heated gas becomes larger, and the gas with increased pressure is discharged from the third outlet 812 and enters the gas expansion device 200 from the second gas inlet 210. The gas with increased pressure expands and depressurizes in the gas expansion device 200 to output more external work, so that the gas expansion device 200 can generate more electric energy and improve the power generation efficiency.
[0046] Further, the heat storage device 500 can exchange heat with the second heat exchange device 800 to transfer the heat of the heat medium in the heat storage cavity to the gas in the second heat exchange device 800. The pressure of the heated gas in the second heat exchange device 800 becomes larger, and the gas with increased pressure expands and depressurizes in the gas expansion device 200 to output more external work, thereby generating more electric energy and improving the power generation efficiency.
[0047] Please refer to FIG. 5. In one embodiment, the second heat exchange device 800 further includes a second heating module 810 and a second refrigeration module 820. The second heating module 810 has a third inlet 811 and a third outlet 812 in communication. The second refrigeration module 820 has a fourth inlet 821 and a fourth outlet 822 in communication. The second heating module 810 and the second refrigeration module 820 can exchange heat. The fourth inlet 821 is in communication with the heat outlet 520, and the fourth outlet 822 is in communication with the distillation inlet.
[0048] The heat medium in the heat storage cavity is discharged from the heat outlet 520 and enters the second refrigeration module 820 through the fourth inlet 821. The low-temperature gas after heat exchange by the first refrigeration module 310 is discharged from the first outlet 312 and enters the second heating module 810 from the third inlet 811. The low-temperature gas in the second heating module 810 exchanges heat with the heat medium in the second refrigeration module 820, so that the heat medium transfers its heat to the low-temperature gas. The pressure of the heated low-temperature gas becomes larger, and the gas with increased pressure is discharged from the third outlet 812 and enters the gas expansion device 200. The gas with increased pressure expands and depressurizes in the gas expansion device 200 to output more external work, so that the gas expansion device 200 can generate more electric energy and improve the power generation efficiency.
[0049] In one embodiment, the seawater distillation device 400 is a low-temperature multi-effect distillation seawater desalination device, the boiling point of seawater decreases with the decrease of pressure, each pressure corresponds to a boiling point, the internal pressure of the low-temperature multi-effect distillation seawater desalination device is smaller, therefore, when the seawater is in the low-temperature multi-effect distillation seawater desalination device, the boiling point is also lower, and the temperature required for distillation is also lower. When the heat medium transfers part of the heat to the low-temperature gas in the second heat exchange device 800, the heat medium enters the low-temperature multi-effect distillation seawater desalination device, and distills the seawater by using the remaining part of the heat of the heat medium to obtain fresh water. The distillation temperature required by the low-temperature multi-effect distillation seawater desalination device is lower, so even if the heat remaining in the heat medium is not much, it can still distill seawater, thereby improving the utilization rate of heat in the heat medium and the distillation efficiency.
[0050] Further, the principle of the low-temperature multi-effect distillation seawater desalination device is to use the secondary steam generated by distillation as heating steam to heat the feed liquid of the next effect. The feed liquid is evaporated in the next-effect evaporator with lower pressure and boiling point, generating new secondary steam, which continuously heats and evaporates in the next-effect evaporator, so that the heat energy consumed by evaporation is fully reused to reduce energy consumption. For multi-effect distillation, the heat source of the first effect is fresh steam, the next effect acts as a condenser of the previous effect, and the steam generated by the previous effect is condensed in the next effect, thereby improving the distillation efficiency and energy utilization rate.
[0051] Please refer to FIG. 5 and FIG. 9, in one embodiment, the resource supply system further comprises a heating device 700, the heating device 700 is provided with a heat exchange pipe section 710 and a heating pipe section 720, one end of the heat exchange pipe section 710 is in communication with the distillation outlet or / and the fourth outlet 822, the other end of the heat exchange pipe section 710 is in communication with the cold inlet 610, and the heating pipe section 720 can exchange heat with the heat exchange pipe section 710.
[0052] The heat medium can be discharged from the fourth outlet 822 or / and the distillation outlet and enter the heat exchange pipe section 710, the heat medium in the heat exchange pipe section 710 can exchange heat with the heating pipe section 720 to transfer the heat of the heat medium to the heating pipe section 720, thereby achieving heating. The heat medium becomes cold medium after heat exchange, and is discharged from the heat exchange pipe section 710 and enters the cold storage cavity of the cold storage device 600 from the cold inlet 610. In this way, the energy utilization rate of the heat medium can be further improved.
[0053] Further, please refer to FIG. 9, the axial direction of the heat exchange pipe section 710 is arranged to be spaced apart from the axial direction of the heating pipe section 720. When the heat medium flows through the heat exchange pipe section 710, it exchanges heat with the heating medium in the heating pipe section 720 to transfer the heat of the heat medium to the heating medium, thereby achieving heating.
[0054] Optionally, the extension shape of the heat exchange pipe section 710 and the heating pipe section 720 can be linear or curved, and the heat exchange pipe section 710 and the heating pipe section 720 can also be wound around each other to improve the heat exchange efficiency.
[0055] In one embodiment, referring to FIG. 5, the heat exchange pipe section 710 is provided with a first branch and a second branch at one end away from the cold inlet 610. The heat exchange pipe section 710 is communicated with the fourth outlet 822 through the first branch, and the heat exchange pipe section 710 is communicated with the distillation outlet through the second branch to realize the parallel connection between the heating device 700 and the seawater distillation device 400. The first branch is provided with a first valve body 410, and the distillation inlet and the fourth outlet 822 are provided with a second valve body 420. When the first valve body 410 is opened and the second valve body 420 is closed, the hot medium discharged from the fourth outlet 822 is only used for heating of the heating device 700, and the heating effect is better. When the second valve body 420 is opened and the first valve body 410 is closed, the hot medium first enters the seawater distillation device 400 from the distillation inlet, and then is discharged from the distillation outlet and enters the heating device 700, thereby realizing the double effect of distillation and heating.
[0056] Referring to FIG. 4, in one embodiment, the gas compression device 100 and the first heat exchange device 300 are each provided with at least two and are one-to-one correspondingly arranged. The gas compression device 100 and the first heat exchange device 300 are alternately arranged, and each adjacent gas compression device 100 and first heat exchange device 300 are matched to form a compression heat exchange unit 130. The first outlet 312 of the former compression heat exchange unit 130 is communicated with the first gas inlet 110 of the latter compression heat exchange unit 130.
[0057] By arranging at least two compression heat exchange units 130, the gas can be compressed in multiple stages, and the compressed gas can be subjected to multiple stages of heat absorption. In this way, the gas can have a greater pressure to release more external work for power generation in the subsequent stage, and more compression heat of the gas can be absorbed for distilling seawater, thereby further improving the power generation and freshwater generation efficiency.
[0058] In the embodiment shown in FIG. 4, the compression heat exchange unit 130 is provided with three compression heat exchange units 130, which are a first compression heat exchange unit 130, a second compression heat exchange unit 130, and a third compression heat exchange unit 130. The first gas inlet 110 of the first compression heat exchange unit 130 is used to introduce gas. After the gas is compressed and heat exchanged by the first compression heat exchange unit 130, the gas enters the gas compression device 100 of the second compression heat exchange unit 130 from the first gas inlet 110 of the second compression heat exchange unit 130. After the gas is compressed and heat exchanged by the second compression heat exchange unit 130, the gas enters the gas compression device 100 of the third heat exchange unit from the first gas inlet 110 of the third compression heat exchange unit 130. Finally, the gas is discharged from the first outlet 312 of the third compression heat exchange unit 130.
[0059] For example, when the compression heat exchange unit 130 is provided with other numbers, similar to the above embodiment, details are not repeated here.
[0060] As an embodiment that can be implemented simultaneously with the above embodiment, referring to FIG. 6, the second heat exchange device 800 and the gas expansion device 200 are each provided with at least two and are arranged one by one in correspondence. The second heat exchange device 800 and the gas expansion device 200 are arranged alternately, and each adjacent second heat exchange device 800 and gas expansion device 200 form a heat exchange expansion unit 230. The second gas outlet 220 of the former heat exchange expansion unit 230 is in communication with the third inlet 811 of the latter heat exchange expansion unit 230.
[0061] By providing at least two heat exchange expansion units 230, the gas can be heated in multiple stages, and the heated gas can be expanded in multiple stages. In this way, the gas can have a greater pressure to release more external work for power generation, thereby improving the power generation efficiency.
[0062] In the embodiment shown in FIG. 6, the heat exchange expansion unit 230 is provided with three, which are the first heat exchange expansion unit 230, the second heat exchange expansion unit 230, and the third heat exchange expansion unit 230. The third inlet 811 of the first heat exchange expansion unit 230 is used to introduce low-temperature gas. After the gas is heat-exchanged and expanded by the first heat exchange expansion unit 230, it enters the second heat exchange device 800 of the second heat exchange expansion unit 230 from the third inlet 811 of the second heat exchange expansion unit. After being heat-exchanged and expanded by the second heat exchange expansion unit 230, it enters the second heat exchange device 800 of the third heat exchange expansion unit 230 from the third inlet 811 of the third heat exchange expansion unit 230. Finally, it is discharged from the second gas outlet 220 of the third heat exchange expansion unit 230.
[0063] For example, when the heat exchange expansion unit 230 is provided with other numbers, similar to the above embodiment, details are not repeated here.
[0064] Referring to FIG. 1, in an embodiment, the resource supply system further includes a gas storage device 920 and a gas delivery pipeline 930. The gas storage device 920 is arranged on the side of the floating platform 900 facing the water surface. The gas storage device 920 is provided with a communication gas storage cavity and a gas inlet 921. One end of the gas delivery pipeline 930 is in communication with the gas inlet 921. The other end of the gas delivery pipeline 930 is provided with a first gas delivery branch 931 and a second gas delivery branch 932. The first gas delivery branch 931 is in communication with the first outlet 312, and the second gas delivery branch 932 is in communication with the third inlet 811.
[0065] The gas is compressed by the gas compression device 100, is exchanged by the first heat exchange device 300, and is discharged from the first outlet 312. The gas discharged from the first outlet 312 can enter the gas conveying pipeline 930 through the first gas conveying branch 931 and enter the gas storage cavity of the gas storage device 920 through the gas inlet 921. When power generation is required, the gas in the gas storage cavity enters the gas conveying pipeline 930 from the gas inlet 921 and enters the second heat exchange device 800 through the second gas conveying branch 932 and the third inlet 811. The second heat exchange device 800 heats the gas, and the gas enters the gas expansion device 200 from the third outlet 812 for subsequent power generation. By arranging the gas storage device 920, the pressurized gas can be collected, and when electricity is required, the second heat exchange device 800 and the gas expansion device 200 are used for power generation, thereby improving the use flexibility of the resource supply system. In addition, the gas storage device 920 is arranged on the side of the floating platform 900 facing the water surface, so that the space of the floating platform 900 can be fully utilized, and the cost is reduced.
[0066] Please refer to FIG. 1. In an embodiment, the gas storage device 920 is also provided with a liquid inlet 922 and a liquid outlet 923, both of which are in communication with the gas storage cavity.
[0067] When there is no gas in the gas storage cavity, the liquid enters the gas storage cavity through the liquid inlet 922 under the action of atmospheric pressure. After the gas is compressed by the gas compression device 100, it has a certain pressure. The gas with pressure enters the gas storage cavity through the gas conveying pipeline 930 and the gas inlet 921. Since the density of the gas is less than that of the liquid in the gas storage cavity, as the gas continuously fills the gas storage cavity from the gas inlet 921, the water in the gas storage cavity is gradually driven out from the liquid outlet 923 by the gas. Since the surrounding liquid also has a certain pressure, the gas filled into the gas storage cavity also has a certain pressure. When power generation is required, the gas with a certain pressure in the gas storage cavity enters the second heat exchange device 800 through the gas conveying pipeline 930. The second heat exchange device 800 heats the gas to further increase the pressure of the gas. Subsequently, the gas enters the gas expansion device 200 to do work and generate electricity. Such an arrangement has low implementation cost and good energy storage effect. The constant pressure energy storage and constant pressure energy release are realized by using the gas-water mutual driving, the residual gas amount in the gas storage cavity is reduced, and the circulation efficiency of the entire system is improved.
[0068] Further, the diameters and lengths of the liquid inlet 922 and the liquid outlet 923 are determined according to the gas charging and discharging time to ensure that the effective volume of the gas storage cavity is fully utilized.
[0069] Please refer to FIG. 1. In an embodiment, the gas storage device 920 adopts a horizontally placed cylindrical gas tank, which has good pressure bearing performance, low cost, and is easy to move in water.
[0070] In one embodiment, the gas pipeline 930 adopts a flexible pressure-bearing pipe to better adapt to the relative movement between the floating platform 900 and the gas storage device 920.
[0071] Referring to FIG. 2, in one embodiment, the first gas pipeline branch 931 is provided with a first valve 933 for controlling the opening and closing of the first gas pipeline branch 931.
[0072] As an embodiment that can be implemented simultaneously with the above embodiment, the second gas pipeline branch 932 is provided with a second valve 934 for controlling the opening and closing of the second gas pipeline branch 932.
[0073] The first valve 933 and the second valve 934 can respectively control the opening and closing of the first gas pipeline branch 931 and the second gas pipeline branch 932 to control the flow path of the gas, when it is needed to introduce the compressed gas into the gas storage device 920, the first valve 933 is opened and the second valve 934 is closed, when it is needed to discharge the gas in the gas storage device 920 to the second heat exchange device 800, the first valve 933 is closed and the second valve 934 is opened; in this way, the operation is convenient and the implementation cost is low.
[0074] Referring to FIG. 1, in one embodiment, the resource supply system further comprises an anchor chain 911 and an anchor body 912, one end of the anchor chain 911 is connected with the floating platform 900, and the other end of the anchor chain 911 is connected with the anchor body 912.
[0075] The anchor body 912 is connected with the floating platform 900 through the anchor chain 911, and is sunk into the bottom of the water and hooked on the soil or sandstone of the bottom of the water by the weight of the anchor body 912 itself, thereby stabilizing the floating platform 900 floating on the water surface.
[0076] Further, the gas storage tank is connected with the floating platform 900 through the mooring rope.
[0077] The resource supply system is first assembled and debugged in a coastal shipyard, the floating platform 900 can float on the water surface, and is transported to a designated position by a tugboat or the like to supply resources to a ship or the like passing near the position; the position of the resource supply system can be moved and adjusted as needed, and the process is convenient; when moving, the gas in the gas storage device 920 needs to be used up or discharged first, then the anchor body 912 is recovered through the anchor chain 911, and the gas storage device 920 is recovered through the mooring rope, so as to move the floating platform 900.
[0078] Further, after the resource supply system moves to the designated position, a wind power generation device or / and a marine photovoltaic power generation device needs to be connected to supply power to each device in the resource supply system.
[0079] In one embodiment, the floating platform 900 is also provided with a rotating winding and unwinding mechanism, one end of the anchor chain 911 away from the anchor body 912 is arranged around the rotating winding and unwinding mechanism, the rotating winding and unwinding mechanism can rotate to wind and unwind the anchor chain 911 arranged around the rotating winding and unwinding mechanism, thereby realizing winding and unwinding of the anchor body 912. When it is necessary to move the floating platform 900, the rotating winding and unwinding mechanism is rotated to wind the anchor chain 911 and the anchor body 912, and after the floating platform 900 is moved to a specified position, the rotating winding and unwinding mechanism is reversely rotated to unwind the anchor chain 911 and the anchor body 912, so as to stabilize the floating platform 900.
[0080] Optionally, referring to FIG. 1, the anchor chain 911 can be arranged on the floating platform 900 or the gas storage device 920, which is not limited here.
[0081] Further, the anchor body 912 is provided with a distance measuring sensor for monitoring the distance between the anchor body 912 and the water bottom. Since the water bottom can be uneven, the distance between the anchor body 912 and the water bottom is monitored by arranging the distance measuring sensor on the anchor body 912, so that when the anchor body 912 contacts the water bottom, the staff immediately stops the rotating winding and unwinding mechanism from unwinding the anchor chain 911, preventing the anchor chain 911 from being unwound too long to contact the water bottom, and avoiding the phenomenon of wear or mutual entanglement of the anchor chain 911.
[0082] In one embodiment of the present application, the gas storage device 920 is arranged at a water depth of 500 m, the gas compression device 100 has a power of 200 MW, and the energy storage capacity is 1000 MWh. The gas compression device 100 compresses the normal pressure gas to 5 MPa and stores it in the underwater gas storage device 920 through the gas pipeline 930. During the storage process, the air density is less than water, and as the gas is continuously filled, the water in the gas storage cavity is gradually driven out by the gas. Since the static pressure of water at 500 m underwater is about 5 MPa, the gas storage pressure of the energy storage process is constant at 5 MPa. The compression heat generated by the gas compression device 100 is recovered by the first heat exchange device 300 and water, and the hot water temperature reaches 170℃, which is then stored in the heat storage device 500.
[0083] When energy is released, the high-pressure gas of 5 MPa in the gas storage cavity of the gas storage device 920 is released from the gas pipeline 930 to drive the gas expansion device 200 to generate power. Since the static pressure of water at 500 m underwater is about 5 MPa, the water drives the gas during the energy release process, and the release pressure of the gas is constant at 5 MPa. The high-pressure gas released from the gas storage cavity has a low temperature of 10-30℃. The air with a low temperature is heated to about 140℃ by the hot water released by the heat storage device 500 through the second heat exchange device 800 and enters the gas expansion device 200 to do work. Similarly, when the gas expansion device 200 is provided with multiple gas expansion devices, multiple second heat exchange devices 800 are also used for heating and then entering the corresponding gas expansion devices 200 to generate power.
[0084] The heat storage device 500 collects the 170℃ hot water, and the temperature of the hot water is reduced to 75℃ after the hot water passes through the second heat exchange device 800. The 75℃ hot water can be directly introduced into the seawater distillation device 400 to produce fresh water. The 75℃ hot water can also be directly introduced into the heating device 700 to produce 60℃ hot water for heating. The seawater distillation device 400 and the heating device 700 can be connected in series, can be connected in parallel, or can be connected in series and parallel at the same time. The 75℃ hot water is reasonably distributed between the seawater distillation device 400 and the heating device 700, and the distribution is mainly determined according to the demand for fresh water and heat load.
[0085] Part of the gas introduced from the second gas expansion device 200 is introduced into the low-temperature expansion device 240. The low-temperature expansion device 240 can generate-30℃ low-temperature gas while generating electricity. The-30 to-15℃ low-temperature gas is used to produce ice, and the-15 to 0℃ gas is used to produce 7 / 14℃ cold water. The capacity of the ice production mechanism 251 and the cold production mechanism 252 is designed according to the demand.
[0086] In addition, the various devices in the above embodiments can be connected through different pipelines. The connection mode of the pipelines is shown in FIG. 1. Those skilled in the art can understand that other connection modes can also be used to connect the various devices, which are not specifically limited here.
[0087] The technical features of the above embodiments can be combined in any way. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described. However, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.
[0088] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed. However, it should not be understood as a limitation on the scope of the patent application. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are all within the scope of the present application. Therefore, the scope of the patent of the present application should be subject to the appended claims, and the description and drawings can be used to explain the content of the claims.
Claims
1. A resource supply system, comprising: a floating platform configured to be disposed on a water surface; a gas compression device configured to be disposed on the floating platform and having a first gas inlet and a first gas outlet in communication; a gas expansion device configured to be disposed on the floating platform and electrically connected to a power supply device, the gas expansion device having a second gas inlet and a second gas outlet in communication, the second gas outlet configured to discharge gas; a first heat exchange device configured to be disposed on the floating platform and having a first inlet and a first outlet in communication, the first inlet in communication with the first gas outlet, and the first outlet in communication with the second gas inlet; and a seawater distillation device capable of exchanging heat with the first heat exchange device, the seawater distillation device configured to be in communication with a water supply device.
2. The resource provisioning system of claim 1, wherein, The resource supply system further comprises a heat storage device configured to store a heat medium and a cold storage device configured to store a cold medium, the first heat exchange device comprises a first refrigeration module having the first inlet and the first outlet in communication and a first heating module having a second inlet and a second outlet in communication, the first refrigeration module is capable of exchanging heat with the first heating module, the cold storage device is in communication with the second inlet, the heat storage device is in communication with the second outlet, the seawater distillation device is provided with a distillation inlet and a distillation outlet in communication, the distillation inlet is in communication with the heat storage device, and the distillation outlet is in communication with the cold storage device.
3. The resource provisioning system of claim 2, wherein, The heat storage device is provided with a heat storage cavity, a heat inlet and a heat outlet in communication, and the cold storage device is provided with a cold storage cavity, a cold inlet and a cold outlet in communication, the heat storage cavity is configured to store the heat medium, and the cold storage cavity is configured to store the cold medium, the cold outlet is in communication with the second inlet, the second outlet is in communication with the heat inlet, the heat outlet is in communication with the distillation inlet, and the distillation outlet is in communication with the cold inlet.
4. The resource provisioning system of claim 3, wherein, The resource supply system further comprises a second heat exchange device provided with a third inlet and a third outlet in communication, the third inlet is in communication with the first outlet, and the third outlet is in communication with the second gas inlet, the second heat exchange device is in communication with the heat outlet and capable of exchanging heat with the heat medium.
5. The resource provisioning system of claim 4, wherein, The second heat exchange device further comprises a second heating module having the third inlet and the third outlet in communication and a second refrigeration module having a fourth inlet and a fourth outlet in communication, the second heating module is capable of exchanging heat with the second refrigeration module, the fourth inlet is in communication with the heat outlet, and the fourth outlet is in communication with the distillation inlet.
6. The resource provisioning system of claim 5, wherein, The resource supply system further comprises a heating device provided with a heat exchange pipe section and a heating pipe section, one end of the heat exchange pipe section is in communication with the distillation outlet or / and the fourth outlet, the other end of the heat exchange pipe section is in communication with the cold inlet, and the heating pipe section is capable of exchanging heat with the heat exchange pipe section.
7. The resource provisioning system of claim 4, wherein, The gas compression device and the first heat exchange device are provided with at least two and are one-to-one correspondingly arranged, the gas compression device and the first heat exchange device are one-to-one alternately arranged, each adjacent gas compression device and the first heat exchange device are matched to form a compression heat exchange unit, the first outlet of the previous compression heat exchange unit is communicated with the first gas inlet of the next compression heat exchange unit; or / and, The second heat exchange device and the gas expansion device are provided with at least two and are one-to-one correspondingly arranged, the second heat exchange device and the gas expansion device are one-to-one alternately arranged, each adjacent second heat exchange device and the gas expansion device are matched to form a heat exchange expansion unit, the second gas outlet of the previous heat exchange expansion unit is communicated with the third inlet of the next heat exchange expansion unit.
8. The resource provisioning system of claim 4, wherein, The resource supply system further comprises a gas storage device and a gas pipeline, the gas storage device is arranged on the side of the floating platform facing the water surface, the gas storage device is provided with a gas storage cavity and a gas inlet, one end of the gas pipeline is communicated with the gas inlet, the other end of the gas pipeline is provided with a first gas sub-pipeline and a second gas sub-pipeline, the first gas sub-pipeline is communicated with the first outlet, and the second gas sub-pipeline is communicated with the third inlet.
9. The resource provisioning system of claim 8, wherein, The gas storage device is further provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are communicated with the gas storage cavity.
10. The resource provisioning system of claim 1, wherein, The resource supply system further comprises an anchor chain and an anchor body, one end of the anchor chain is connected with the floating platform, and the other end of the anchor chain is connected with the anchor body.