CN218033315U

CN218033315U - Fused salt heat storage heating device

Info

Publication number: CN218033315U
Application number: CN202222215398.3U
Authority: CN
Inventors: 冷光辉; 常春; 皮甜甜
Original assignee: Guohui Wuhan Smart Energy Co ltd
Current assignee: Guohui Wuhan Smart Energy Co ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2022-12-13
Anticipated expiration: 2032-08-22

Abstract

The utility model relates to a fused salt heat storage heating device, which comprises a heat storage part, a steam generation part and a heat conduction part, wherein the heat storage part comprises a first shell and a heater, a heat storage cavity capable of containing fused salt is formed inside the first shell, and a heating part of the heater is arranged in the heat storage cavity and used for heating the fused salt; the steam generating part comprises a second shell, a water inlet pipe and a steam pipe, wherein a steam generating cavity is formed in the second shell, and the water inlet pipe and the steam pipe are respectively communicated with the steam generating cavity; the heat conducting part comprises a circulating pipeline and a driver, the circulating pipeline at least partially penetrates through the heat storage cavity and the steam generation cavity, and the driver is arranged in the circulating pipeline and is used for driving the heat conducting medium in the circulating pipeline to circularly flow. Compared with the prior art, the utility model provides a fused salt heat-retaining heating device adopts the fused salt heat-retaining, and the pollution that produces when production, scrapping is far less than the battery energy storage, and is more friendly to the environment.

Description

Fused salt heat storage heating device

Technical Field

The utility model relates to an energy storage equipment technical field especially relates to a fused salt heat-retaining heating device.

Background

Under the global double-carbon target, all industries in the world take carbon neutralization and carbon peak reaching as development directions. However, the traditional coal-fired power generation can discharge a large amount of carbon dioxide, which causes serious greenhouse effect. Clean energy such as nuclear power, wind power, photovoltaic power generation and the like does not generate carbon dioxide, and can replace coal-fired power generation.

However, the wind power and photovoltaic power generation have the problem of unstable power generation, the wind power is limited by wind, no wind, strong wind and weak wind, and the power generation completely depends on natural wind conditions; photovoltaic power generation is subject to interference at night and in cloudy, rainy, and snowy weather. Resulting in the rejection of the urban power grid from admitting wind power and photovoltaic power generation.

Therefore, a stable power supply must be realized depending on the power storage mode. However, the use of batteries to store electric energy increases the cost of the batteries and the pollution of the batteries during production and scrapping is very serious, which impairs the environmental protection of clean energy.

SUMMERY OF THE UTILITY MODEL

In view of this, it is necessary to provide a molten salt heat storage heating device to solve the technical problem of serious pollution caused by energy storage using batteries in the prior art.

The utility model provides a fused salt heat-retaining heating device, this fused salt heat-retaining heating device includes: the heat storage part comprises a first shell and a heater, a heat storage cavity capable of containing molten salt is formed in the first shell, and a heating part of the heater is arranged in the heat storage cavity and used for heating the molten salt; the steam generating part comprises a second shell, a water inlet pipe and a steam pipe, a steam generating cavity is formed in the second shell, and the water inlet pipe and the steam pipe are respectively communicated with the steam generating cavity; the heat conducting part comprises a circulating pipeline and a driver, the circulating pipeline at least partially penetrates through the heat storage cavity and the steam generation cavity, and the driver is arranged in the circulating pipeline and is used for driving the heat conducting medium in the circulating pipeline to circularly flow.

Furthermore, the heat-insulating layer is further included, and the heat-insulating layer wraps the first shell and the second shell.

Further, the driver is arranged outside the heat storage cavity and the steam generation cavity.

Further, the heat-conducting medium is air, and the driver is a circulating fan.

Further, the heat conducting portion further comprises a plurality of fins, and the portions, located in the heat storage cavity and the steam generation cavity, of the circulating pipelines are connected with the fins.

Furthermore, the heat storage part also comprises a molten salt input pipe and a molten salt output pipe which are communicated with the heat storage cavity.

Furthermore, the fused salt input pipe and the fused salt output pipe are both provided with valves.

Furthermore, the steam generating part also comprises a water outlet pipe communicated with the steam generating cavity.

Furthermore, the water inlet pipe, the water outlet pipe and the steam pipe are provided with valves.

Further, the heater is an electric heater.

Compared with the prior art, the fused salt heat storage and heating device provided by the utility model converts surplus energy into heat energy through the heater and stores the heat energy in the fused salt, when the fused salt heat storage and heating device is needed to be used, water is heated into steam through adding water into the steam generating cavity, and the steam is output through the steam pipe, so that the fused salt heat storage and heating device can be used for power generation, heat supply or industrial use; the device adopts fused salt for heat storage, the pollution generated during production and scrapping is far less than the energy storage of the battery, and the device is more environment-friendly.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, and to implement the technical means according to the content of the description, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic structural diagram of an embodiment of the molten salt heat storage and heating apparatus provided by the present invention.

Detailed Description

The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of this application, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit its scope.

Referring to fig. 1, the present invention provides a molten salt heat storage and heating device. The molten salt heat storage heating device can store electric energy when the generated energy is excessive (such as daytime) in heating, and is used for heating when the electric energy is in shortage (such as night).

It should be noted that the utility model discloses a fused salt heat-retaining heating device can be used to but not limited to the heating, can also be applied to new-type electricity generation such as photovoltaic, wind-force, stores unnecessary electric energy in the fused salt, uses when supplying the unable electricity generation of power generation facility. The peak clipping and valley leveling make the power supply more stable. The utility model discloses in, only explain as the example with fused salt heat-retaining heating device is applied to heating equipment, the principle during principle and the heating when other usage is the same in essence, differs here and explains repeatedly.

The molten salt heat storage and heating device comprises a heat storage part 1, a steam generation part 2 and a heat conduction part 3.

The heat storage part 1 comprises a first shell 11 and a heater 12, a heat storage cavity 111 is formed inside the first shell 11, the heat storage cavity 111 is used for containing molten salt, and the molten salt can be changed into liquid from solid after being heated and can be used for storing heat; but also can change liquid into solid by itself to emit heat. The heating portion of the heater 12 is disposed within the heat storage chamber 111 for heating the molten salt.

The steam generating part 2 includes a second case 21, a water inlet pipe 22, and a steam pipe 23, and a steam generating chamber 211 is formed inside the second case 21 for generating steam. The water inlet pipe 22 and the steam pipe 23 are respectively communicated with the steam generating cavity, the water inlet pipe 22 is used for inputting water into the steam generating cavity 211, and the generated steam is led out through the steam pipe 23 and can be used for power generation, heating or industrial use.

The heat conducting portion 3 comprises a circulation duct 31 and a driver 32, the circulation duct 31 at least partially penetrates through the heat storage cavity 111 and the steam generation cavity 211, and the driver 32 is arranged in the circulation duct 31 for driving the heat conducting medium in the circulation duct 31 to circularly flow. The heat in the heat storage chamber 111 is transferred to the steam generation chamber 211, and the water is heated to generate steam for heating or power generation.

The utility model provides a heat pipe formula fused salt phase transition heat-retaining supplies steam plant changes surplus energy into heat energy storage through heater 12 among the fused salt, when needs use, through adding water to steam generation chamber 211, the hydrothermal becomes steam to export through steam pipe 23. The device adopts fused salt for heat storage, the pollution generated during production and scrapping is far less than the energy storage of the battery, and the device is more environment-friendly.

In some embodiments, the heat pipe type molten salt phase change heat storage and steam supply device further comprises an insulating layer 4, and the insulating layer 4 wraps the first shell 11 and the second shell 21 so as to reduce heat exchange between the first shell 11 and the second shell 21 and the outside, reduce heat loss and improve the heat efficiency of the whole device. The heat-insulating layer can be made of foam, heat-insulating cotton, heat-insulating bricks and other materials.

Since the present device is generally applied to power generation equipment such as photovoltaic power generation, wind power generation, etc. for storing unstable electric energy generated, in these embodiments, the heater 12 adopts an electric heater, and converts the electric energy into heat energy by using the electric heating principle and stores the heat energy in the molten salt.

In some embodiments, the heat storage section 1 further comprises a molten salt input pipe 13 and a molten salt output pipe 14 communicating with the heat storage cavity 111. The molten salt input pipe 13 is used for inputting molten salt into the heat storage cavity 111, and the molten salt output pipe 14 is used for discharging the molten salt in the heat storage cavity 111. The molten salt in the heat storage cavity 111 can be replaced through the molten salt input pipe 13 and the molten salt output pipe 14. Preferably, valves are arranged on the molten salt input pipe 13 and the molten salt output pipe 14 for controlling the input and output of the molten salt.

In some embodiments, the steam generating part 2 further comprises a water outlet pipe 24 communicating with the steam generating chamber 211 and operable to discharge unused water in the steam generating chamber 211. Preferably, the inlet pipe 22, the steam pipe 23 and the outlet pipe 24 are provided with valves for controlling inflow and outflow of water and output of steam, respectively.

It is obvious that the driver 32 controls whether the energy transfer between the heat storage chamber 111 and the steam generating chamber 211 is performed or not, and therefore the driver 32 is preferably disposed outside the heat storage chamber 111 and the steam generating chamber 211 for the convenience of the human operation and the overhaul and maintenance.

In some embodiments, the heat transfer medium is air and the driver 32 is a circulating fan. In other embodiments, the heat transfer medium may be oil, and the driver 32 is a circulation pump. The heat transfer medium is heated to a temperature of 100 ℃ or higher in the heat storage chamber 111, and then is driven by the driver 32 to flow into the steam generation chamber 211, so that water in the steam generation chamber 211 is heated to generate steam.

In a preferred embodiment, the heat conducting portion 3 further comprises a plurality of fins 33, and the fins 33 are connected to the portions of the circulating pipe 31 located in the heat storage cavity 111 and the steam generating cavity 211. The fins 33 are also made of heat conducting materials, extend in the heat storage cavity 111 and the steam generation cavity 211, increase the contact area with molten salt and water, and further improve the heat conducting efficiency.

When the power is sufficient, for example, the sunlight is sufficient in daytime, the heater 12 converts the surplus electric energy into heat energy to melt the molten salt in the heat storage cavity 111, and the energy is stored by utilizing the phase change of the molten salt. When the solar panel cannot generate electricity and has a large heating demand at night, the molten salt is solidified and phase change occurs again to release heat. When the driver 32 is started, the heat-conducting medium circulates in the circulating pipeline 31, absorbs the heat of the molten salt and transfers the heat to the water in the steam generating cavity 211, so that the water is heated and evaporated to generate steam for heating or generating electricity.

The utility model provides a fused salt heat-storage heating device converts surplus energy into heat energy through the heater and stores in the fused salt, when needing to use, through adding water to the steam generation cavity, the water is heated and becomes steam, and through the output of steam pipe, can be used to generate electricity, heat supply or industrial use; the device adopts fused salt for heat storage, the pollution generated during production and scrapping is far less than the energy storage of the battery, and the device is more environment-friendly.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.

Claims

1. A fused salt heat-storage heating device is characterized by comprising: the heat storage part comprises a first shell and a heater, a heat storage cavity capable of containing molten salt is formed in the first shell, and a heating part of the heater is arranged in the heat storage cavity and used for heating the molten salt; the steam generating part comprises a second shell, a water inlet pipe and a steam pipe, wherein a steam generating cavity is formed in the second shell, and the water inlet pipe and the steam pipe are respectively communicated with the steam generating cavity; the heat conducting part comprises a circulating pipeline and a driver, the circulating pipeline at least partially penetrates through the heat storage cavity and the steam generating cavity, and the driver is arranged on the circulating pipeline and used for driving the heat conducting medium in the circulating pipeline to circularly flow.

2. The molten salt heat-storage heating device according to claim 1, further comprising an insulating layer that wraps the first housing and the second housing.

3. The molten salt heat-storage heating apparatus according to claim 1, wherein a driver is arranged outside the heat storage cavity and the steam generation cavity.

4. The molten salt heat-storage heating device according to claim 3, wherein the heat-conducting medium is air, and the driver is a circulating fan.

5. The molten salt heat-storage heating apparatus according to claim 4, wherein the heat conducting portion further includes a plurality of fins, and the fins are connected to portions of the circulation pipe located in the heat storage cavity and the steam generation cavity.

6. The molten salt heat-storage heating device according to claim 1, wherein the heat storage portion further comprises a molten salt input pipe and a molten salt output pipe which are communicated with the heat storage cavity.

7. The molten salt heat-storage heating device according to claim 6, wherein the molten salt input pipe and the molten salt output pipe are provided with valves.

8. The molten salt heat-storage heating device according to claim 1, wherein the steam generation part further comprises a water outlet pipe communicated with the steam generation cavity.

9. The molten salt heat-storage heating device according to claim 8, wherein the water inlet pipe, the water outlet pipe, and the steam pipe are provided with valves.

10. The molten salt heat-storage heating device according to claim 7, wherein the heater is an electric heater.