Molten salt heat storage and heating device and working method thereof

Abstract

The invention belongs to the technical field of fused salt heat storage and heating, and discloses a fused salt heat storage and heating device and a working method thereof. The fused salt heat storage and supply device comprises a shell, a circulating pipe and a water conveying pipe, wherein the shell is provided with a first cavity, a second cavity, a communicating groove and a water storage cavity, and the circulating pipe and the water conveying pipe are arranged outside the shell. The first cavity communicates with the second cavity through the communicating groove, and the second cavity is sleeved with the water storage cavity; the to-be-heated molten salt input port is communicated with the after-heat-release molten salt output port through a circulating pipe; the water storage cavity is provided with a cold water input port and a hot water output port, and the hot water output port communicates with a water conveying pipe. The water conveying pipe is sleeved with a heat insulation sleeve, the heat insulation sleeve is provided with an air inlet and an air outlet, and the air outlet is provided with an air conveying pipe. According to the technical scheme, the defects of an existing fused salt heat storage and supply technology in the aspects of the heating speed and the heating mode can be overcome.

Description

Technical Field

[0001] The present invention belongs to the technical field of molten salt thermal energy storage heating, and particularly relates to a molten salt thermal energy storage heating device and its working method. Background Technique

[0002] Molten salt, as a special type of melt, is formed by melting salts at high temperatures. Such melts are mainly composed of metal cations and non-metal anions. Common molten salts include the molten states of halides of alkali metals and alkaline earth metals (such as sodium chloride, potassium chloride, etc.), nitrates (such as sodium nitrate, potassium nitrate, etc.), and sulfates (such as sodium sulfate, etc.). Due to its unique physical and chemical properties, molten salt has shown extensive application potential in the fields of energy storage and heat transfer.

[0003] The molten salt thermal energy storage heating technology utilizes the high heat capacity and good heat transfer performance of molten salt. In this technology, molten salt is used as the energy storage medium and is heated to a high temperature state by means of electric heating. Subsequently, the high-temperature molten salt exchanges heat with the medium (such as water) in the heating system through a heat exchanger, transferring the heat to the medium, thereby achieving the purpose of heating. The above-mentioned molten salt thermal energy storage heating technology not only effectively replaces traditional coal-fired boilers, reduces environmental pollution, but also improves energy utilization efficiency, meeting the current development trend of energy conservation and environmental protection.

[0004] However, despite the many advantages of the molten salt thermal energy storage heating technology, there are still some problems to be solved urgently in practical applications. First of all, the existing molten salt thermal energy storage heating equipment has a slow heating speed when heating low-temperature molten salt. This is mainly due to the relatively low thermal conductivity of molten salt and the sub-optimal design of the heating equipment, resulting in a long heating process. In occasions where continuous heating is required, a slow heating speed will seriously affect the stability and efficiency of the heating system. Secondly, the current molten salt thermal energy storage heating method is relatively single, mainly providing hot water for heating. This single heating method limits the application range of the molten salt thermal energy storage technology and cannot meet the diverse heating needs in different scenarios. For example, in some industrial fields or special environments, direct use of thermal energy for heating or drying operations may be required, while the traditional hot water heating method cannot meet these needs. Summary of the Invention

[0005] The purpose of the present invention is to provide a molten salt thermal energy storage heating device and its working method to solve one or more of the above-mentioned technical problems. The technical solution disclosed by the present invention is specifically a molten salt thermal energy storage heating device that can quickly heat low-temperature molten salt and has a diverse heating method, which can solve the defects of the existing molten salt thermal energy storage heating technology in terms of heating speed and heating method.

[0006] To achieve the above object, the present invention adopts the following technical solutions: The present invention provides a molten salt thermal energy storage heating device, comprising: a housing provided with a first chamber, a second chamber, a communication groove and a water storage chamber, and a circulation pipe and a water delivery pipe arranged outside the housing; wherein, The first chamber is communicated with the second chamber through the communication groove, and a valve for controlling the molten salt flow rate is arranged on the communication groove; the water storage chamber is sleeved inside or outside the second chamber; wherein, the first chamber is provided with an input port for molten salt to be heated, the second chamber is provided with an output port for molten salt after heat release, the input port for molten salt to be heated is communicated with the output port for molten salt after heat release through the circulation pipe, and a molten salt pump is arranged on the circulation pipe; the water storage chamber is provided with a cold water input port and a hot water output port, the hot water output port is communicated with the water delivery pipe, a water pump is arranged on the water delivery pipe, and the water delivery pipe is used for being communicated with a water supply pipe; a heat insulation sleeve is sleeved and installed outside the water delivery pipe, the heat insulation sleeve is provided with an air inlet and an air outlet, an air delivery pipe is arranged at the air outlet, a fan is arranged on the air delivery pipe, and the air delivery pipe is used for being communicated with an air supply pipe; A driving assembly for driving the mounting rod is arranged on the housing, and a power mechanism for driving the stirring rod and the stirring blades is also arranged.

[0007] A further improvement of the present invention lies in that the driving assembly includes: a driving member and a driving shaft; Wherein, the driving member is installed on the housing, the output end of the driving member is installed with the driving shaft, one end of the driving shaft away from the driving member extends into the first chamber, and the driving shaft is rotatably connected with the housing; a connecting unit is installed on the driving shaft, and one end of the connecting unit away from the driving shaft is connected with the mounting rod.

[0008] A further improvement of the present invention lies in that a scraping plate is arranged at the end of the turning rod arranged on the mounting rod, and the scraping plate is attached to the inner wall of the first chamber.

[0009] A further improvement of the present invention lies in that the turning rod is also installed on the driving shaft.

[0010] A further improvement of the present invention lies in that the power mechanism includes: a driving component and a driving rod; Wherein, the driving component is installed on the housing, the output end of the driving component is installed with the driving rod, one end of the driving rod away from the driving component extends into the second chamber, and the driving rod is rotatably connected with the housing; the driving rod is connected with a driven shaft through a connecting mechanism, the driven shaft penetrates through the side wall of the second chamber and extends into the water storage chamber, the driven shaft is rotatably connected with the side wall of the second chamber, and the stirring blades and the stirring rod are both installed on the driven shaft.

[0011] A further improvement of the present invention lies in that a seal is provided between the driven shaft and the side wall of the second chamber.

[0012] A further improvement of the present invention lies in that a heat insulation layer is provided on the outer wall of the circulation pipe.

[0013] A further improvement of the present invention further includes: a water supply pipe for being arranged on the user side; Wherein, the water supply pipe is provided with a circulating water inlet and a circulating water outlet. The circulating water inlet is communicated with the hot water outlet provided in the water storage chamber, and the circulating water outlet is communicated with the cold water inlet provided in the water storage chamber; the water supply pipe is provided with a first flow regulating valve.

[0014] A further improvement of the present invention further includes: a gas supply pipe for being arranged on the user side; Wherein, the gas supply pipe is provided with a gas supply port and an exhaust port. The gas supply port is communicated with the outlet of the gas transmission pipe, and the exhaust port is emptied or communicated with the air inlet of the heat insulation sleeve.

[0015] The present invention also provides a working method of a molten salt heat storage heating device, including: Heating the molten salt filled in the first chamber by an electric heater; wherein, during the heating process, the driving assembly drives the turning rod to rotate through the mounting rod, and the turning rod stirs the molten salt in the first chamber to make the molten salt uniformly heated; After the molten salt in the first chamber is heated to a preset temperature, it enters the second chamber through the communication groove and exchanges heat with the cold water in the water storage chamber. The heat-exchanged molten salt returns to the first chamber through the circulation pipe, and the heat-exchanged water is output through the water delivery pipe; wherein, during the heat exchange process, the power mechanism drives the stirring rod and the stirring blades to rotate to improve the heat exchange efficiency; During the process of the heat-exchanged water being output through the water delivery pipe, the cold air in the heat insulation sleeve is heated, and the heated air is output through the gas transmission pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects: Although the existing molten salt thermal energy storage heating technology has advantages such as energy conservation, environmental protection, and high energy utilization efficiency, there are still deficiencies in terms of heating speed and heating methods. Therefore, the present invention designs a molten salt thermal energy storage heating device that can quickly heat low-temperature molten salt and has diverse heating methods, which is of great significance for improving the stability and efficiency of thermal energy storage heating and expanding the application scope of molten salt thermal energy storage technology. Specifically, in response to the problem of slow heating speed of low-temperature molten salt, the present invention sets up a driving component, a mounting rod, and a turning rod, and adopts a dynamic stirring design to improve the heating efficiency; sets up a first chamber and a second chamber, and adopts a double-chamber circulation structure to optimize the heat exchange process; sets up a power mechanism, stirring blades, etc. to further accelerate the heat exchange efficiency. In response to the problem of single heating method, the present invention designs a dual-mode output of water heating and gas heating to improve the applicability in multiple scenarios. Further specifically, the division of labor design where the first chamber focuses on molten salt heating and the second chamber is responsible for heat exchange avoids the coupling interference of the traditional single cavity "heating - heat storage - heat release", and together with the regulation of the flow valve in the communication groove, it can achieve a rapid switch between the heating / heat storage states of the molten salt.

[0017] In the preferred embodiment of the present invention, the dynamic stirring means is further optimized. The driving component drives the turning rod and the scraping plate to forcibly stir the molten salt in the first chamber. The fitting design of the scraping plate with the inner wall of the chamber can eliminate the heating dead angle and further improve the uniformity of the molten salt being heated.

[0018] In the preferred embodiment of the present invention, the heat insulation layer of the circulation pipe reduces heat energy loss. Brief Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art; obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 is a schematic structural diagram of a molten salt thermal energy storage heating device in an embodiment of the present invention; Figure 2 is a schematic cross-sectional view of the second chamber in an embodiment of the present invention; Figure 3 is a schematic structural diagram of the driving component in an embodiment of the present invention; Figure 4 is a schematic structural diagram of the connecting mechanism in an embodiment of the present invention; The explanations of the reference numerals in the drawings are as follows: 1. Housing; 2. First chamber; 3. Second chamber; 4. Driving member; 5. Mounting rod; 6. Driving shaft; 7. Connecting unit; 8. Flipping rod; 9. Scraper; 10. Electric heater; 11. Communication groove; 12. Valve; 13. Water storage chamber; 14. Stirring blade; 15. Driven shaft; 17. Driving component; 18. Driving rod; 19. Connecting mechanism; 20. Heat insulation sleeve; 21. Water delivery pipe; 22. Water pump; 23. Water supply pipe; 24. Gas delivery pipe; 25. Fan; 26. Circulation pipe; 27. Molten salt pump. Detailed implementation manner

[0021] To make the objectives, technical solutions, and advantages of the present invention clearer, the following will clearly and completely describe the technical solutions in the present invention in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments of the technical solutions are part of the embodiments of the present invention, not all of the embodiments.

[0022] Based on the technical solutions disclosed in the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0023] Please refer to Figures 1 to 4 , as an embodiment of the present invention, a molten salt thermal energy storage heating device includes a housing 1. A first chamber 2 and a second chamber 3 are provided in the housing 1. A communication groove 11 is opened at the bottom of the first chamber 2. A valve 12 is installed on the communication groove 11. One end of the communication groove 11 away from the first chamber 2 communicates with the second chamber 3. A water storage chamber 13 is provided outside the second chamber 3. A stirring blade 14 is provided in the water storage chamber 13. A stirring rod is provided in the second chamber 3. An electric heater 10 is provided at the bottom of the first chamber 2. A mounting rod 5 is rotatably installed in the first chamber 2. A flipping rod 8 is installed on the mounting rod 5. A driving assembly is installed on the first chamber 2. The driving assembly is connected to the mounting rod 5. Among them, the first chamber 2 is used to introduce molten salt to be heated, the second chamber 3 is used to introduce heated molten salt, and the water storage chamber 13 is used to introduce water to be heated; A circulation pipe 26 is installed at the bottom of the second chamber 3. One end of the circulation pipe 26 away from the second chamber 3 communicates with the first chamber 2. And a molten salt pump 27 is installed on the circulation pipe 26; A power mechanism is installed on the housing 1, a transmission assembly is installed in the second chamber 3, one end of the transmission assembly is connected to the power mechanism, and the end of the transmission assembly far from the power mechanism is respectively connected to the stirring rod and the stirring blade 14; A water delivery pipe 21 is installed on the side wall of the water storage chamber 13. One end of the water delivery pipe 21 far from the water storage chamber 13 is installed with a water supply pipe 23. A water pump 22 is installed on the water delivery pipe 21. A heat insulation sleeve 20 is sleeved on the water delivery pipe 21. An air delivery pipe 24 is arranged at one end of the heat insulation sleeve 20 close to the water supply pipe 23. A blower 25 is installed on the air delivery pipe 24.

[0024] The embodiment of the present invention specifically discloses a molten salt heat storage heating device capable of quickly heating low-temperature molten salt and having diversified heating methods, which is of great significance for improving the stability and efficiency of heat storage heating and expanding the application range of molten salt heat storage technology.

[0025] In an embodiment of the present invention, the driving assembly includes a driving member 4. The driving member 4 is installed on the housing 1. The output end of the driving member 4 is installed with a driving shaft 6. One end of the driving shaft 6 far from the driving member 4 extends into the first chamber 2, and the driving shaft 6 is rotatably connected to the bottom wall of the first chamber 2. A connecting unit 7 is installed on the driving shaft 6. One end of the connecting unit 7 far from the driving shaft 6 is connected to the mounting rod 5. Turning rods 8 are installed on both the mounting rod 5 and the driving shaft 6.

[0026] In an embodiment of the present invention, the power mechanism includes a driving component 17. The output end of the driving component 17 is installed with a driving rod 18. One end of the driving rod 18 far from the driving component 17 extends into the second chamber 3, and the driving rod 18 is rotatably connected to the bottom wall of the second chamber 3; the transmission assembly includes a driven shaft 15. One end of the driven shaft 15 penetrates through the side wall of the second chamber 3 and extends into the water storage chamber 13. The stirring blade 14 and the stirring rod are both installed on the driven shaft 15. A connecting mechanism 19 is installed on the driving rod 18. One end of the connecting mechanism 19 far from the driving rod 18 is connected to the driven shaft 15.

[0027] In a specific embodiment of the present invention, both the driving member 4 and the driving component 17 can be a stepping motor or a servo motor, etc., and no specific description is made here. The connecting unit 7 is a gear set or a pulley set, etc., and no specific description is made here. The connecting mechanism 19 can be a gear set or a combination of a worm and a worm gear, and no specific description is made here.

[0028] As an embodiment of the present invention, a scraping plate 9 is installed at one end of the turning rod 8 far from the mounting rod 5, and the scraping plate 9 is attached to the inner wall of the first chamber 2.

[0029] In the preferred solution of the embodiment of the present invention, a scraping plate 9 is installed at one end of the turning rod 8 away from the mounting rod 5. The scraping plate 9 is attached to the inner wall of the first chamber 2. During the rotation of the turning rod 8, the scraping plate 9 is driven to scrape off the molten salt adhering to the inner wall of the first chamber 2, making the heating of the molten salt more uniform.

[0030] In an embodiment of the present invention, a heat insulation layer is added outside the molten salt circulation path, which can indirectly improve the effective heating rate.

[0031] In the technical solution disclosed above in the embodiment of the present invention, the working principle of the molten salt thermal energy storage heating device is as follows: Power is supplied to the electric heater 10 by connecting to the power supply to heat the low-temperature molten salt in the first chamber 2. During this process, the installed driving member 4 drives the connected drive shaft 6 to rotate. The rotation of the drive shaft 6 drives the mounting rod 5 to rotate through the connecting unit 7. The mounting rod 5 and the drive shaft 6 drive the connected turning rod 8 to rotate. The turning rod 8 rotates to stir the molten salt inside, making the molten salt evenly heated and improving the heating efficiency thereof; After heating the molten salt, the installed valve 12 is opened, and the molten salt is continuously transported into the second chamber 3, so that the molten salt heats the cold water in the water storage chamber 13. During this process, the provided driving component 17 drives the connected drive rod 18 to rotate. The rotation of the drive rod 18 drives the driven shaft 15 to rotate through the connecting mechanism 19. The driven shaft 15 drives the stirring rod and the stirring blade 14 to rotate. The rotation of the stirring rod drives the molten salt to be stirred to improve the heating efficiency of the cold water. At the same time, the provided stirring blade 14 stirs the cold water to improve the fluidity of the water and further accelerate the heating speed of the cold water. When the temperature of the high-temperature molten salt decreases, it circulates back into the first chamber 2 through the circulation pipe 26 for heating. After the cold water is heated, the heated water is transported to the water supply pipe 23 by the water pump 22 installed on the water delivery pipe 21. During this process, the water delivery pipe 21 can heat the air in the heat insulation sleeve 20, heating the cold air into hot air, providing heating for the indoor while providing hot water, improving the practicability of the device.

[0032] The embodiment of the present invention also provides a working method of a molten salt thermal energy storage heating device, including: Heating the molten salt filled in the first chamber by an electric heater; wherein, during the heating process, the driving assembly drives the turning rod to rotate through the mounting rod, and the turning rod stirs the molten salt in the first chamber to make the molten salt evenly heated; After the molten salt in the first chamber is heated to a preset temperature, it enters the second chamber through the communication groove and exchanges heat with the cold water in the water storage chamber. The molten salt after heat exchange returns to the first chamber through the circulation pipe, and the water after heat exchange is output through the water delivery pipe; wherein, during the heat exchange process, the power mechanism drives the stirring rod and the stirring blade to rotate to improve the heat exchange efficiency; During the process of the heated water being output through the water conveyance pipe, the cold air inside the heat insulation sleeve is heated, and the heated air is output through the air conveyance pipe.

[0033] In the technical solution provided by the embodiment of the present invention, through the integrated design of the water conveyance pipe and the heat insulation sleeve, two modes of "hot water heating" and "hot air heating" are realized; by way of example, the hot water mode: in a conventional heating scenario, hot water is directly output through the water conveyance pipe; the hot air mode: in an industrial drying scenario, forced convection is carried out by the air conveyance pipe fan, and hot air can be output (the temperature is controlled by adjusting the opening degree of the air inlet).

[0034] In the preferred technical solution of the embodiment of the present invention, a first flow regulating valve is arranged on the water supply pipe, and in cooperation with the exhaust port circulation design of the air supply pipe, it can be realized according to user needs: single hot water supply, single hot air supply, cascaded utilization of hot water (heating first and then preheating the intake air), which can improve the comprehensive energy utilization rate of the system.

[0035] In summary, the embodiment of the present invention discloses a molten salt heat storage heating device, which includes a housing. A first chamber, a second chamber, a stirring rod, a turning rod, a water storage chamber, a driving assembly, a power mechanism and a transmission assembly are arranged in the housing. The electric heater heats the low-temperature molten salt in the first chamber. The driving assembly drives the mounting rod to rotate, the mounting rod drives the turning rod to rotate, and the turning rod rotates to stir the molten salt inside. By opening the installed valve, the molten salt is continuously conveyed into the second chamber, and then the molten salt heats the cold water in the water storage chamber. During this process, the power mechanism drives the transmission assembly to operate, and the transmission assembly drives the stirring rod and the stirring blades to rotate. After the cold water is heated, the heated water is conveyed into the water supply pipe through the water pump installed on the water conveyance pipe. During this process, the water conveyance pipe can heat the air inside the heat insulation sleeve, heating the cold air into hot air, providing hot water and heating the room at the same time, improving the practicability of the device.

[0036] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights. In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A molten salt thermal energy storage heating device, characterized in that it includes: a housing (1) provided with a first chamber (2), a second chamber (3), a connecting groove (11) and a water storage chamber (13), and a circulation pipe (26) and a water supply pipe (21) arranged outside the housing (1); wherein, the first chamber (2) is communicated with the second chamber (3) through the connecting groove (11), and a valve (12) for controlling the molten salt flow rate is arranged on the connecting groove (11); the water storage chamber (13) is sleeved inside or outside the second chamber (3); wherein, the first chamber (2) is provided with an input port for molten salt to be heated, the second chamber (3) is provided with an output port for molten salt after heat release, the input port for molten salt to be heated is communicated with the output port for molten salt after heat release through the circulation pipe (26), and a molten salt pump (27) is arranged on the circulation pipe (26); the water storage chamber (13) is provided with a cold water input port and a hot water output port, the hot water output port is communicated with the water supply pipe (21), a water pump (22) is arranged on the water supply pipe (21), and the water supply pipe (21) is used for being communicated with a water supply pipeline; a heat insulation sleeve (20) is sleeved and installed outside the water supply pipe (21), the heat insulation sleeve (20) is provided with an air inlet and an air outlet, an air delivery pipe (24) is arranged at the air outlet, a fan (25) is arranged on the air delivery pipe (24), and the air delivery pipe (24) is used for being communicated with an air supply pipeline; a driving assembly for driving the mounting rod (5) is arranged on the housing (1), and a power mechanism for driving the stirring rod and the stirring blade (14) is also arranged.

2. The molten salt thermal energy storage heating device according to claim 1, characterized in that the driving assembly includes: a driving member (4) and a driving shaft (6); wherein, the driving member (4) is installed on the housing (1), the output end of the driving member (4) is installed with the driving shaft (6), one end of the driving shaft (6) far away from the driving member (4) extends into the first chamber (2), and the driving shaft (6) is rotatably connected with the housing (1); a connecting unit (7) is installed on the driving shaft (6), and one end of the connecting unit (7) far away from the driving shaft (6) is connected with the mounting rod (5).

3. The molten salt thermal energy storage heating device according to claim 2, characterized in that a scraping plate (9) is arranged at the end of the turning rod (8) arranged on the mounting rod (5), and the scraping plate (9) is attached to the inner wall of the first chamber (2).

4. The molten salt thermal energy storage heating device according to claim 2, characterized in that the turning rod (8) is also installed on the driving shaft (6).

5. The molten salt thermal energy storage heating device according to claim 1, characterized in that the power mechanism includes: a driving component (17) and a driving rod (18); Among them, the driving component (17) is installed on the housing (1). The driving rod (18) is installed at the output end of the driving component (17). One end of the driving rod (18) far from the driving component (17) extends into the second chamber (3), and the driving rod (18) is rotatably connected to the housing (1); the driving rod (18) is connected to the driven shaft (15) through a connecting mechanism (19). The driven shaft (15) penetrates through the side wall of the second chamber (3) and extends into the water storage chamber (13). The driven shaft (15) is rotatably connected to the side wall of the second chamber (3). The stirring blade (14) and the stirring rod are both installed on the driven shaft (15).

6. The molten salt heat storage heating device according to claim 5, characterized in that A seal is provided between the driven shaft (15) and the side wall of the second chamber (3).

7. The molten salt heat storage heating device according to claim 1, characterized in that The outer wall of the circulation pipe (26) is provided with a heat insulation and heat preservation layer.

8. The molten salt heat storage heating device according to claim 1, characterized in that It further includes: a water supply pipe (23) for being arranged on the user side; Among them, the water supply pipe (23) is provided with a circulating water inlet and a circulating water outlet. The circulating water inlet is communicated with the hot water outlet provided in the water storage chamber (13), and the circulating water outlet is communicated with the cold water inlet provided in the water storage chamber (13); the water supply pipe (23) is provided with a first flow regulating valve.

9. The molten salt heat storage heating device according to claim 1, characterized in that It further includes: a gas supply pipe for being arranged on the user side; Among them, the gas supply pipe is provided with a gas supply port and an exhaust port. The gas supply port is communicated with the outlet of the gas transmission pipe (24), and the exhaust port is emptied or communicated with the air inlet of the heat insulation sleeve (20).

10. A working method of the molten salt heat storage heating device according to claim 1, characterized in that, It includes: The molten salt filled in the first chamber (2) is heated by an electric heater (10); among them, during the heating process, the driving assembly drives the turning rod (8) to rotate through the mounting rod (5), and the turning rod (8) stirs the molten salt in the first chamber (2) to make the molten salt evenly heated; After the molten salt in the first chamber (2) is heated to a preset temperature, it enters the second chamber (3) through the communication groove (11) and exchanges heat with the cold water in the water storage chamber (13). The heat-exchanged molten salt returns to the first chamber (2) through the circulation pipe (26), and the heat-exchanged water is output through the water transmission pipe (21); among them, during the heat exchange process, the power mechanism drives the stirring rod and the stirring blade (14) to rotate to improve the heat exchange efficiency; During the process of the heat-exchanged water being output through the water transmission pipe (21), the cold air in the heat insulation sleeve (20) is heated, and the heated air is output through the gas transmission pipe (24).

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