Heat pipe molten salt energy storage and power supply device and method of use thereof

Abstract

The application belongs to the technical field of energy storage and supply devices, in particular to a heat pipe type molten salt energy storage and supply device and a use method thereof, which comprises a heat preservation cylinder, a heat exchange assembly and an energy storage assembly; the heat exchange assembly is arranged in the heat preservation cylinder, and the two side ports of the heat exchange assembly extend to the outside of the heat preservation cylinder; the energy storage assembly is located on one side of the heat exchange assembly, and the heat exchange assembly and the energy storage assembly are in communication with each other; the molten salt is stored in the heat exchange assembly, and the heat exchange assembly is heated to store energy; water is introduced into one end of the energy storage assembly, the water is heated by the molten salt to become steam, and the steam is stored in the energy storage assembly; the steam collected in the energy storage assembly is used for steam power generation to realize energy supply and improve the efficiency of molten salt energy storage and supply.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of energy storage and supply devices, and particularly relates to a heat pipe type molten salt energy storage and supply device and a use method thereof. BACKGROUND

[0002] The molten salt has a series of advantages such as high working temperature, wide use temperature range, strong heat transfer capacity, small system pressure and good economy, and has become the first choice for heat transfer and heat storage medium of a light and heat power station. However, the molten salt energy storage technology can be applied to various scenes based on its excellent characteristics, and cannot be matched with light and heat.

[0003] Through retrieval, the existing technology discloses a double-tank molten salt energy storage device in Chinese Patent Publication No. CN221464405U, authorized on August 2, 2024, which comprises a first molten salt energy storage tank and a second molten salt energy storage tank. The first molten salt energy storage tank and the second molten salt energy storage tank are respectively provided with a first molten salt pump and a second molten salt pump. The first molten salt pump and the second molten salt pump are both provided with a liquid suction pipe, which extends to the first molten salt energy storage tank and the second molten salt energy storage tank. The first molten salt pump and the second molten salt pump are respectively provided with a first liquid outlet pipe and a second liquid outlet pipe. The first liquid outlet pipe and the second liquid outlet pipe are jointly provided with a heat energy input pipe. The first top cover and the second top cover are respectively provided with a first liquid return pipe and a second liquid return pipe. The first liquid return pipe and the second liquid return pipe are jointly provided with a cold liquid return pipe. The advantages of the present application compared with the prior art are that the double-tank design cooperates with the control of the liquid outlet and inlet directions to ensure that one application is performed while the other is heated, thereby being suitable for heat energy supply equipment working for a long time.

[0004] However, the device still has the following defects: although it can ensure that one application is performed while the other is heated, the molten salt particles inside the energy storage device need to be cooled and supplied with energy after heating, and the heated molten salt particles cannot be quickly formed into available steam, resulting in low energy supply efficiency of the molten salt energy storage. SUMMARY

[0005] In view of the above problems, the present application provides a heat pipe type molten salt energy storage and supply device, which comprises a heat preservation cylinder, a heat exchange assembly and an energy storage assembly. The heat exchange assembly is installed in the heat preservation cylinder, and the two side ports of the heat exchange assembly extend to the outside of the heat preservation cylinder. The energy storage assembly is located on one side of the heat exchange assembly, and the heat exchange assembly and the energy storage assembly are in communication with each other.

[0006] The inside of the heat exchange assembly is used to store molten salt, and the heat exchange assembly is heated to store energy of the molten salt. When the heat energy stored by the molten salt needs to be used, water is introduced into one end of the energy storage assembly, the water is heated by the molten salt to become steam, and the steam is stored in the energy storage assembly. The steam collected in the energy storage assembly is used for steam power generation to realize energy supply.

[0007] Further, the heat exchange assembly comprises a heat exchange mechanism and a medium input mechanism; the heat exchange mechanism is arranged in a spiral shape, and one end of the heat exchange mechanism is communicated with the medium input mechanism, and the medium input mechanism is embeddedly installed on the outer wall of the heat preservation cylinder.

[0008] Further, the heat exchange mechanism comprises a spiral heat exchange pipe; a plurality of groups of steam recovery holes are formed in the top of the spiral heat exchange pipe, the central axes of the plurality of groups of steam recovery holes coincide, and the plurality of groups of steam recovery holes are communicated with each other.

[0009] Further, the bottom of the spiral heat exchange pipe and close to the port are communicated with a medium output pipe, the end of the medium output pipe is provided with a first electromagnetic valve, the first electromagnetic valve is embeddedly installed on the outer side wall of the heat preservation cylinder, the inner wall of the spiral heat exchange pipe is provided with an electric heating pipe, and both ends of the electric heating pipe are fixedly connected with linkage plates.

[0010] Further, the top ends of the two groups of linkage plates penetrate through the two side ports of the spiral heat exchange pipe, the two groups of linkage plates are embeddedly installed with limit pin columns, and the bottoms of the limit pin columns are connected with the top end of the spiral heat exchange pipe.

[0011] Further, the medium input mechanism comprises a linkage disc and a second electromagnetic valve; the outer wall of the linkage disc is embeddedly installed with an air pump, a water source joint and a molten salt replenishment joint, and the air pump, the water source joint and the molten salt replenishment joint are arranged in a ring array with the central axis of the linkage disc as the center.

[0012] Further, the central axis of the linkage disc is drivingly connected with the output end of a servo motor, the servo motor is embeddedly installed on the outer wall of the heat preservation cylinder away from the output end, the second electromagnetic valve is embeddedly installed on the outer wall of the heat preservation cylinder, and one end of the second electromagnetic valve is respectively communicated with the interfaces of the air pump, the water source joint and the molten salt replenishment joint.

[0013] Further, the second electromagnetic valve is further provided with a particle suction pump, the other end of the second electromagnetic valve is communicated with a medium input pipe, the end of the medium input pipe is communicated with the other end of the spiral heat exchange pipe, the outer wall of the medium input pipe is fixedly connected with a cylinder support, the cylinder support is fixedly connected with a pneumatic telescopic rod, and the output end of the pneumatic telescopic rod is drivingly connected with the top of the linkage plate.

[0014] Further, the energy storage assembly comprises an energy storage box; a side wall of the energy storage box is embedded with a plurality of groups of steam output pipes, the plurality of groups of steam output pipes are in communication with the steam recovery holes, and the plurality of groups of steam output pipes are internally provided with one-way valves; the outer wall of the energy storage box and the side away from the plurality of groups of steam output pipes are communicated with a steam recovery pipe, and one end of the steam recovery pipe extends to the outside of the heat preservation cylinder.

[0015] A method for using a heat pipe type molten salt energy storage and supply device, comprising the following steps,

[0016] The molten salt is stored in the heat exchange assembly, and the heat exchange assembly is heated to store energy in the molten salt;

[0017] Water is introduced into one end of the energy storage assembly, the water is heated into steam by the molten salt, and the steam is stored in the energy storage assembly;

[0018] The steam collected in the energy storage assembly is used for steam power generation to realize energy supply.

[0019] The beneficial effects of the present application are:

[0020] 1. The molten salt is stored in the heat exchange assembly, and the heat exchange assembly is heated to store energy in the molten salt; water is introduced into one end of the energy storage assembly, the water is heated into steam by the molten salt, and the steam is stored in the energy storage assembly; the steam collected in the energy storage assembly is used for steam power generation to realize energy supply, thereby improving the efficiency of molten salt energy storage and supply.

[0021] 2. The molten salt particles are connected through the molten salt feeding joint, and under the condition that the particle suction pump continuously works and the second electromagnetic valve is opened, the molten salt particles enter the spiral heat exchange pipe in sequence, the output end of the pneumatic telescopic rod drives the linkage plate to move upwards, the electric heating pipe moves from the middle position of the inner cavity of the spiral heat exchange pipe to the top position of the inner cavity, thereby reserving space for feeding or replacing the molten salt particles in the spiral heat exchange pipe, and the molten salt particles can be quickly filled into the spiral heat exchange pipe.

[0022] 3. In the process of continuous work of the electric heating pipe, the electric heating pipe generates heat in the spiral heat exchange pipe, the molten salt in the spiral heat exchange pipe is heated to store energy, when the stored heat energy of the molten salt is needed, the output end of the servo motor is used to drive the linkage disc to rotate, the water source joint is connected with the water pipe, the water source is fed into the spiral heat exchange pipe, the water source is heated into steam by the molten salt, the steam is transferred into the steam output pipe through the plurality of groups of steam recovery holes, and is stored in the energy storage box; under the double insulation effect of the energy storage box and the heat preservation cylinder, the stored steam can fully utilize the heat stored by the molten salt, thereby improving the working efficiency of the energy storage and supply device and reducing the heat loss.

[0023] 4, through the opening of the first electromagnetic valve, and then the rotation of the servo motor drives the linkage disc, and the air pump is rotated to the state of being communicated with the second electromagnetic valve, and then the air pump and the second electromagnetic valve are started, the gas is input into the spiral heat exchange pipe, the caked molten salt particle block in the spiral heat exchange pipe is discharged outward from the first electromagnetic valve, the molten salt particles are conveniently replaced periodically, and the operation cost and maintenance workload of the molten salt energy storage and energy supply are reduced.

[0024] 5, in the process of driving the linkage piece to move downward through the output end of the pneumatic telescopic rod, the limiting pin column can limit the continuous falling of the electric heating pipe after abutting against the top of the spiral heat exchange pipe, so that the electric heating pipe is located in the middle position in the spiral heat exchange pipe, the molten salt particles stored in the spiral heat exchange pipe can be uniformly heated, and the heating efficiency of the molten salt particles is improved.

[0025] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the application. The objects and other advantages of the present application can be realized and attained by the structure particularly pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0027] Figure 1 The structure of the heat pipe type molten salt energy storage and energy supply device is shown Figure One ;

[0028] Figure 2 The structure of the heat pipe type molten salt energy storage and energy supply device is shown Figure Two ;

[0029] Figure 3 The structure of the heat exchange assembly is shown

[0030] Figure 4 The structure of the heat exchange mechanism is shown

[0031] Figure 5 The structure of the electric heating pipe is shown

[0032] Figure 6 The structure of the medium input mechanism is shown

[0033] Figure 7The structural schematic diagram of the energy storage box of the embodiment of the present application is shown.

[0034] In the figure: 1, heat preservation cylinder; 2, heat exchange assembly; 21, heat exchange mechanism; 211, spiral heat exchange pipe; 212, steam recovery hole; 213, medium output pipe; 214, first electromagnetic valve; 215, electric heating pipe; 216, linkage piece; 217, limiting pin column; 22, medium input mechanism; 221, linkage disc; 222, air pump; 223, water source joint; 224, molten salt replenishment joint; 225, servo motor; 226, second electromagnetic valve; 227, medium input pipe; 228, air cylinder support; 229, pneumatic telescopic rod; 3, energy storage assembly; 31, energy storage box; 32, steam output pipe; 33, steam recovery pipe. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be clearly and completely explained below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0036] The embodiment of the present application provides a heat pipe type molten salt energy storage and supply device, which comprises a heat preservation cylinder 1, a heat exchange assembly 2 and an energy storage assembly 3. Figure 1 and Figure 2 as shown.

[0037] The heat exchange assembly 2 is arranged in the heat preservation cylinder 1, and the two side ports of the heat exchange assembly 2 extend to the outside of the heat preservation cylinder 1. The energy storage assembly 3 is located on one side of the heat exchange assembly 2, and the heat exchange assembly 2 and the energy storage assembly 3 are in communication with each other.

[0038] Specifically, the inside of the heat exchange assembly 2 is used for storing molten salt, and the heat exchange assembly 2 is heated to store energy of the molten salt. When the heat energy stored by the molten salt needs to be used, a water source is introduced into one end of the energy storage assembly 3. The water source is heated by the molten salt to become steam, and the steam is stored in the energy storage assembly 3. The collected steam in the energy storage assembly 3 is used for steam power generation to realize energy supply.

[0039] The heat exchange assembly 2 comprises a heat exchange mechanism 21 and a medium input mechanism 22. Figure 3 as shown.

[0040] The heat exchange mechanism 21 is arranged in a spiral shape, and one end of the heat exchange mechanism 21 is in communication with the medium input mechanism 22. The medium input mechanism 22 is embeddedly arranged on the outer wall of the heat preservation cylinder 1.

[0041] The heat exchange mechanism 21 comprises a spiral heat exchange pipe 211; as shown in the example, Figure 4 and Figure 5 .

[0042] The top of the spiral heat exchange pipe 211 is provided with a plurality of groups of steam recovery holes 212, the central axes of the plurality of groups of steam recovery holes 212 coincide, and the plurality of groups of steam recovery holes 212 are in communication with each other. The bottom of the spiral heat exchange pipe 211 is communicated with a medium output pipe 213 near the port, the end of the medium output pipe 213 is provided with a first electromagnetic valve 214, and the first electromagnetic valve 214 is embedded and installed on the outer wall of the heat preservation cylinder 1. The inner wall of the spiral heat exchange pipe 211 is provided with an electric heating pipe 215, both ends of the electric heating pipe 215 are fixedly connected with linkage plates 216, the top ends of the two groups of linkage plates 216 penetrate through the two side ports of the spiral heat exchange pipe 211, and limit pin columns 217 are embedded and installed on the two groups of linkage plates 216, and the bottoms of the limit pin columns 217 are connected with the top end of the spiral heat exchange pipe 211.

[0043] The medium input mechanism 22 comprises a linkage disc 221 and a second electromagnetic valve 226; as shown in the example, Figure 6 .

[0044] The outer wall of the linkage disc 221 is embedded and installed with an air pump 222, a water source joint 223 and a molten salt replenishment joint 224, which are arranged in a ring array around the central axis of the linkage disc 221. The central axis of the linkage disc 221 is drivingly connected with the output end of a servo motor 225, and the side of the servo motor 225 away from the output end is embedded and installed on the outer wall of the heat preservation cylinder 1. The second electromagnetic valve 226 is embedded and installed on the outer wall of the heat preservation cylinder 1, and one end of the second electromagnetic valve 226 is in communication with the interfaces of the air pump 222, the water source joint 223 and the molten salt replenishment joint 224, respectively. The second electromagnetic valve 226 is also provided with a particle suction pump, the other end of the second electromagnetic valve 226 is communicated with a medium input pipe 227, and the port of the medium input pipe 227 is communicated with the other end of the spiral heat exchange pipe 211. The outer wall of the medium input pipe 227 is fixedly connected with a cylinder bracket 228, and the cylinder bracket 228 is fixedly connected with a pneumatic telescopic rod 229, and the output end of the pneumatic telescopic rod 229 is drivingly connected with the top of the linkage plate 216.

[0045] The energy storage assembly 3 comprises an energy storage box 31; as shown in the example, Figure 7 .

[0046] The side wall of the energy storage box 31 is embedded with a plurality of groups of steam output pipes 32, the plurality of groups of steam output pipes 32 are in communication with the steam recovery holes 212, the interiors of the plurality of groups of steam output pipes 32 are provided with one-way valves, the outer wall of the energy storage box 31 and away from the plurality of groups of steam output pipes 32 is connected with a steam recovery pipe 33, one end of the steam recovery pipe 33 extends to the outside of the heat preservation cylinder 1.

[0047] Specifically, the molten salt feeding joint 224 connects the molten salt particles, and under the condition that the particle suction pump continuously works and the second electromagnetic valve 226 is opened, the molten salt particles enter the spiral heat exchange pipe 211 in sequence, the output end of the pneumatic telescopic rod 229 drives the linkage plate 216 to move upwards, the electric heating pipe 215 moves from the middle position of the inner cavity of the spiral heat exchange pipe 211 to the top position of the inner cavity, thereby reserving space for feeding or replacing molten salt particles in the spiral heat exchange pipe 211, and the molten salt particles can be quickly filled into the spiral heat exchange pipe 211.

[0048] During continuous work of the electric heating pipe 215, the electric heating pipe 215 generates heat in the spiral heat exchange pipe 211, so that the spiral heat exchange pipe 211 heats the molten salt inside, when the stored heat energy of the molten salt needs to be used, the output end of the servo motor 225 drives the linkage disc 221 to rotate, the water source joint 223 is connected with the water pipe, and then the water source is fed into the spiral heat exchange pipe 211, the water source is heated by the molten salt to become steam, and the steam is transmitted into the steam output pipe 32 through the plurality of groups of steam recovery holes 212 and is stored in the energy storage box 31, under the double heat preservation of the energy storage box 31 and the heat preservation cylinder 1, the stored steam can fully utilize the heat stored by the molten salt, thereby improving the working efficiency of the energy storage and supply device and reducing heat loss.

[0049] When the first electromagnetic valve 214 is opened, the linkage disc 221 is rotated by the servo motor 225, the air pump 222 is rotated to a state of communication with the second electromagnetic valve 226, and then the air pump 222 and the second electromagnetic valve 226 are started to input gas into the spiral heat exchange pipe 211, so that the caked molten salt particles in the spiral heat exchange pipe 211 are discharged outward from the first electromagnetic valve 214, thereby facilitating periodic replacement of the molten salt particles.

[0050] During the process that the output end of the pneumatic telescopic rod 229 drives the linkage plate 216 to move downwards, the limiting pin column 217 abuts against the top of the spiral heat exchange pipe 211, thereby limiting continuous falling of the electric heating pipe 215, so that the electric heating pipe 215 is in a position in the middle of the spiral heat exchange pipe 211 and can uniformly heat the molten salt particles stored in the spiral heat exchange pipe 211.

[0051] The working principle of the heat pipe type molten salt energy storage and supply device is as follows:

[0052] The molten salt particles are connected through the molten salt feeding joint 224, and in the state that the particle suction pump continuously works and the second electromagnetic valve 226 is opened, the molten salt particles enter the spiral heat exchange pipe 211 in sequence, the output end of the pneumatic telescopic rod 229 drives the linkage plate 216 to move upwards, the electric heating pipe 215 moves from the middle position of the inner cavity of the spiral heat exchange pipe 211 to the top position of the inner cavity, a space for feeding or replacing the molten salt particles is reserved for the molten salt particles to be transported into the spiral heat exchange pipe 211, and the molten salt particles can be quickly filled into the spiral heat exchange pipe 211.

[0053] In the process of continuously working of the electric heating pipe 215, the electric heating pipe 215 generates heat in the spiral heat exchange pipe 211, the spiral heat exchange pipe 211 heats the molten salt inside, when the heat energy stored by the molten salt needs to be used, the output end of the servo motor 225 drives the linkage disc 221 to rotate, the water source joint 223 is connected with the water pipe, the water source is transported into the spiral heat exchange pipe 211, the water source is heated by the molten salt to become steam, the steam is transmitted into the steam output pipe 32 through a plurality of groups of steam recovery holes 212, and is stored in the energy storage box 31, under the double insulation of the energy storage box 31 and the heat preservation cylinder 1, the stored steam can fully utilize the heat stored by the molten salt, the working efficiency of the energy storage and supply device is improved, and the heat loss is reduced.

[0054] Since the molten salt will change in phase from solid to liquid in the heat storage process, it will gradually decay in this process, so that the phase change heat is reduced, the heat storage efficiency is affected, in the heat release process, the molten salt is easy to form blocks and form large gaps, which reduces the heat storage density and the thermal conductivity, affects the overall performance of the system, and needs to be replaced regularly, through the opening of the first electromagnetic valve 214, the linkage disc 221 is rotated by the servo motor 225, the air pump 222 is rotated to the state of being communicated with the second electromagnetic valve 226, the air pump 222 and the second electromagnetic valve 226 are started, the gas is input into the spiral heat exchange pipe 211, the molten salt particle blocks in the spiral heat exchange pipe 211 are discharged outward from the first electromagnetic valve 214, and the molten salt particles are conveniently replaced regularly.

[0055] In the process of driving the linkage plate 216 to move downwards through the output end of the pneumatic telescopic rod 229, the limiting pin 217 is in contact with the top of the spiral heat exchange pipe 211, so that the continuous falling of the electric heating pipe 215 is limited, the electric heating pipe 215 is in the position of being centered in the spiral heat exchange pipe 211, and the molten salt particles stored in the spiral heat exchange pipe 211 can be uniformly heated.

[0056] On the basis of the above-mentioned heat pipe type molten salt energy storage and supply device, the embodiment of the present application further provides a use method of the heat pipe type molten salt energy storage and supply device, comprising the following steps,

[0057] The molten salt is stored in the interior of the heat exchange assembly, and the heat exchange assembly is heated to store energy for the molten salt;

[0058] Water is introduced into one end of the energy storage assembly, and the water is heated into steam by the molten salt and stored in the energy storage assembly;

[0059] The steam collected in the energy storage assembly is used for steam power generation to realize energy supply.

[0060] Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A heat pipe molten salt energy storage and power providing device, characterized by: The application relates to a heat storage device, which comprises a heat preservation cylinder (1), a heat exchange assembly (2) and an energy storage assembly (3); the heat exchange assembly (2) is arranged in the heat preservation cylinder (1) and the two side ports of the heat exchange assembly (2) extend to the outside of the heat preservation cylinder (1); the energy storage assembly (3) is arranged on one side of the heat exchange assembly (2) and the heat exchange assembly (2) and the energy storage assembly (3) are communicated with each other. The inside of the heat exchange assembly (2) is used for storing molten salt and heating the heat exchange assembly (2) to store energy; when the stored heat energy is needed, water is introduced into one end of the heat exchange assembly (2) to be heated by the molten salt into steam, which is stored in the energy storage assembly (3); the steam collected in the energy storage assembly (3) is used for steam power generation to realize energy supply. The heat exchange assembly (2) comprises a heat exchange mechanism (21) and a medium input mechanism (22); the heat exchange mechanism (21) is arranged in a spiral shape and one end of the heat exchange mechanism (21) is communicated with the medium input mechanism (22); the medium input mechanism (22) is embeddedly arranged on the outer wall of the heat preservation cylinder (1). The heat exchange mechanism (21) comprises a spiral heat exchange pipe (211); the inner wall of the spiral heat exchange pipe (211) is provided with an electric heating pipe (215); the two ends of the electric heating pipe (215) are fixedly connected with linkage plates (216). The medium input mechanism (22) comprises a linkage disc (221) and a second electromagnetic valve (226); the outer wall of the linkage disc (221) is embeddedly arranged with an air pump (222), a water source joint (223) and a molten salt supplement joint (224); the air pump (222), the water source joint (223) and the molten salt supplement joint (224) are arranged in a ring array around the central axis of the linkage disc (221). The central axis of the linkage disc (221) is drivingly connected with the output end of a servo motor (225); the side, away from the output end, of the servo motor (225) is embeddedly arranged on the outer wall of the heat preservation cylinder (1); the second electromagnetic valve (226) is embeddedly arranged on the outer wall of the heat preservation cylinder (1) and one end of the second electromagnetic valve (226) is communicated with the interfaces of the air pump (222), the water source joint (223) and the molten salt supplement joint (224). A particle suction pump is further arranged on the second electromagnetic valve (226); the other end of the second electromagnetic valve (226) is communicated with a medium input pipe (227); the port of the medium input pipe (227) is communicated with the other end of the spiral heat exchange pipe (211); the outer wall of the medium input pipe (227) is fixedly connected with a pneumatic cylinder support (228); the pneumatic cylinder support (228) is fixedly connected with a pneumatic telescopic rod (229); the output end of the pneumatic telescopic rod (229) is drivingly connected with the top of the linkage plate (216).

2. The heat pipe molten salt energy storage and generation device of claim 1, wherein: The top of the spiral heat exchange pipe (211) is provided with a plurality of groups of steam recovery holes (212); the central axes of the plurality of groups of steam recovery holes (212) coincide; the plurality of groups of steam recovery holes (212) are communicated with the heat exchange assembly (2).

3. The heat pipe molten salt energy storage and generation device of claim 2, wherein: The bottom of the spiral heat exchange pipe (211) is communicated with a medium output pipe (213) close to the port, the end of the medium output pipe (213) is provided with a first electromagnetic valve (214), and the first electromagnetic valve (214) is embeddedly installed on the outer side wall of the heat preservation cylinder (1).

4. The heat pipe molten salt energy storage and generation device of claim 3, wherein: The top ends of the two groups of linkage plates (216) penetrate through the two side ports of the spiral heat exchange pipe (211), the two groups of linkage plates (216) are embeddedly installed with limiting pin columns (217), and the bottoms of the limiting pin columns (217) are connected to the top end of the spiral heat exchange pipe (211).

5. The heat pipe molten salt energy storage and generation device of claim 1, wherein: The energy storage assembly (3) comprises an energy storage box (31), a plurality of groups of steam output pipes (32) are embeddedly installed on one side wall of the energy storage box (31), the plurality of groups of steam output pipes (32) are in communication with the steam recovery hole (212), one-way valves are arranged in the plurality of groups of steam output pipes (32), a steam recovery pipe (33) is communicated with the outer wall of the energy storage box (31) and away from one side of the plurality of groups of steam output pipes (32), and one end of the steam recovery pipe (33) extends to the outside of the heat preservation cylinder (1).

6. A method of using the heat pipe molten salt energy storage and power generation device according to any one of claims 1-5, characterized in that: The use method comprises: The inside of the heat exchange assembly is used for storing molten salt, and the heat exchange assembly is heated to store energy of the molten salt; Water is introduced into one end of the heat exchange assembly, the water is heated into steam by the molten salt, and the steam is stored in the energy storage assembly; The steam collected in the energy storage assembly is used for steam power generation to realize energy supply.

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