Superconductor extending type off-peak electricity heat storage steam generator

Abstract

The invention relates to a superconductor extending type off-peak electricity heat storage steam generator which comprises a tank container, a heat storage medium filled in the tank container, a plurality of superconductive heat conductors arranged in the tank container and extending out of the side wall of the tank container, and a steam generation chamber, one part of each heat conductor is arranged in the tank container, and the other part of each heat conductor is arranged in the tank container. One part of the heat conductor is arranged in the tank container, the other part of the heat conductor is arranged in the steam generation chamber, the heat conductor is used for transferring heat in the tank container into the steam generation chamber, a spraying device connected with a water source pipe is arranged in the steam generation chamber, the spraying device sprays water to the outer surface of the heat conductor in the steam generation chamber, and the heat conductor heats the water into steam; the device has the advantages that the heat of the fused salt in the tank container is guided into the steam generation chamber through the superconducting heat conductor, steam generation is carried out in the steam generation chamber, and due to the fact that the mode does not need to be carried out in the tank container, the safety degree is higher, and the steam generation amount is controllable.

Description

Technical Field

[0001] The invention relates to the technical field of clean energy, and in particular to a superconductor extended valley electricity thermal storage steam generator. Background Art

[0002] Steam generator is a mechanical device that uses the thermal energy of fuel or other energy to heat water into steam, and plays a very important role in production and life. With the rapid development of small and medium-sized enterprises, the demand for steam in society is increasing. At present, most traditional steam generation equipment uses coal, natural gas, biomass, electricity, etc. However, as my country gradually pays more attention to the environment, coal and biomass have been gradually abandoned in the field of steam generation, and the price of natural gas is much higher than that of coal, resulting in high steam prices on the market.

[0003] Electricity is a clean energy source. Currently, electricity is used as an energy source to replace coal, natural gas, oil and other combustible raw materials. Although it does not cause air pollution, the cost of using electricity is too high. In particular, the peak-valley electricity prices and the flat-term electricity prices are several times the cost of coal. The cost of valley electricity is equal to the price of coal, resulting in the vigorous development of valley electricity thermal storage in the field of evaporation.

[0004] At present, most valley power thermal storage steam generators use electricity to heat molten salt and other thermal storage media during valley power periods to store thermal energy, which is then used in other periods. However, due to the extremely large temperature difference between molten salt and other thermal storage media and water, the maximum temperature difference exceeds 500 degrees Celsius. Such a large temperature difference makes it easy for traditional steam generators to have accidents when using valley power thermal storage media, just like exploding like a bomb. Summary of the invention

[0005] In view of the above problems, the purpose of the present invention is to provide a superconductor extended valley electricity thermal storage steam generator for effectively extracting heat from a molten salt tank and producing steam, so as to overcome the above-mentioned deficiencies of the prior art.

[0006] To achieve the above object, the present invention adopts the following technical solution:

[0007] A superconductor extension-type valley electricity thermal storage steam generator comprises: a tank container, a heat storage medium filled in the tank container, a plurality of superconducting heat conductors arranged in the tank container and extending from the side wall of the tank container, and a steam generating chamber, wherein a part of the heat conductor is arranged in the tank container, and another part is arranged in the steam generating chamber, the heat conductor is used to transfer the heat in the tank container to the steam generating chamber, a spray device connected to a water source pipe is arranged in the steam generating chamber, the spray device sprays water to the outer surface of the heat conductor located in the steam generating chamber, and the heat conductor heats the water into steam.

[0008] As a preferred embodiment of the present invention, the steam generating chamber is an open steam generating chamber, the opening of the open steam generating chamber is connected to a steam pipe, and the steam generated in the steam generating chamber is transmitted to the outside through the steam pipe.

[0009] As a preferred embodiment of the present invention, a heat exchange unit for increasing the contact area with water is connected to the portion of the heat conductor located in the steam generating chamber.

[0010] As a preferred embodiment of the present invention, the heat exchange unit is spherical or cylindrical, and is sleeved on the portion of the heat conductor located in the steam generating chamber.

[0011] As a preferred embodiment of the present invention, the space between the inner wall of the heat exchange unit and the outer wall of the heat conductor is hollow, or the space between the inner wall of the heat exchange unit and the outer wall of the heat conductor is filled with a heat conducting medium.

[0012] As a preferred embodiment of the present invention, the heat conductor is a high-temperature superconducting column, two-thirds of the high-temperature superconducting column is placed inside the tank container, and one-third of the high-temperature superconducting column is placed inside the steam generating chamber. The heat conductor is a heat exchanger tube, and the heat exchanger tube is filled with a superconducting medium. The heat exchanger tube is used to conduct the heat inside the tank container into the steam generating chamber.

[0013] As a preferred embodiment of the present invention, the heat exchanger tube is divided into a heat exchange section placed inside the tank container, and a steam generating section placed inside the steam generating chamber.

[0014] As a preferred embodiment of the present invention, the shape of the steam generating section is spherical or cylindrical, wherein the spherical and cylindrical surfaces are in contact with water to generate steam.

[0015] As a preferred embodiment of the present invention, a heater for heating molten salt is installed on the tank container, and the heater heats the molten salt during the valley power period. The outer wall of the tank container is provided with a thermal insulation layer.

[0016] Another object of the present invention is to provide a superconductor extension-type valley electricity thermal storage steam generator, comprising: a tank container, a heat storage medium filled in the tank container, and a plurality of superconducting heat conductors arranged in the tank container and extending from the side wall of the tank container, wherein a portion of the plurality of heat conductors is placed in the tank container, and the other portions are connected to a steam generator, a cavity is arranged inside the steam generator, the heat conductor is used to transfer heat in the tank container to the steam generator, a water inlet connected to a water inlet pipe is arranged on the steam generating cavity, a steam outlet is arranged on the steam generating heat conductor, the heat conductor transfers heat to the steam generating cavity, and the steam generating cavity evaporates water entering the inner cavity into water vapor.

[0017] The advantages and positive effects of the present invention are:

[0018] 1. The present invention introduces the heat of the molten salt in the tank container into the steam generating chamber through a superconducting heat conductor, and generates steam in the steam generating chamber. This method does not need to be performed in the tank container, so it is safer and the amount of steam generated is controllable.

[0019] 2. The heat conductor of the present invention adopts a high-temperature superconducting column or a heat exchanger tube for heat transfer, wherein the high-temperature superconducting column can quickly transfer the temperature inside the tank container to the steam generation chamber, and the heat exchanger tube filled with superconducting liquid can also replace the high-temperature superconducting column to complete the temperature transfer, thereby providing a new form of safer and more reliable steam generator.

[0020] 3. The present invention can effectively control the contact area between the steam generator and the heat conductor in the steam generating chamber, thereby controlling the danger within a controllable range, and the amount of steam generated can also be controlled by the amount of water sprayed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of this embodiment 1.

[0022] Figure 2 It is a schematic diagram of the overall structure of this embodiment 2.

[0023] Reference numerals: tank container 1 , heat storage medium 2 , superconducting heat conductor 3 , steam generating chamber 4 , water source pipe 5 , steam pipeline 6 , heater 7 , steam generating body 8 , thermal insulation layer 9 . DETAILED DESCRIPTION

[0024] Example 1

[0025] See also Figure 1 This embodiment provides a superconductor extension type valley electricity thermal storage steam generator, comprising: a tank container 1, a heat storage medium 2 filled in the tank container 1, a plurality of superconducting heat conductors 3 arranged in the tank container 1 and extending from the side wall of the tank container 1, and a steam generation chamber 4, a part of the superconducting heat conductor 3 is placed in the tank container 1, and the other part is placed in the steam generation chamber 4, the superconducting heat conductor 3 is used to transfer the heat in the tank container 1 to the steam generation chamber 4, and a spray device connected to a water source pipe 5 is provided in the steam generation chamber 4, and the spray device sprays water to the outer surface of the superconducting heat conductor 3 located in the steam generation chamber 4, and the superconducting heat conductor 3 heats the water into steam. The steam generation chamber 4 is an open steam generation chamber, and the open opening of the open steam generation chamber is connected to the steam pipe 5, and the steam generated in the steam generation chamber 4 is transmitted to the outside through the steam pipe 5.

[0026] The heat storage medium 2 in this embodiment is molten salt.

[0027] The portion of the superconducting heat conductor 3 in this embodiment located in the steam generating chamber 4 is connected with a heat exchange unit for increasing the contact area with water. The heat exchange unit is circumferential and is mounted on the portion of the superconducting heat conductor 3 located in the steam generating chamber 4. The space between the inner wall of the heat exchange unit and the outer wall of the superconducting heat conductor 3 is hollow. The superconducting heat conductor 3 and the heat exchange unit are made of the same material and are integrally formed.

[0028] Two-thirds of the superconducting heat conductor 3 in this embodiment is placed inside the tank container 1, and one-third of the superconducting heat conductor 3 is placed inside the steam generating chamber 4. The superconducting heat conductor 3 is a heat exchanger tube filled with a superconducting medium, and the heat exchanger tube is used to conduct the heat inside the tank container 1 to the steam generating chamber 4. The heat exchanger tube is divided into a heat exchange section placed inside the tank container 1, and a steam generating section placed inside the steam generating chamber 4. The shape of the steam generating section is spherical or cylindrical, wherein the spherical and cylindrical surfaces are in contact with water to generate steam.

[0029] In this embodiment, a heater 7 for heating molten salt is installed on the tank container 1 . The heater 7 heats the molten salt during the off-peak period. An insulation layer 9 is provided on the outer wall of the tank container 1 .

[0030] Working principle: During the off-peak period, the heater 7 is used to heat the tank container 1. The electricity price of heating the heat storage medium 2 (molten salt) to about 600 degrees during this period is not much different from the price of coal. The molten salt is used to store heat for use in other periods when steam is needed. Among them, the superconducting heat conductor 3 is partially inserted into the molten salt of the tank container 1. The part of the superconducting heat conductor 3 placed in the steam generation chamber 4 receives heat and transfers it to the integrally formed heat exchange unit. Since the heat exchange unit is a sphere, the water of the spraying device is sprayed onto the outer surface of the heat exchange unit, and the water is heated into water vapor. The water vapor is transmitted to the equipment that needs water vapor through the pipeline.

[0031] Example 2

[0032] The present embodiment provides a superconductor extended valley electricity thermal storage steam generator, comprising: a tank container 1, a heat storage medium 2 filled in the tank container 1, and a plurality of superconducting heat conductors 3 arranged in the tank container 1 and extending from the side wall of the tank container 2, a part of the plurality of superconducting heat conductors 3 is placed in the tank container 1, and the other parts are connected to the steam generator 8, a cavity is arranged inside the steam generator 8, the superconducting heat conductor 3 is used to transfer the heat in the tank container 1 to the steam generator 8, a water inlet connected to the water inlet pipe is arranged on the steam generator cavity 8, a steam outlet is arranged on the steam generator heat conductor 8, the superconducting heat conductor 3 transfers heat to the steam generator cavity 8, and the steam generator cavity 8 evaporates the water entering the inner cavity into water vapor. The material of the steam generator cavity 8 is the same as that of the superconducting heat conductor 3 and is integrally formed, a heater 7 is installed on the tank container 1, and a thermal insulation layer 9 is arranged on the outside of the tank container 1.

[0033] Working principle: Since a part of the superconducting heat conductor 3 is inserted into the molten salt of the tank container 1, the part of the superconducting heat conductor 3 placed in the steam generating chamber 4 receives heat and transfers it to the integrally formed steam generator 8. Since the steam generator 8 has a cavity, the water from the spraying device is sprayed onto the inner wall of the steam generator 8, and the steam generator 8 heats the water into water vapor, which is then transmitted to the equipment requiring water vapor through a pipeline.

[0034] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A superconductor extended valley electricity thermal storage steam generator, characterized in that: include: A tank container, a heat storage medium filled in the tank container, a plurality of superconducting heat conductors arranged in the tank container and extending from the side wall of the tank container, and a steam generating chamber, wherein a part of the heat conductor is placed in the tank container and another part is placed in the steam generating chamber, the heat conductor is used to transfer the heat in the tank container to the steam generating chamber, a spray device connected to a water source pipe is provided in the steam generating chamber, the spray device sprays water to the outer surface of the heat conductor located in the steam generating chamber, and the heat conductor heats the water into steam.

2. A superconductor extended valley electricity thermal storage steam generator according to claim 1, characterized in that: The steam generating chamber is an open steam generating chamber, the opening of which is connected to a steam pipe, and the steam generated in the steam generating chamber is transmitted to the outside through the steam pipe.

3. The superconductor extended valley electricity thermal storage steam generator according to claim 1, characterized in that: The portion of the heat conductor located in the steam generation chamber is connected with a heat exchange unit for increasing the contact area with water.

4. The superconductor extended valley electricity thermal storage steam generator according to claim 3, characterized in that: The heat exchange unit is spherical or cylindrical and is sleeved on the portion of the heat conductor located in the steam generation chamber.

5. The superconductor extended valley electricity thermal storage steam generator according to claim 3, characterized in that: The space between the inner wall of the heat exchange unit and the outer wall of the heat conductor is hollow, or the space between the inner wall of the heat exchange unit and the outer wall of the heat conductor is filled with a heat conducting medium.

6. The superconductor extended valley electricity thermal storage steam generator according to claim 1, characterized in that: The heat conductor is a high-temperature superconducting column, two-thirds of which are placed inside the tank container, and one-third of which are placed inside the steam generating chamber. The heat conductor is a heat exchanger tube filled with a superconducting medium, and the heat exchanger tube is used to conduct the heat inside the tank container into the steam generating chamber.

7. A superconductor extended valley electricity thermal storage steam generator according to claim 6, characterized in that: The heat exchanger tube is divided into a heat exchange section placed inside the tank container and a steam generating section placed inside the steam generating chamber.

8. The superconductor extended valley electricity thermal storage steam generator according to claim 7, characterized in that: The shape of the steam generating section is spherical or cylindrical, wherein the spherical and cylindrical surfaces are in contact with water to generate steam.

9. The superconductor extended valley electricity thermal storage steam generator according to claim 1, characterized in that: A heater for heating molten salt is installed on the tank container, and the heater heats the molten salt during the off-peak period. The outer wall of the tank container is provided with a heat-insulating layer.

10. A superconductor extended valley electricity thermal storage steam generator, characterized in that: include: A tank container, a heat storage medium filled in the tank container, and multiple superconducting heat conductors arranged in the tank container and extending from the side wall of the tank container, wherein a part of the multiple heat conductors is placed in the tank container, and the other parts are connected to a steam generator, a cavity is arranged inside the steam generator, and the heat conductor is used to transfer the heat in the tank container to the steam generator, a water inlet connected to a water inlet pipe is arranged on the steam generating cavity, a steam outlet is arranged on the steam generating heat conductor, the heat conductor transfers heat to the steam generating cavity, and the steam generating cavity evaporates the water entering the inner cavity into water vapor.

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