System for on-line conversion of sodium source into heat energy and hydrogen

Abstract

The invention discloses a system for on-line conversion of a sodium source into heat energy and hydrogen, which is characterized in that a pipe orifice of a sodium injection pipe is arranged at the upper end of a reactor, a sodium reaction baffle is arranged below the pipe orifice, a sodium hydroxide solution channel is arranged on the sodium reaction baffle, or a sodium hydroxide solution channel is arranged between the sodium reaction baffle and the side wall of the reactor. The speed of the input water vapor is controlled, so that the concentration of the water vapor in the reactor is maintained in a relatively low range, and the highest temperature in the reactor is controlled to be less than 300 DEG C by adjusting the sodium injection one-way valve or / and adjusting the water vapor injection one-way valve or / and adjusting the heat exchange amount of the condenser, so that sodium combustion caused by over-high temperature is avoided; corrosion of high-temperature substances to equipment is effectively relieved; the arranged sodium reaction baffle can enable a sodium hydroxide solution coating layer with high density and low viscosity to be separated from sodium, so that the surface of the sodium is exposed, rapid oxidation of the sodium and low-concentration water vapor is realized, and relatively high productivity efficiency is maintained.

Description

Technical Field

[0001] The invention relates to an energy generation system, in particular to a system for online conversion of a sodium source into thermal energy and hydrogen. Background Art

[0002] Energy is the material basis for the development of human society, economy and science and technology. The construction of an efficient and low-carbon renewable energy system has led to the rapid development of environmentally friendly energy such as hydropower, wind power, photovoltaic power generation and hydrogen energy. However, while accelerating the development and utilization of clean energy, hydropower, wind power and photovoltaic power generation have encountered problems such as difficulty in storage, transmission and consumption. Ultra-long-term energy storage is an important technology that can transfer energy across seasons, ensure power supply in extreme weather, and improve the efficiency of renewable energy development. However, the existing long-term energy storage technology has a short operating time, small capacity and high operating cost, and cannot be applied on a large scale.

[0003] Low-cost ultra-long-term energy storage of metallic sodium is a key technology to solve the mismatch between the large-scale supply of renewable energy and the time and space of electricity demand. Sodium energy storage has the characteristics of lowest emissions, least materials, and simplest processes. Renewable energy is converted into electricity and then electrolyzed to produce sodium. Sodium is stored in a sealed container as a long-term energy reserve to protect it from humidity and ambient atmosphere; or it is transported to areas where energy is needed to release energy. Hydrogen and sodium hydroxide are flexibly used in different scenarios, such as as basic chemical raw materials or energy storage cycles. This overcomes the bottleneck of large-scale development of renewable energy and alleviates the pressure and risks of long-distance energy transportation. The technologies for the production, storage, and transportation of sodium are very mature. The key issue that needs to be solved now is to ensure that the highly reducing sodium reacts safely with water and releases energy smoothly.

[0004] Based on the chemical reaction mechanism, sodium has strong reducing properties and can react quickly with water vapor. Two moles of water vapor react with sodium to generate one mole of hydrogen. Since the number of gas molecules in the system is reduced, as long as the reaction rate is controlled and the generated heat is conducted away in time, the sodium can be released safely. The Chinese invention patent application with patent application number 202311443501.2 discloses "a system for online conversion of sodium source into heat energy and hydrogen", and the technical scheme recorded is as follows: a closed reactor is provided, a lye discharge pipe is provided at the bottom of the reactor, a drain valve is provided on the lye discharge pipe, a hydrogen collecting pipe is provided at the upper end of the reactor, a pressure reducing valve is provided on the hydrogen collecting pipe, a heat exchanger, a temperature sensor and a pressure sensor are provided in the reactor, a liquid sodium injection pipe and a water vapor injection pipe are provided below the reactor, a liquid sodium injection check valve is provided on the liquid sodium injection pipe, a water vapor injection check valve is provided on the water vapor injection pipe, the liquid sodium injection pipe and the water vapor injection pipe are both located in the reactor and the outlet end of the liquid sodium injection pipe is located above the outlet end of the water vapor injection pipe; the heat exchanger is an upper and lower arranged heat exchanger with the refrigerant inlet at the top and the refrigerant outlet at the bottom, a heat exchange valve is provided at the refrigerant inlet, and the temperature sensor is located at the upper end of the heat exchanger; Follow the steps below: Step 1. Fill the reactor with hydrogen; Step 2. Open the heat exchange valve; Step 3. Open the liquid sodium injection check valve and the water vapor injection check valve; Step 4. The injected liquid sodium undergoes a combustion reaction after contacting with water vapor to generate hydrogen, high-temperature water vapor and sodium hydroxide; the heat exchange valve, the liquid sodium injection check valve and the water vapor injection check valve are controlled so that the temperature of the hydrogen and the high-temperature water vapor after passing through the heat exchanger is lower than 70°C, and the hydrogen is discharged from the hydrogen collection pipe through the pressure reducing valve, and the pressure reducing valve adjusts the pressure in the reactor to 0.1-10Mpa; the high-temperature water vapor condenses to the bottom of the water flow reactor after passing through the heat exchanger, and the drain valve is controlled so that the height of the sodium hydroxide solution is lower than the outlet end of the water vapor injection pipe.

[0005] This patent application has the following advantages: 1. Water vapor is directly used as the reaction raw material, avoiding the safety hazards such as explosion caused by volume expansion due to the phase change of water into water vapor when heated in the existing technology; 2. After being heated, the water vapor will further heat up to form high-temperature gas, which will exchange heat with the cold enzyme in the heat exchanger to form a higher temperature heat source, meeting the needs of industrial production for high-temperature heat sources. At the same time, the water vapor will condense to form water, which is effectively separated from the hydrogen.

[0006] 3. The product (hydrogen) that does not react with water vapor and sodium is used as the protective gas to ensure the safe combustion of the sodium-water reaction.

[0007] 4. No need to add kerosene, which can avoid the purification of sodium hydroxide solution, simple operation and reduced operating costs.

[0008] Since liquid sodium is composed of tiny particles of metallic sodium, if the concentration of the injected water vapor is low, the reaction between liquid sodium and water vapor is mild, and the surface of the sodium during the reaction will be covered with a layer of sodium hydroxide solution containing bubbles. Subsequent water vapor needs to pass through this sodium hydroxide solution protective layer to react with sodium, making the subsequent reaction rate very slow. In order to increase the reaction rate of sodium and water vapor and ensure that the reaction is complete, it is necessary to inject high-temperature and high-concentration water vapor into the reactor so that the liquid sodium entering the reactor quickly burns with the water vapor, and the water vapor that does not participate in the reaction will absorb heat and form high-temperature water vapor of thousands of degrees Celsius. At this time, part of the sodium hydroxide can form aerogel at high temperature and diffuse in the reactor. High temperature and diffused sodium hydroxide aerogel will cause serious corrosion to the equipment, making the corrosion resistance of the equipment material very high, directly increasing the operating cost of sodium energy release. Summary of the invention

[0009] The present invention aims to solve the above-mentioned technical problems existing in the prior art and provides a system for online conversion of a sodium source into heat energy and hydrogen.

[0010] The technical solution of the present invention is: a system for converting a sodium source into heat energy and hydrogen online, which is provided with a closed reactor, a lye discharge pipe is provided at the bottom of the reactor, a drain valve is provided on the lye discharge pipe, a hydrogen collecting pipe is provided at the upper end of the reactor, a pressure reducing valve is provided on the hydrogen collecting pipe, a condenser, a temperature sensor, a pressure sensor, a sodium injection pipe and a water vapor injection pipe are provided in the reactor, a sodium injection check valve is provided on the sodium injection pipe, a water vapor injection check valve is provided on the water vapor injection pipe, a pipe mouth of the sodium injection pipe is located at the upper end of the reactor and a sodium reaction baffle is provided below the pipe mouth, and a sodium hydroxide solution channel is provided on the sodium reaction baffle or between the sodium reaction baffle and the side wall of the reactor; Follow the steps below: Step 1. Fill the reactor with hydrogen; Step 2. Open the condenser; Step 3. Open the sodium injection check valve to inject sodium so that the sodium falls on the sodium reaction baffle; Step 4. Open the water vapor injection check valve and inject water vapor; Step 5. Sodium undergoes an oxidation reaction after contacting with water vapor to generate hydrogen and sodium hydroxide; the generated hydrogen is collected by a hydrogen collecting pipe, and the pressure in the reactor is adjusted to 0.1-0.5 MPa by a pressure reducing valve; the generated sodium hydroxide absorbs water to form a sodium hydroxide solution, which flows downward to the bottom of the reactor through the sodium hydroxide solution channel (10) and is finally discharged from the alkali solution discharge pipe; Step 6. During the reaction, the sodium injection check valve and / or the water vapor injection check valve and / or the heat exchange capacity of the condenser are adjusted to control the maximum temperature in the reactor to be less than 300° C. until the reaction is completed.

[0011] Preferably, the water vapor injection pipe is arranged in the lower middle part of the reactor and a water vapor buffer chamber is arranged between the water vapor injection one-way valve and the reactor, a hydrogen branch pipe is arranged outside the reactor, one end of the hydrogen branch pipe is connected to the hydrogen collecting pipe in front of the pressure reducing valve, and the other end is connected to the water vapor buffer chamber through an air pump, and a hydrogen condenser is arranged around the hydrogen branch pipe.

[0012] Preferably, the sodium reaction baffle is replaced by a condenser, that is, the condenser is arranged below the pipe mouth. There is a sodium hydroxide solution channel on the condenser or between the condenser and the side wall of the reactor.

[0013] Preferably, the sodium reaction baffles are at least two, one above the other, arranged opposite to each other, one end of each sodium reaction baffle being connected to the reactor side wall, and the other end being inclined downward, and a serpentine sodium hydroxide solution channel is formed between the sodium reaction baffle and the reactor side wall.

[0014] Preferably, the number of the condensers is equal to the sodium reaction baffles and they are arranged under each sodium reaction baffle in a one-to-one correspondence.

[0015] Preferably, there are at least two sodium reaction baffles arranged in an upper and lower arrangement, the mesh on each sodium reaction baffle forms a sodium hydroxide solution channel and the mesh size decreases from the upper layer to the lower layer.

[0016] The present invention arranges the nozzle of the sodium injection pipe at the upper end of the reactor and arranges a sodium reaction baffle below the nozzle, and there is a sodium hydroxide solution channel on the sodium reaction baffle, or there is a sodium hydroxide solution channel between the sodium reaction baffle and the side wall of the reactor. The water vapor input is of low concentration, and the reaction of the injected sodium and the water vapor is mild rather than burning, so that by adjusting the sodium injection check valve or / and adjusting the water vapor injection check valve or / and adjusting the heat exchange of the condenser, it can be controlled under the condition of the maximum temperature being less than 300°C, so that the surface of the metallic sodium undergoes an oxidation reaction, so as to avoid the generation of sodium hydroxide aerogel due to excessively high temperature, effectively avoid the corrosion of the equipment caused by high temperature and diffused aerogel, and there is no need to make excessively high requirements on the corrosion resistance of the equipment material, so as to effectively reduce the operating cost of sodium energy release. At the same time, although the reaction is coated with a layer of sodium hydroxide solution on the surface of the sodium, the sodium reaction baffle arranged can separate the sodium hydroxide solution with high density and low viscosity from the sodium, and flow down to the bottom of the reactor along the sodium hydroxide solution channel, so that the surface of the sodium is exposed, and the rapid oxidation of sodium and low-concentration water vapor is realized, and a high production efficiency is maintained. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of embodiment 1 of the present invention.

[0018] Figure 2 It is a schematic diagram of the structure of embodiment 2 of the present invention.

[0019] Figure 3 It is a structural diagram of embodiment 3 of the present invention. DETAILED DESCRIPTION Example 1

[0020] A system for converting a sodium source into heat energy and hydrogen online according to the present invention is as follows: Figure 1 As shown, the same as the prior art is that a closed reactor 1 is provided, a lye discharge pipe 2 is provided at the bottom of the reactor 1, a drain valve 2-1 is provided on the lye discharge pipe 2, a hydrogen collecting pipe 3 is provided at the upper end of the reactor 1, a pressure reducing valve 3-1 is provided on the hydrogen collecting pipe 3, a condenser 4, a temperature sensor 5, a pressure sensor 6, a sodium injection pipe 7 and a water vapor injection pipe 8 are provided in the reactor 1, a sodium injection check valve 7-1 is provided on the sodium injection pipe 7, a water vapor injection check valve 8-1 is provided on the water vapor injection pipe 8, and the difference from the prior art is that the pipe mouth 7-1 of the sodium injection pipe 7 A sodium reaction baffle 9 is arranged at the upper end of the reactor 1 and below the nozzle 7-2. The sodium reaction baffles 9 are at least two and arranged opposite to each other, that is, one end of each sodium reaction baffle 9 is connected to the side wall of the reactor 1, and the other end is inclined downward by 4-10 degrees. A serpentine sodium hydroxide solution channel 10 is formed between the sodium reaction baffle 9 and the side wall of the reactor 1. At the same time, the number of the condensers 4 is equal to that of the sodium reaction baffles 9 and they are arranged under each sodium reaction baffle 9 in a one-to-one correspondence. The temperature sensor 5 can be multiple and distributed at different positions in the reactor 1; Follow the steps below: Step 1. Filling the reactor 1 with hydrogen; Step 2. Open the condenser 4 and inject a refrigerant into the condenser 4. The refrigerant may be mineral oil, low-temperature gas, etc. that can fully carry heat; Step 3: Open the sodium injection check valve 7-1 to inject sodium, so that the sodium falls on the sodium reaction baffle 9; Step 4. Open the water vapor injection check valve 8-1, inject water vapor, and control the water vapor concentration in the reactor 1 to be less than 20%; Step 5. Sodium immediately reacts with water vapor on the surface to generate hydrogen and sodium hydroxide. The generated hydrogen is collected by the hydrogen collecting pipe 3, and the pressure in the reactor 1 is adjusted to 0.2 Mpa by the pressure reducing valve 3-1; the generated sodium hydroxide absorbs water to form a sodium hydroxide solution. Since the sodium hydroxide solution has a large density and a small viscosity, it can be separated from the metallic sodium in the process of rolling down along the sodium hydroxide solution channel 10, and then flows to the bottom of the reactor under the action of gravity. At this time, the sodium surface is exposed and continues to react with water vapor, that is, the sodium hydroxide solution covers and detaches from the sodium surface alternately; Step 6. During the reaction, the sodium injection check valve 7-1 and / or the water vapor injection check valve 8-1 and / or the heat exchange capacity of the condenser 4 are adjusted to control the maximum temperature in the reactor 1 to be less than 300° C. until the reaction is completed.

[0021] Embodiment 2: A system for converting a sodium source into heat energy and hydrogen online according to the present invention is as follows: Figure 2 As shown, the same as the prior art is that a closed reactor 1 is provided, an alkali liquid discharge pipe 2 is provided at the bottom of the reactor 1, a drain valve 2-1 is provided on the alkali liquid discharge pipe 2, a hydrogen collecting pipe 3 is provided at the upper end of the reactor 1, a pressure reducing valve 3-1 is provided on the hydrogen collecting pipe 3, a condenser 4, a temperature sensor 5, a pressure sensor 6, a sodium injection pipe 7 and a water vapor injection pipe 8 are provided in the reactor 1, a sodium injection check valve 7-1 is provided on the sodium injection pipe 7, and a water vapor injection check valve 8-1 is provided on the water vapor injection pipe 8. The difference from the prior art is that the pipe mouth 7-2 of the sodium injection pipe 7 is located at the upper end of the reactor 1 and a sodium reaction baffle 9 is provided below the pipe mouth 7-2. The sodium reaction baffle 9 is at least two mesh plates arranged up and down, and the mesh plate can be a mesh with holes punched out of a matrix on a metal plate, or can be a mesh woven with metal wire. The mesh on each sodium reaction baffle 9 forms a sodium hydroxide solution channel 10 and the mesh size decreases from the upper layer to the lower layer, and the size of the mesh on the uppermost layer should be smaller than the size of the sodium particles carried; the number of the condensers 4 is equal to the sodium reaction baffles 9 and they are arranged under each sodium reaction baffle 9 in a one-to-one correspondence, and the temperature sensor 5 can be multiple and distributed at different positions in the reactor 1; the water vapor injection pipe 8 is arranged in the middle or lower part of the reactor 1 and a water vapor buffer chamber 8-2 is arranged between the water vapor injection check valve 8-1 and the reactor 1, and a hydrogen branch pipe 11 is arranged outside the reactor 1, one end of the hydrogen branch pipe 11 is connected to the hydrogen collecting pipe 3 before the pressure reducing valve 3-1, and the other end is communicated with the water vapor buffer chamber 8-2 through an air pump 11-1, and a hydrogen condenser 11-2 is arranged around the hydrogen branch pipe 11.

[0022] Follow the steps below: Step 1. Filling the reactor 1 with hydrogen; Step 2. Open the condenser 4 and inject a refrigerant into the condenser 4. The refrigerant may be mineral oil, low-temperature gas, etc. that can fully carry heat; Step 3. Open the sodium injection check valve 7-1 to inject sodium, so that the sodium falls on the sodium reaction baffle 9, and then has a tendency to pass through the sodium hydroxide solution channel 10. However, since the size of the sodium is larger than the sodium hydroxide solution channel 10 at this time, it cannot pass through the sodium hydroxide solution channel 10 temporarily; Step 4. Open the water vapor injection check valve 8-1 and inject water vapor. At the same time, start the air pump 11-1 and the hydrogen condenser 11-2. The hydrogen in the reactor 1 can be further condensed along the hydrogen branch pipe 11 and enter the water vapor buffer chamber 8-2. After mixing with the water vapor, it enters the reactor 1, thereby controlling the water vapor concentration in the reactor 1 to be less than 20%; Step 5. Sodium reacts with water vapor during the suspension process to generate hydrogen and sodium hydroxide. The generated hydrogen is collected by the hydrogen collecting pipe 3, and the pressure in the reactor 1 is adjusted to 0.2 Mpa by the pressure reducing valve 3-1; the generated sodium hydroxide absorbs water to form a sodium hydroxide solution and adheres to the surface of the sodium. As the sodium hydroxide continues to absorb water, it detaches from the surface of the metallic sodium and drips downward along the solution channel 10, and then flows to the bottom of the reactor under the action of gravity. At this time, the sodium surface is exposed and continues to react with water vapor; when the sodium reacts to be smaller than the sodium hydroxide solution channel 10, it falls to the second layer of sodium reaction baffle 9... That is, the sodium hydroxide solution covers and detaches from the sodium surface alternately; Step 6. During the reaction, the sodium injection check valve 7-1 and / or the water vapor injection check valve 8-1 and / or the heat exchange capacity of the condenser 4 are adjusted to control the maximum temperature in the reactor 1 to be less than 300° C. until the reaction is completed.

[0023] Embodiment 3: A system for converting a sodium source into heat energy and hydrogen online according to the present invention is as follows: Figure 3 As shown, the same as the prior art is that a closed reactor 1 is provided, an alkali liquid discharge pipe 2 is provided at the bottom of the reactor 1, a drain valve 2-1 is provided on the alkali liquid discharge pipe 2, a hydrogen collecting pipe 3 is provided at the upper end of the reactor 1, a pressure reducing valve 3-1 is provided on the hydrogen collecting pipe 3, a condenser 4, a temperature sensor 5, a pressure sensor 6, a sodium injection pipe 7 and a water vapor injection pipe 8 are provided in the reactor 1, a sodium injection check valve 7-1 is provided on the sodium injection pipe 7, a water vapor injection check valve 8-1 is provided on the water vapor injection pipe 8, a pipe mouth 7-2 of the sodium injection pipe 7 is located at the upper end of the reactor 1 and the condenser 4 is arranged below the pipe mouth 7-2, the condenser 4 can be in any form such as spiral, serpentine and plate-shaped, so as to form a sodium hydroxide solution channel 10 on the condenser or between the condenser and the side wall of the reactor, that is, the function of the reaction baffle 9 is integrated in the condenser 4, and at this time, there is no need to set a reaction baffle 9 separately, and the temperature sensor 5 can be multiple and distributed at different positions in the reactor 1; Follow the steps below: Step 1. Filling the reactor 1 with hydrogen; Step 2. Open the condenser 4 and inject a refrigerant into the condenser 4. The refrigerant may be mineral oil, low-temperature gas, etc. that can fully carry heat; Step 3: Open the sodium injection check valve 7-1 to inject sodium, so that the sodium falls on the condenser 4; Step 4. Open the water vapor injection check valve 8-1, inject water vapor, and control the water vapor concentration in the reactor 1 to be less than 20%; Step 5. Sodium immediately reacts with water vapor on the surface to generate hydrogen and sodium hydroxide. The generated hydrogen is collected by the hydrogen collecting pipe 3, and the pressure in the reactor 1 is adjusted to 0.2 Mpa by the pressure reducing valve 3-1; the generated sodium hydroxide absorbs water to form a sodium hydroxide solution. Since the sodium hydroxide solution has a large density and a small viscosity, it can be separated from the metallic sodium in the process of rolling down along the sodium hydroxide solution channel 10, and then flows to the bottom of the reactor under the action of gravity. At this time, the sodium surface is exposed and continues to react with water vapor, that is, the sodium hydroxide solution covers and detaches from the sodium surface alternately; Step 6. During the reaction, the sodium injection check valve 7-1 and / or the water vapor injection check valve 8-1 and / or the heat exchange capacity of the condenser 4 are adjusted to control the maximum temperature in the reactor 1 to be less than 300° C. until the reaction is completed.

Claims

1. A system for online conversion of a sodium source into heat energy and hydrogen, comprising a closed reactor (1), a lye discharge pipe (2) at the bottom of the reactor (1), a drain valve (2-1) on the lye discharge pipe (2), a hydrogen collection pipe (3) at the upper end of the reactor (1), a pressure reducing valve (3-1) on the hydrogen collection pipe (3), a condenser (4), a temperature sensor (5), a pressure sensor (6), a sodium injection pipe (7) and a water vapor injection pipe (8) in the reactor (1), a sodium injection check valve (7-1) on the sodium injection pipe (7), and a water vapor injection check valve (8-1) on the water vapor injection pipe (8), characterized in that: The pipe opening (7-2) of the sodium injection pipe (7) is located at the upper end of the reactor (1) and a sodium reaction baffle (9) is arranged below the pipe opening (7-2), and a sodium hydroxide solution channel (10) is arranged on the sodium reaction baffle (9) or between the sodium reaction baffle (9) and the side wall of the reactor (1); Follow the steps below: Step 1. Filling the reactor (1) with hydrogen; Step 2. Open the condenser (4); Step 3. Open the sodium injection check valve (7-1) to inject sodium so that the sodium falls on the sodium reaction baffle (9); Step 4. Open the water vapor injection check valve (8-1) and inject water vapor; Step 5. Sodium undergoes an oxidation reaction after contacting with water vapor to generate hydrogen and sodium hydroxide; the generated hydrogen is collected by a hydrogen collecting pipe (3), and the pressure in the reactor (1) is adjusted to 0.1-0.5 MPa by a pressure reducing valve (3-1); the generated sodium hydroxide absorbs water to form a sodium hydroxide solution, which flows downward to the bottom of the reactor (1) through a sodium hydroxide solution channel (10) and is finally discharged from an alkali solution discharge pipe (2); Step 6. During the reaction, the sodium injection check valve (7-1) or / and the water vapor injection check valve (8-1) or / and the heat exchange capacity of the condenser (4) are adjusted to control the maximum temperature in the reactor (1) to be less than 300° C. until the reaction is completed.

2. The system for online conversion of sodium source into heat energy and hydrogen according to claim 1, characterized in that: The water vapor injection pipe (8) is arranged at the middle and lower part of the reactor (1), and a water vapor buffer chamber (8-2) is arranged between the water vapor injection check valve (8-1) and the reactor (1). A hydrogen branch pipe (11) is arranged outside the reactor (1). One end of the hydrogen branch pipe (11) is connected to the hydrogen collection pipe (3) in front of the pressure reducing valve (3-1), and the other end is connected to the water vapor buffer chamber (8-2) through an air pump (11-1). A hydrogen condenser (11-2) is arranged around the hydrogen branch pipe (11).

3. The system for online conversion of sodium source into heat energy and hydrogen according to claim 1, characterized in that: The sodium reaction baffle (9) is replaced by a condenser (4), that is, the condenser (4) is arranged below the pipe opening (7-2), and a sodium hydroxide solution channel (10) is provided between the upper or condenser (4) and the side wall of the reactor (1).

4. The system for online conversion of sodium source into heat energy and hydrogen according to claim 1, characterized in that: The sodium reaction baffles (9) are at least two, one above the other, and are arranged opposite to each other. One end of each sodium reaction baffle (9) is connected to the side wall of the reactor (1), and the other end is inclined downward. A serpentine sodium hydroxide solution channel (10) is formed between the sodium reaction baffles (9) and the side wall of the reactor (1).

5. The system for online conversion of sodium source into heat energy and hydrogen according to claim 4, characterized in that: The number of the condensers (4) is equal to the number of the sodium reaction baffles (9), and they are arranged under each sodium reaction baffle (9) in a one-to-one correspondence.

6. The system for online conversion of sodium source into heat energy and hydrogen according to claim 2, characterized in that: The sodium reaction baffles (9) are at least two mesh plates arranged up and down, the meshes on each sodium reaction baffle (9) forming a sodium hydroxide solution channel (10), and the mesh size decreases from the upper layer to the lower layer.

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