Skid-mounted comprehensive energy conservation and supply system based on liquefied natural gas

By designing a skid-mounted integrated energy supply system based on liquefied natural gas, the problem of single function of emergency equipment has been solved, and multiple energy supplies such as cold, heat, electricity and gas have been realized, which is suitable for rapid response and multi-energy complementarity in remote areas.

CN120684651APending Publication Date: 2025-09-23HARBIN PUFA NEW ENERGY EQUIP TECH CO LTD +1
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Patent Information

Application Number
CN202510909784.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-02
Publication Date
2025-09-23

AI Technical Summary

Technical Problem

Existing emergency energy equipment has a single function and cannot meet the comprehensive demand for multiple energy sources such as cold, heat, electricity and gas in emergency situations. In addition, energy supply is difficult in remote areas.

Method used

Design a skid-mounted integrated energy supply system based on liquefied natural gas, which includes components such as gas turbines, gas generators, air-heated heaters, cold storage heaters, etc., and provides a comprehensive supply of multiple energy sources such as cold, heat, electricity, and gas through liquefied natural gas.

Benefits of technology

It realizes the supply of multiple energy sources such as cold, heat, electricity and gas in emergency situations. It is suitable for remote areas and has the emergency guarantee capabilities of rapid response and multi-energy complementarity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a skid-mounted comprehensive energy conservation and supply system based on liquefied natural gas. A gas storage tank in the system is connected with a gas supply port; the gas storage tank is connected with a gas-fired boiler, and an outlet of the gas-fired boiler is connected with a first heat supply port. The gas storage tank is connected with the gas turbine and the gas generator, and the gas generator is connected with a power supply port; the vaporizer and the wind-heat heater are arranged in parallel, a heating coil is arranged in a shell of the vaporizer, and the heating coil, the wind-heat heater and a connecting pipeline of the heating coil and the wind-heat heater form a wind-heat heating circulation loop; a cold release coil pipe, a heat release coil pipe and a cold supply coil pipe are arranged in a shell of the cold storage type heater, a cold storage type heating circulation loop is formed by the heating coil pipe, the cold release coil pipe and a connecting pipeline of the heating coil pipe and the cold release coil pipe, and the cold supply coil pipe is connected with a first cold supply port; the system uses the vaporizer for cooling; the gas-fired boiler is used for supplying heat; the gas storage tank is used for directly supplying gas; the gas turbine gas generator is used for generating electricity, and skid-mounted cold, heat, electricity and gas comprehensive energy efficient supply is achieved.
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Description

Technical Field

[0001] The present invention relates to the technical field of liquefied natural gas energy equipment, and in particular to a skid-mounted integrated energy supply system based on liquefied natural gas. Background Art

[0002] With the acceleration of urbanization, cities are becoming increasingly dependent on energy security. A stable supply of comprehensive energy—cooling, heating, electricity, and gas—has become crucial for ensuring the normal operation of cities. However, the current urban energy supply system faces numerous challenges. For one thing, frequent force majeure events such as extreme weather, equipment failures, and emergencies pose a significant threat to urban energy supply. A disruption in energy supply can severely impact residents' lives, commercial operations, public services, and other areas, even jeopardizing urban safety and stability. For example, severe weather conditions such as heavy rain and snow can damage power facilities, leading to widespread blackouts. Gas pipeline leaks and other incidents can disrupt gas supply, impacting residents' daily cooking and heating needs.

[0003] When it comes to ensuring emergency power supply, existing emergency energy equipment often has a single function, making it difficult to meet the comprehensive energy needs of cities in emergencies for cooling, heating, electricity, and gas. Traditional emergency power generation equipment only provides electricity, failing to provide heating, cooling, and gas, making it impossible to form a complete, multi-energy complementary emergency support system. Furthermore, the transportation, installation, and commissioning of this emergency equipment are often complex and time-consuming, making it difficult to quickly respond and put it into operation, thus failing to meet the demand for timely energy supply in emergencies.

[0004] On the other hand, energy supply issues have always been more prominent in remote areas due to their remote locations and weak infrastructure. Conventional energy transmission pipelines are difficult to cover these areas.

[0005] To sum up, the development of a skid-mounted integrated energy emergency supply system that can realize emergency supply of cold, heat, electricity and gas, and is suitable for multi-energy supply in remote areas, has important practical significance and urgent needs. It has significant value in improving the city's energy emergency guarantee capabilities and improving the energy supply situation in remote areas. Summary of the Invention

[0006] The present invention aims to provide a skid-mounted integrated energy supply system based on liquefied natural gas (LNG). This system addresses the technical problem of existing emergency energy equipment, which is limited in functionality and unable to meet the comprehensive energy needs of regions requiring cooling, heating, electricity, and gas in emergency situations. The various technical benefits of the preferred solution among the various technical solutions provided by this invention are detailed below.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] The present invention provides a skid-mounted integrated energy supply system based on liquefied natural gas, comprising a skid-mounted shell, a gas turbine, a gas generator, an air-heated heater, a cold storage heater, and an LNG storage tank, an LNG pump, a vaporizer, and a gas storage tank connected in sequence along the gas flow direction, wherein:

[0009] One of the outlet branches of the gas storage tank is connected to a gas supply port;

[0010] A gas boiler is connected to another outlet branch of the gas storage tank, and the outlet of the gas boiler is connected to a heating port 1;

[0011] Another gas outlet of the gas storage tank is connected to the gas turbine and the gas generator, and the gas generator is connected to a power supply port;

[0012] The vaporizer is arranged in parallel with the air-heating heater, a heating coil is arranged in the shell of the vaporizer, and the heating coil, the air-heating heater and its connecting pipeline form an air-heating heating circulation loop; the shell of the cold storage heater is provided with a cold-releasing coil, a heat-releasing coil and a cold-supply coil, the heat-releasing coil is connected to a heat source, the heating coil, the cold-releasing coil and its connecting pipeline form a cold-storage heating circulation loop, and the cold-supply coil is connected to a cold-supply port 1;

[0013] The gas supply port, the first heating port, the power supply port and the first cooling port are all arranged on the skid-mounted shell.

[0014] Preferably, the skid-mounted integrated energy supply system based on liquefied natural gas further includes a flue gas exhaust port, and the wind-heated heater includes an induced draft fan and a heat exchange pipe, wherein:

[0015] The flue gas outlet is arranged toward the induced draft fan, the heating coil and the heat exchange tube form the wind-heat heating circulation loop, and the induced draft fan blows the high-temperature flue gas discharged from the flue gas outlet toward the heat exchange tube.

[0016] Preferably, the skid-mounted integrated energy supply system based on liquefied natural gas further includes a thermal storage cooler, a waste heat recovery device, a steam turbine, a steam generator, and a condenser, wherein:

[0017] An evaporation coil is provided in the shell of the thermal storage cooler, a preheating coil is provided in the waste heat recovery device, the condenser, the preheating coil, the evaporation coil, and the steam turbine are sequentially connected along the flow direction of the organic working medium, and the steam outlet of the steam turbine is connected to the steam generator, thereby forming an organic Rankine cycle power generation circuit;

[0018] The steam generator is connected to the power supply port;

[0019] A condensing coil is provided in the shell of the condenser, and the condensing coil is used for exchanging heat with the organic working medium in the shell of the condenser.

[0020] Preferably, the flue gas outlet of the gas turbine is connected to the thermal storage cooler and the waste heat recovery device in sequence, and the flue gas of the gas turbine is used to exchange heat with the evaporator coil and the preheating coil.

[0021] Preferably, the outlet of the waste heat recovery device is connected to a flue gas exhaust port, and the flue gas exhaust port is arranged toward the wind-heated heater.

[0022] Preferably, the condensing coil is connected to the heat releasing coil, and the condensing coil, the heat releasing coil and the refrigerant pump on the connecting pipeline form a condensing and heat releasing circulation loop.

[0023] Preferably, a heating coil is further provided in the shell of the thermal storage cooler, wherein:

[0024] The heating coil is located on the opposite side of the evaporation coil, and the heating coil is communicated with the second heating port on the skid-mounted shell.

[0025] Preferably, a heat absorbing coil is further provided in the shell of the thermal storage cooler, and the heat absorbing coil and the heating coil are located on the same side of the thermal storage cooler and are arranged at intervals along the length direction of the thermal storage cooler;

[0026] The heat absorbing coil is connected to an absorption refrigerator, and the absorption refrigerator is connected to the second cooling port on the skid-mounted shell.

[0027] Preferably, the gas generator is electrically connected to a transformer, one of the AC branches of the transformer is electrically connected to the power supply port, and the other AC branch is electrically connected to an input converter and an energy storage battery module in sequence, and the energy storage battery module is electrically connected to an output-input converter, and the output-input converter supplies DC or AC power to the power supply port.

[0028] Preferably, an inlet three-way valve and an outlet three-way valve are connected at the intersection of the wind-heating heating circulation loop and the cold storage heating circulation loop, and the inlet three-way valve and the outlet three-way valve are respectively located at the inlet pipe section and the outlet pipe section of the heating coil.

[0029] The skid-mounted integrated energy supply system based on liquefied natural gas provided by the present invention has the following beneficial effects compared with the existing technology:

[0030] The gas tank provides gas to the gas supply port, and the gas tank is connected to the gas turbine and gas generator to provide electricity to the power supply port; the gas tank and the gas boiler provide heat to the heating port one; the air-heating heater can heat the circulating heat exchange medium in the heating coil through the air-heating heating circulation loop, and release the condensation heat in the cooling coil, etc. to heat the circulating heat exchange medium in the heating coil through the cold storage heating circulation loop, and the heating port one on the skid-mounted shell provides heat to the outside world; the above-mentioned skid-mounted comprehensive energy supply system based on liquefied natural gas can use liquefied natural gas to provide cold, heat, electricity and gas at the same time, with diversified functions, which solves the problem of comprehensive energy emergency supply under the conditions of regional cold, heat, electricity and gas multiple energy failures and the supply demand of multiple energy in remote areas, and has the outstanding advantages of a variety of cold, heat, electricity and gas comprehensive energy supply types to meet the needs of various energy loads. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 This is a schematic diagram of a skid-mounted integrated energy supply system based on liquefied natural gas;

[0033] Figure 2 It is a schematic diagram of the wind heat heating cycle;

[0034] Figure 3 It is a schematic diagram of a cold storage heating cycle;

[0035] Figure 4 This is a schematic diagram of an organic Rankine cycle power generation cycle based on a thermal storage cooler;

[0036] Figure 5 It is a schematic diagram of the condensation heat release cycle.

[0037] In the figure, 1. LNG storage tank; 2. LNG pump; 3. Vaporizer; 4. Gas storage tank; 5. Gas turbine; 6. Thermal storage cooler; 7. Waste heat recovery device; 8. Flue gas outlet; 9. Air-heat heater; 91. Induced draft fan; 92. Heat exchange pipe; 10. Inlet three-way valve; 11. Outlet three-way valve; 12. Heat exchange pump; 13. Cold storage heater; 14. Gas generator; 15. Transformer; 16. Input converter; 17. Energy storage battery module; 18. Output and input converter; 19. Steam turbine; 20. Steam generator. 21. Condenser; 22. Organic fluid pump; 23. Absorption chiller; 24. Refrigerant pump; 25. Gas boiler; 26. Skid-mounted shell; 31. Heating coil; 61. Evaporating coil; 62. Absorbing coil; 63. Heating coil; 71. Preheating coil; 131. Cooling coil; 132. Heat coil; 133. Cooling coil; 211. Condensing coil; 261. Cooling port 1; 262. Cooling port 2; 263. Heating port 1; 264. Heating port 2; 265. Gas supply port; 266. Power supply port. DETAILED DESCRIPTION

[0038] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be understood that the terms "center," "length," "width," "height," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and "side" and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0040] The embodiment of the present invention provides a skid-mounted comprehensive energy supply system based on liquefied natural gas, which can use liquefied natural gas to simultaneously provide cooling, heat, electricity, and gas, and has diversified functions. It solves the problem of emergency comprehensive energy supply under conditions of regional cooling, heat, electricity, and gas multiple energy failures and the supply demand of multiple energy sources in remote areas. It has the outstanding advantage of a variety of cooling, heat, electricity, and gas comprehensive energy supply types to meet the needs of various energy loads.

[0041] The following combination Figure 1-Figure 5The technical solution provided by the present invention is described in more detail.

[0042] like Figure 1-Figure 5 As shown, this embodiment provides a skid-mounted integrated energy supply system based on liquefied natural gas, including a skid-mounted shell 26, a gas turbine 5 placed in the skid-mounted shell 26, a gas generator 14, an air-heated heater 9, a cold storage heater 13, and an LNG storage tank 1, an LNG pump 2, a vaporizer 3, and a gas storage tank 4 connected in sequence along the gas flow direction, wherein: one of the outlet branches of the gas storage tank 4 is connected to a gas supply port 265; another outlet branch of the gas storage tank 4 is connected to a gas boiler 25, and the outlet of the gas boiler 25 is connected to a heating port 263; another gas outlet of the gas storage tank 4 is connected to the gas turbine 5 and the gas generator 14, and the gas generator 14 is connected There is a power supply port 266; the vaporizer 3 is arranged in parallel with the wind-heating heater 9, and the vaporizer 3 housing is provided with a heating coil 31. The heating coil 31 forms a wind-heating heating circuit with the wind-heating heater 9 and its connecting pipes. The cold storage heater 13 housing is provided with a cold-releasing coil 131, a heat-releasing coil 132, and a cold-supply coil 133. The heat-releasing coil 132 is connected to a heat source. The heating coil 31, the cold-releasing coil 131, and their connecting pipes form a cold-storage heating circuit. The cold-supply coil 133 is connected to a cold-supply port 1 261. The gas supply port 265, the heat supply port 1 263, the power supply port 266, and the cold-supply port 1 261 are all provided on the skid-mounted housing 26. LNG stands for liquefied natural gas.

[0043] See also Figure 1 As shown, the skid-mounted integrated energy supply system based on liquefied natural gas in this embodiment also includes a flue gas exhaust port 8, and the wind-heating heater 9 includes an induced draft fan 91 and a heat exchange tube 92, wherein: the flue gas exhaust port 8 is arranged toward the induced draft fan 91, the heating coil 31 and the heat exchange tube 92 form an air-heating heating circulation loop, and the induced draft fan 91 blows the high-temperature flue gas discharged from the flue gas exhaust port 8 toward the heat exchange tube 92.

[0044] The flue gas outlet 8 can be connected to a device that discharges hot flue gas, utilizing the residual heat of the hot flue gas to exchange heat with the circulating heat exchange medium in the heat exchange tube 92. The flue gas outlet 8 faces the inlet of the wind-heating heater 9, and the induced draft fan 91 of the wind-heating heater blows the high-temperature flue gas discharged from the flue gas outlet 8 toward the heat exchange tube 92 of the wind-heating heater to heat the circulating heat exchange medium in the heat exchange tube.

[0045] See also Figure 1 、 Figure 2 and Figure 3 As shown, the intersection of the wind-heating heating circulation loop and the cold storage heating circulation loop is connected with an inlet three-way valve 10 and an outlet three-way valve 11, which are respectively located at the inlet pipe section and the outlet pipe section of the heating coil 31.

[0046] like Figure 2 As shown, the heating coil 31 in the vaporizer 3 and the air-heating heater 9, the inlet three-way valve 10, the outlet three-way valve 11, the heat exchange medium pump 12, and the cold storage heater 13 constitute two parallel gasification heating circuits, namely, an air-heating heating cycle and a cold storage heating cycle; after the heat exchange medium absorbs the cold energy of gasification in the heating coil 31, it returns to the heating coil 31 through the heat exchange medium pump 12, the outlet three-way valve 11, the air-heating heater 9, and the inlet three-way valve 10 to constitute the above-mentioned air-heating heating cycle, and the heat source of the air-heating heating cycle comes from the ambient air or the waste heat of the flue gas discharged from the flue gas outlet 8. The heating coil 31, the heat exchange medium pump 12, the outlet three-way valve 11, the cold-releasing coil 131 in the cold storage heater, and the inlet three-way valve 10 constitute a cold storage heating cycle, and the heat of this cycle comes from the condensation heat released by the heat-releasing coil 132 from the condenser 21 (such as Figure 1 、 Figure 4 The cooling coil 133 is connected to a cooling port 261 of the skid-mounted shell 26 and supplies cooling to the outside through the port.

[0047] See also Figure 1 As shown, the gas storage tank 4 is connected to the gas supply port 265 of the skid-mounted shell 26 through a pressure reducing valve and supplies gas to the outside through the port; the gas storage tank 4 supplies gas to the gas boiler 25 through the pressure reducing valve, and the heat generated by combustion in the gas boiler 25 is supplied to the outside through the heating port 263 on the skid-mounted shell.

[0048] As an alternative embodiment, see Figure 1 and Figure 4 As shown, the skid-mounted integrated energy supply system based on liquefied natural gas in this embodiment also includes a heat storage cooler 6, a waste heat recovery device 7, a steam turbine 19, a steam generator 20, and a condenser 21. The heat storage cooler 6 has an evaporation coil 61 installed in its shell, the waste heat recovery device 7 has a preheating coil 71 installed in its shell, the condenser 21, the preheating coil 71, the evaporation coil 61, and the steam turbine 19 are sequentially connected along the flow direction of the organic working fluid. The steam outlet of the steam turbine 19 is connected to the steam generator 20, forming an organic Rankine cycle power generation circuit. The steam generator 20 is connected to the power supply port 266. The condenser 21 has a condensation coil 211 installed in its shell, and the condensation coil 211 is used to exchange heat with the organic working fluid in the shell of the condenser 21. Figure 1 and Figure 4 As shown, the flue gas outlet of the gas turbine 5 is connected to the thermal storage cooler 6 and the waste heat recovery unit 7 in sequence. The flue gas from the gas turbine 5 is used to exchange heat with the evaporator coil 61 and the preheating coil 71. The outlet of the waste heat recovery unit 7 is connected to the flue gas discharge port 8, which is arranged to face the air-heated heater 9.

[0049] As an optional embodiment, a heating coil 63 is further disposed within the shell of the thermal storage cooler 6. The heating coil 63 is located on the opposite side of the evaporating coil 61 and communicates with the second heating port 264 on the skid-mounted shell 26. A heat absorption coil 62 is also disposed within the shell of the thermal storage cooler 6. The heat absorption coil 62 and the heating coil 63 are located on the same side of the thermal storage cooler 6 and are spaced apart along the length of the thermal storage cooler 6. The heat absorption coil 62 is connected to the absorption chiller 23, which communicates with the second cooling port 262 on the skid-mounted shell 26.

[0050] See also Figure 1 and Figure 4 As shown, the evaporation coil 61 in the thermal storage cooler 6, the preheating coil 71 in the waste heat recovery device 7, the condenser 21, the organic working fluid pump 22 on the pipeline connecting the condenser 21 and the preheating coil 71, the steam turbine 19 and the steam generator 20 constitute an organic Rankine cycle power generation circuit, that is, the liquid organic working fluid is driven by the organic working fluid pump 22 to enter the preheating coil 71 of the waste heat recovery device 7 to absorb the exhaust heat of the gas turbine 5 for preheating, and then enters the evaporation coil 61 in the thermal storage cooler to absorb heat and evaporate into organic working fluid steam, and then enters the steam turbine 19 to expand and perform work to drive the steam generator 20 to generate electricity. The wet steam of the organic working fluid discharged from level 19 is condensed into liquid in the condenser 21, thereby completing an organic working fluid Rankine power generation cycle; the condensation heat of the condenser 21 is released into the cold storage heater 13 through the heat release coil 132, and the vaporization cold energy is used to reduce the condensation temperature, thereby improving the thermal efficiency of the Rankine cycle; the heating coil 63 in the thermal storage cooler 6 is connected to the heating port 2 264 on the skid-mounted shell 26 to supply heat to the outside; the heat absorption coil 62 in the thermal storage cooler 6 transfers heat to the absorption refrigerator 23 for cooling, and the absorption refrigerator 23 is connected to the cooling port 262 on the skid-mounted shell 26 to supply cooling to the outside.

[0051] As an alternative embodiment, see Figure 1 and Figure 5 As shown, the condensing coil 211 is connected to the heat releasing coil 132 , and the condensing coil 211 , the heat releasing coil 132 and the refrigerant pump 24 on the connecting pipeline form a condensing and heat releasing circulation loop.

[0052] See also Figure 1 and Figure 5 As shown, the heat-releasing coil 132 in the cold storage heater 13, the refrigerant pump 24, and the condensing coil 211 in the condenser 21 constitute a condensation heat-releasing cycle. This cycle utilizes the condensation heat in the condenser 21 as a heat source to promote the vaporization of LNG. At the same time, the cold stored in the cold storage heater 13 is utilized as a cold source for the condenser 21. While improving the thermal efficiency of the organic Rankine cycle, it provides heat for the vaporization of LNG, thereby improving the vaporization efficiency of LNG.

[0053] As an alternative embodiment, see Figure 1 As shown, the gas generator 14 is electrically connected to the transformer 15, one of the AC branches of the transformer 15 is electrically connected to the power supply port 266, and the other AC branch is electrically connected to the input converter 16 and the energy storage battery module 17 in sequence, and the energy storage battery module 17 is electrically connected to the output-input converter 18, and the output-input converter 18 supplies DC or AC power to the power supply port 266.

[0054] like Figure 1 As shown, the natural gas in the gas tank 4 is decompressed through a valve and then enters the gas turbine 5 to burn and generate power to drive the gas generator 14 to generate electricity; the electricity generated by the gas generator 14 and the steam generator 20 is divided into two paths after being voltage-regulated by the transformer 15, one path of AC power is directly supplied to the outside through the power supply port 266; the other path enters the energy storage battery module 17 through the input converter 16 for charging and storage; when the energy storage battery module 17 needs external power supply, DC or AC power is supplied to the power supply port 266 through the input-input converter 18; the energy storage battery module 17 is also connected to the LNG pump 2, the induced draft fan 91 of the air-heating heater 9, the heat exchange working fluid pump 12, the organic working fluid pump 22 and the refrigerant pump 24 for power supply to ensure the overall startup and operation of the system.

[0055] The system uses vaporizer cold energy storage and absorption chillers to provide cooling; uses gas boilers and gas turbine exhaust to store heat for heating; uses gas storage tanks to directly supply gas; and uses gas turbines and organic working fluid steam turbines to jointly generate, store and supply electricity, thereby achieving skid-mounted efficient supply of cold, heat, electricity and gas integrated energy.

[0056] The skid-mounted integrated energy supply system based on liquefied natural gas proposed in the present invention solves the problem of emergency integrated energy supply under conditions of failure of multiple energy sources such as cold, heat, electricity, and gas in cities, as well as the supply demand of multiple energy sources in remote areas. It has the outstanding advantage of providing a variety of integrated energy supplies of cold, heat, electricity, and gas to meet the needs of various energy loads, and has broad application prospects in the fields of emergency integrated energy supply in cities and multi-energy joint supply in remote mountainous areas.

[0057] In the description of this specification, specific features, structures or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0058] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0059] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A skid-mounted integrated energy supply system based on liquefied natural gas, characterized by: The invention comprises a skid-mounted shell (26), a gas turbine (5) placed in the skid-mounted shell (26), a gas generator (14), an air-heating heater (9), a cold storage heater (13), and an LNG storage tank (1), an LNG pump (2), a vaporizer (3), and a gas storage tank (4) connected in sequence along the gas flow direction, wherein: One of the outlet branches of the gas storage tank (4) is connected to a gas supply port (265); Another outlet branch of the gas storage tank (4) is connected to a gas boiler (25), and the outlet of the gas boiler (25) is connected to a heating port 1 (263); Another gas outlet of the gas storage tank (4) is connected to the gas turbine (5) and the gas generator (14), and the gas generator (14) is connected to a power supply port (266); The vaporizer (3) and the wind-heating heater (9) are arranged in parallel, and a heating coil (31) is arranged in the shell of the vaporizer (3), and the heating coil (31) and the wind-heating heater (9) and the connecting pipeline form a wind-heating heating circulation loop; the shell of the cold storage heater (13) is provided with a cold-releasing coil (131), a heat-releasing coil (132) and a cold-supply coil (133), and the heat-releasing coil (132) is connected to a heat source, and the heating coil (31) and the cold-releasing coil (131) and the connecting pipeline form a cold-storage heating circulation loop, and the cold-supply coil (133) is connected to a cold-supply port 1 (261); The gas supply port (265), the heating port (263), the power supply port (266) and the cooling port (261) are all arranged on the skid-mounted shell (26).

2. The skid-mounted integrated energy supply system based on liquefied natural gas according to claim 1 is characterized in that: The skid-mounted integrated energy supply system based on liquefied natural gas further comprises a flue gas exhaust port (8), and the wind-heated heater (9) comprises an induced draft fan (91) and a heat exchange pipe (92), wherein: The flue gas outlet (8) is arranged toward the induced draft fan (91), the heating coil (31) and the heat exchange tube (92) form the wind-heat heating circulation loop, and the induced draft fan (91) blows the high-temperature flue gas discharged from the flue gas outlet (8) toward the heat exchange tube (92).

3. The skid-mounted integrated energy supply system based on liquefied natural gas according to claim 1 is characterized in that: The skid-mounted integrated energy supply system based on liquefied natural gas further includes a heat storage cooler (6), a waste heat recovery device (7), a steam turbine (19), a steam generator (20), and a condenser (21), wherein: An evaporation coil (61) is provided in the shell of the heat storage cooler (6), a preheating coil (71) is provided in the waste heat recovery device (7), the condenser (21), the preheating coil (71), the evaporation coil (61), and the steam turbine (19) are sequentially connected along the flow direction of the organic working medium, and the steam outlet of the steam turbine (19) is connected to the steam generator (20), thereby forming an organic Rankine cycle power generation circuit; The steam generator (20) is connected to the power supply port (266); A condensing coil (211) is provided in the shell of the condenser (21), and the condensing coil (211) is used to exchange heat with the organic working medium in the shell of the condenser (21).

4. The skid-mounted integrated energy supply system based on liquefied natural gas according to claim 3 is characterized in that: The flue gas outlet of the gas turbine (5) is connected to the heat storage cooler (6) and the waste heat recovery device (7) in sequence, and the flue gas of the gas turbine (5) is used to exchange heat with the evaporating coil (61) and the preheating coil (71).

5. The skid-mounted integrated energy supply system based on liquefied natural gas according to claim 4 is characterized in that: The outlet of the waste heat recovery device (7) is connected to a smoke exhaust port (8), and the smoke exhaust port (8) is arranged toward the wind-heated heater (9).

6. The skid-mounted integrated energy supply system based on liquefied natural gas according to claim 3 is characterized in that: The condensing coil (211) is connected to the heat releasing coil (132), and the condensing coil (211), the heat releasing coil (132) and the refrigerant pump (24) on the connecting pipeline form a condensing and heat releasing circulation loop.

7. The skid-mounted integrated energy supply system based on liquefied natural gas according to claim 3 is characterized in that: A heating coil (63) is also provided in the shell of the heat storage cooler (6), wherein: The heating coil (63) is located on the opposite side of the evaporation coil (61), and the heating coil (63) is in communication with the second heating port (264) on the skid-mounted shell (26).

8. The skid-mounted integrated energy supply system based on liquefied natural gas according to claim 7 is characterized in that: A heat absorbing coil (62) is further provided in the shell of the thermal storage cooler (6), wherein the heat absorbing coil (62) and the heat supply coil (63) are located on the same side of the thermal storage cooler (6) and are arranged at intervals along the length direction of the thermal storage cooler (6); The heat absorbing coil (62) is connected to an absorption refrigeration machine (23), and the absorption refrigeration machine (23) is connected to the second cooling port (262) on the skid-mounted shell (26).

9. The skid-mounted integrated energy supply system based on liquefied natural gas according to claim 1 is characterized in that: The gas generator (14) is electrically connected to a transformer (15), one of the AC branches of the transformer (15) is electrically connected to the power supply port (266), and the other AC branch is electrically connected to an input converter (16) and an energy storage battery module (17) in sequence, and the energy storage battery module (17) is electrically connected to an output-input converter (18), and the output-input converter (18) supplies DC or AC power to the power supply port (266).

10. The skid-mounted integrated energy supply system based on liquefied natural gas according to claim 1 is characterized in that: An inlet three-way valve (10) and an outlet three-way valve (11) are connected to the intersection of the wind-heating heating circulation loop and the cold storage heating circulation loop. The inlet three-way valve (10) and the outlet three-way valve (11) are respectively located at the inlet pipe section and the outlet pipe section of the heating coil (31).