CN217712695U - Industry supplies vapour system based on fused salt energy storage - Google Patents

Abstract

The present disclosure provides an industrial steam supply system based on molten salt energy storage, including: a molten salt energy storage device; the water outlet end of the first turbine power generation system is connected with the water inlet end of the fused salt energy storage device, and the power supply end of the first turbine power generation system is respectively connected with the power utilization end of the fused salt energy storage device and the power utilization end of the power grid; the steam inlet end of the second steam turbine power generation system is connected with the steam outlet end of the fused salt energy storage device, and the power supply end of the second steam turbine power generation system is connected with the power utilization end of the power utilization grid; and the steam inlet end of the steam supply pipeline is respectively connected with the steam outlet end of the second turbine power generation system and the steam outlet end of the molten salt energy storage device. In the industrial steam supply system based on the fused salt energy storage, industrial steam supply can be performed while power generation and peak regulation are realized, the power generation cost is effectively reduced, and the utilization rate of the first turbine power generation system and the second turbine power generation system is improved.

Description

An industrial steam supply system based on molten salt energy storage

technical field

The disclosure relates to the technical field of industrial steam supply, in particular to an industrial steam supply system based on molten salt energy storage.

Background technique

During the operation of the thermal power unit, the boiler generates superheated steam, and the superheated steam enters the steam turbine to expand and do work, so that the blades rotate to drive the generator to generate electricity, thereby realizing power supply to the power grid.

Generally, thermal power units need a certain peak-shaving capability to reduce power generation costs and improve economic benefits. At the same time, part of the steam generated by thermal power units needs to be used for industrial steam supply. Steam supply system.

Contents of the invention

The present disclosure aims to solve one of the technical problems in the related art at least to a certain extent.

Therefore, the purpose of the present disclosure is to provide an industrial steam supply system based on molten salt energy storage.

In order to achieve the above purpose, the present disclosure provides an industrial steam supply system based on molten salt energy storage, including: a molten salt energy storage device; a first steam turbine power generation system, the water outlet of the first steam turbine power generation system and the molten salt The water inlet end of the energy storage device is connected, and the power supply end of the first steam turbine power generation system is respectively connected with the power consumption end of the molten salt energy storage device and the power consumption end of the grid; the second steam turbine power generation system, the The steam inlet end of the second steam turbine power generation system is connected to the steam outlet end of the molten salt energy storage device, and the power supply end of the second steam turbine power generation system is connected to the power consumption end of the power grid; the steam supply pipeline , the steam inlet end of the steam supply pipeline is respectively connected with the steam outlet end of the second steam turbine power generation system and the steam outlet end of the molten salt energy storage device.

Optionally, the industrial steam supply system further includes: a first valve body, the first valve body is arranged at the steam inlet end of the second steam turbine power generation system and connected with the steam outlet end of the molten salt energy storage device between.

Optionally, the industrial steam supply system further includes: a second valve body, the second valve body is arranged between the steam inlet end of the steam supply pipeline and the steam outlet end of the molten salt energy storage device. between.

Optionally, the molten salt energy storage device includes: an electric heater, the power consumption end of the electric heater is connected to the power supply end of the first steam turbine power generation system; a high temperature tank, the liquid inlet of the high temperature tank The end is connected with the liquid outlet end of the electric heater; the heat exchanger, the liquid inlet end of the first passage of the heat exchanger is connected with the liquid outlet end of the high temperature tank, and the inlet end of the second passage of the heat exchanger The water end is connected to the water outlet of the first steam turbine power generation system, and the steam outlet of the second passage of the heat exchanger is respectively connected to the steam inlet end of the second steam turbine power generation system and the steam inlet of the steam supply pipeline. The low temperature tank, the liquid inlet end of the low temperature tank is connected with the liquid outlet end of the first passage of the heat exchanger, and the liquid outlet end of the low temperature tank is connected with the liquid inlet end of the electric heater.

Optionally, the molten salt energy storage device further includes: a first pump body, the first pump body is arranged between the liquid inlet end of the first passage of the heat exchanger and the liquid outlet end of the high-temperature tank Between; the second pump body, the second pump body is arranged between the liquid outlet end of the cryogenic tank and the liquid inlet end of the electric heater; the third pump body, the third pump body is arranged at The water inlet end of the second passage of the heat exchanger is connected to the water outlet end of the first steam turbine power generation system.

Optionally, the first steam turbine power generation system includes: a boiler; a high-pressure cylinder, the steam inlet end of the high-pressure cylinder is connected to the first steam outlet end of the boiler, and the steam outlet end of the high-pressure cylinder is connected to the first steam outlet end of the boiler the steam inlet end of the medium pressure cylinder, the steam inlet end of the medium pressure cylinder is connected with the second steam outlet end of the boiler; the low pressure cylinder, the steam inlet end of the low pressure cylinder is connected with the outlet of the medium pressure cylinder The steam end is connected; the condenser, the steam inlet end of the condenser is connected with the steam outlet end of the low-pressure cylinder, and the water outlet end of the condenser is respectively connected with the water inlet end of the boiler and the heat exchange The water inlet end of the second path of the generator is connected; the generator, the power input end of the generator is connected with the power output end of the low pressure cylinder, and the power supply end of the generator is connected with the power consumption end of the electric heater respectively. and the power consumption end of the power grid.

Optionally, the first steam turbine power generation system further includes: a deaerator, the steam inlet end of the deaerator is respectively connected with the steam outlet end of the high-pressure cylinder and the steam outlet end of the medium-pressure cylinder, the The water inlet end of the deaerator is connected with the water outlet end of the condenser, and the water outlet end of the deaerator is respectively connected with the water inlet end of the boiler and the water inlet end of the second passage of the heat exchanger .

Optionally, the first steam turbine power generation system further includes: a high-pressure heater, the steam inlet end of the high-pressure heater is connected to the steam outlet end of the high-pressure cylinder and the steam outlet end of the medium-pressure cylinder respectively, so that The steam outlet of the high-pressure heater is connected to the steam inlet of the deaerator, the water inlet of the high-pressure heater is connected to the water outlet of the deaerator, and the water outlet of the high-pressure heater is connected to the deaerator. The water inlet end of the boiler is connected; the low pressure heater, the steam inlet end of the low pressure heater is connected with the steam outlet end of the low pressure cylinder, and the steam outlet end of the low pressure heater is connected with the water outlet end of the condenser The water inlet end of the low-pressure heater is connected with the water outlet end of the condenser, and the water outlet end of the low-pressure heater is connected with the water inlet end of the deaerator.

Optionally, the first steam turbine power generation system further includes: a fourth pump body, the fourth pump body is arranged between the water inlet end of the low pressure heater and the water outlet end of the condenser; Five pump bodies, the fifth pump body is arranged between the water inlet end of the high pressure heater and the water outlet end of the deaerator.

Optionally, the second steam turbine power generation system includes: a back pressure steam turbine, the steam inlet end of the back pressure steam turbine is connected to the steam outlet end of the second path of the heat exchanger, and the second steam turbine power generation system The power supply end of the power grid is connected to the power consumption end of the power grid.

The technical solution provided by the present disclosure may include the following beneficial effects:

Through the cooperation of the first steam turbine power generation system, the second steam turbine power generation system and the molten salt energy storage device, industrial steam supply can be carried out while power generation peak regulation is realized, which effectively reduces power generation costs and improves the efficiency of the first steam turbine power generation system and the second steam turbine power generation system. Utilization of steam turbine power generation system.

Additional aspects and advantages of the disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the disclosure.

Description of drawings

The above and/or additional aspects and advantages of the present disclosure will become apparent and understandable from the following description of the embodiments in conjunction with the accompanying drawings, wherein:

Fig. 1 is a schematic structural diagram of an industrial steam supply system based on molten salt energy storage proposed by an embodiment of the present disclosure;

As shown in the figure: 1. Molten salt energy storage device, 2. First steam turbine power generation system, 3. Second steam turbine power generation system, 4. Steam supply pipeline, 5. First valve body, 6. Second valve body, 7. Electric heater, 8. High temperature tank, 9. Heat exchanger, 10. Low temperature tank, 11. First pump body, 12. Second pump body, 13. Third pump body, 14. Boiler, 15. High pressure cylinder, 16, medium pressure cylinder, 17, low pressure cylinder, 18, condenser, 19, generator, 20, deaerator, 21, high pressure heater, 22, low pressure heater, 23, fourth pump body, 24 , the fifth pump body, 25, back pressure steam turbine.

Detailed ways

Embodiments of the present disclosure are described in detail below, examples of which are illustrated in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present disclosure and should not be construed as limiting the present disclosure. On the contrary, the embodiments of the present disclosure include all changes, modifications and equivalents coming within the spirit and scope of the appended claims.

As shown in Figure 1, the embodiment of the present disclosure proposes an industrial steam supply system based on molten salt energy storage, including a molten salt energy storage device 1, a first steam turbine power generation system 2, a second steam turbine power generation system 3 and a steam supply pipeline 4. The water outlet end of the first steam turbine power generation system 2 is connected to the water inlet end of the molten salt energy storage device 1, and the power supply end of the first steam turbine power generation system is respectively connected to the power consumption end of the molten salt energy storage device 1 and the power grid. The power consumption end is connected, the steam inlet end of the second steam turbine power generation system 3 is connected to the steam outlet end of the molten salt energy storage device 1, the power supply end of the second steam turbine power generation system 3 is connected to the power consumption end of the grid, and the steam supply pipe The steam inlet end of the road 4 is respectively connected with the steam outlet end of the second steam turbine power generation system 3 and the steam outlet end of the molten salt energy storage device 1 .

It can be understood that, when the power demand of the power grid is small, the first steam turbine power generation system 2 performs peak regulation and supplies power to the molten salt energy storage device 1, so as to convert electric energy into thermal energy and store it in the molten salt;

When the power demand of the power grid is large, the first steam turbine power generation system 2 is fully powered by the power grid, and the molten salt energy storage device 1 releases the heat energy in the molten salt into the effluent water of the first steam turbine power generation system 2, Convert the output water of the first steam turbine power generation system 2 into steam and supply steam to the second steam turbine power generation system 3, so that the second steam turbine power generation system 3 and the first steam turbine power generation system 2 simultaneously supply power to the power grid to meet the power consumption At the same time, part of the steam converted from the water output of the first steam turbine power generation system 2 and the steam after work in the second steam turbine power generation system 3 are transported to the industrial steam end through the steam supply pipeline, so as to meet the needs of the power grid. Realize industrial steam supply while meeting electricity demand;

Thus, through the cooperation of the first steam turbine power generation system 2, the second steam turbine power generation system 3 and the molten salt energy storage device 1, industrial steam supply can be carried out while power generation peak regulation is realized, which effectively reduces power generation costs and improves the first The utilization rate of the steam turbine power generation system 2 and the second steam turbine power generation system 3 .

As shown in Figure 1, in some embodiments, the industrial steam supply system further includes a first valve body 5, and the first valve body 5 is arranged between the steam inlet end of the second steam turbine power generation system 3 and the outlet of the molten salt energy storage device 1. between steam terminals.

It can be understood that when the power generation of the first steam turbine power generation system 2 cannot meet the electricity demand of the power grid, the first valve body 5 is opened, and the molten salt energy storage device 1 converts the output water of the first steam turbine power generation system 2 into After steaming, part of the steam enters the second steam turbine power generation system 3 to generate power, and after the power is generated, it is transported through the steam supply pipeline 4 for industrial steam supply, and the rest of the steam is directly transported through the steam supply pipeline 4 for industrial steam supply. ;

When the power generation of the first steam turbine power generation system 2 can meet the electricity demand of the power grid, the first valve body 5 is closed, and the molten salt energy storage device 1 converts the outlet water of the first steam turbine power generation system 2 into steam, and all the steam is directly Carry out industrial steam supply through the transportation of steam supply pipeline 4;

When the power demand of the grid is greater than the power generation of the first steam turbine power generation system 2 and less than the joint power generation of the first steam turbine power generation system 2 and the second steam turbine power generation system 3, the opening of the first valve body 5 can be adjusted to The proportion of steam entering the second steam turbine power generation system 3 is controlled, so that the overall power generation and steam supply can reach optimal values.

As shown in Figure 1, in some embodiments, the industrial steam supply system further includes a second valve body 6, and the second valve body 6 is arranged between the steam inlet end of the steam supply pipeline 4 and the steam outlet of the molten salt energy storage device 1. between the ends.

It can be understood that the switch state of the second valve body 6 is opposite to the switch state of the first valve body 5, and the opening degree of the second valve body 6 is negatively correlated with the opening degree of the first valve body 5, that is, the first valve body When the opening of the body 5 increases, the opening of the second valve body 6 decreases, and when the opening of the first valve body 5 decreases, the opening of the second valve body 6 increases. Thus, through the cooperation of the second valve body 6 and the first valve body 5, the overall stability is effectively improved.

As shown in Figure 1, in some embodiments, a molten salt energy storage device 1 includes an electric heater 7, a high-temperature tank 8, a heat exchanger 9 and a low-temperature tank 10, and the power consumption end of the electric heater 7 is connected to the first steam turbine The power supply end of the power generation system is connected, the liquid inlet end of the high temperature tank 8 is connected with the liquid outlet end of the electric heater 7, the liquid inlet end of the first passage of the heat exchanger 9 is connected with the liquid outlet end of the high temperature tank 8, and the heat exchanger 9 The water inlet end of the second passage is connected with the water outlet end of the first steam turbine power generation system 2, and the steam outlet end of the second passage of the heat exchanger 9 is respectively connected with the steam inlet end of the second steam turbine power generation system 3 and the inlet of the steam supply pipeline 4. The steam end is connected, the liquid inlet end of the low temperature tank 10 is connected with the liquid outlet end of the first passage of the heat exchanger 9 , and the liquid outlet end of the low temperature tank 10 is connected with the liquid inlet end of the electric heater 7 .

It can be understood that the electric heater 7, the high-temperature tank 8, the first passage of the heat exchanger 9 and the low-temperature tank 10 form a molten salt circulation passage, thus, after the first steam turbine power generation system supplies power to the electric heater 7, the electric The heater 7 heats the molten salt so that the electric energy is converted into thermal energy and stored in the molten salt, so as to realize power generation peak regulation. The molten salt passes through the first passage of the heat exchanger 9 and the effluent of the first steam turbine power generation system 2 undergoes heat exchange When the second channel of the device 9 is used, the heat in the molten salt is released into the water to heat the water into steam and realize the power generation and industrial steam supply of the second steam turbine power generation system 3 .

It should be noted that the heat exchanger 9 includes a first passage and a second passage for heat exchange, and heat exchange is performed when there is a temperature difference between the first passage and the second passage.

In some embodiments, the electric heater 7 can include a heating tank and a heating wire, one end of the heating tank is connected to the liquid inlet end of the high temperature tank 8, the other end of the heating tank is connected to the liquid outlet end of the low temperature tank 10, and the heating wire is provided It is inside the heating tank, and the power consumption end of the heating wire is connected with the power supply end of the first steam turbine power generation system. Thus, after the first steam turbine power generation system supplies power to the heating wire, the heating wire heats the molten salt in the heating tank, thereby realizing heat storage of the molten salt.

As shown in Fig. 1, in some embodiments, the molten salt energy storage device 1 further includes a first pump body 11, a second pump body 12 and a third pump body 13, and the first pump body 11 is arranged on the second pump body of the heat exchanger 9. Between the liquid inlet end of a channel and the liquid outlet end of the high temperature tank 8, the second pump body 12 is arranged between the liquid outlet end of the low temperature tank 10 and the liquid inlet end of the electric heater 7, and the third pump body 13 It is arranged between the water inlet end of the second passage of the heat exchanger 9 and the water outlet end of the first steam turbine power generation system 2 .

It can be understood that the first pump body 11 pressurizes the molten salt in the high-temperature tank 8 and transports it to the first passage of the heat exchanger 9, and the second pump body 12 pressurizes the molten salt in the low-temperature tank 10 and then heats it electrically. 7, so as to ensure the circulation of the molten salt in the circulation path, the third pump body 13 pressurizes the outlet water of the first steam turbine power generation system 2, and then transports it to the second path of the heat exchanger 9, so as to ensure the power generation of the second steam turbine The steam supply of the system 3 and the steam supply pipeline 4, thus, through the setting of the first pump body 11, the second pump body 12 and the third pump body 13, the heat storage and heat release efficiency of the molten salt is effectively improved, ensuring power generation Realization of peak shaving and industrial steam supply.

As shown in Figure 1, in some embodiments, the first steam turbine power generation system 2 includes a boiler 14, a high-pressure cylinder 15, an intermediate-pressure cylinder 16, a low-pressure cylinder 17, a condenser 18 and a generator 19, and the intake steam of the high-pressure cylinder 15 The end is connected with the first steam outlet of the boiler 14, the steam outlet of the high-pressure cylinder 15 is connected with the steam inlet of the boiler 14, the steam inlet of the medium-pressure cylinder 16 is connected with the second outlet of the boiler 14, and the low-pressure cylinder 17 The steam inlet end of the condenser is connected with the steam outlet end of the medium pressure cylinder 16, the steam inlet end of the condenser 18 is connected with the steam outlet end of the low pressure cylinder 17, and the water outlet end of the condenser 18 is respectively connected with the water inlet end of the boiler 14 and the water exchange end. The water inlet end of the second path of the heater 9 is connected, the power input end of the generator 19 is connected with the power output end of the low-pressure cylinder 17, and the power supply end of the generator 19 is connected with the power consumption end of the electric heater 7 and the power supply end of the power grid respectively. Connect to the power terminal.

It can be understood that the main steam in the boiler 14 enters the high-pressure cylinder 15 from the first steam outlet end of the boiler 14 to do work, and the steam after doing work in the high-pressure cylinder 15 enters the boiler 14 from the steam inlet end of the boiler 14 for reheating. The reheated steam enters the medium-pressure cylinder 16 from the second outlet of the boiler 14 to do work, and the steam after doing work in the medium-pressure cylinder 16 enters the low-pressure cylinder 17 to do work, and the steam after doing work in the low-pressure cylinder 17 is condensed The steam boiler 18 is condensed into water, and part of the condensed water enters the boiler 14 from the water inlet end of the boiler 14 to be heated into main steam for recycling, and the remaining condensed water enters the second passage of the heat exchanger 9 Heat absorption is carried out to ensure the steam supply to the second steam turbine power generation system 3 and the steam supply pipeline 4. At the same time, the steam works sequentially in the high-pressure cylinder 15, the medium-pressure cylinder 16 and the low-pressure cylinder 17 to drive the generator 19 to run , to realize the power supply to the electric heater 7 and the grid.

It should be noted that the boiler 14 includes a first steam outlet, a second steam outlet, a steam inlet and a water inlet. In the boiler 14, the first steam outlet is connected to the water inlet, and the second steam outlet is connected to the water inlet. The steam inlet is connected.

As shown in Figure 1, in some embodiments, the first steam turbine power generation system 2 also includes a deaerator 20, and the steam inlet end of the deaerator 20 is connected to the steam outlet end of the high-pressure cylinder 15 and the steam outlet of the medium-pressure cylinder 16 respectively. The water inlet end of the deaerator 20 is connected with the water outlet end of the condenser 18, and the water outlet end of the deaerator 20 is connected with the water inlet end of the boiler 14 and the water inlet end of the second passage of the heat exchanger 9 respectively.

It can be understood that the deaerator 20 deoxygenates the outlet water of the condenser 18 to reduce the oxygen content in the outlet water of the condenser 18, thereby reducing damage to equipment and pipelines in the system and prolonging the service life of the system.

As shown in Figure 1, in some embodiments, the first steam turbine power generation system 2 also includes a high-pressure heater 21 and a low-pressure heater 22, and the steam inlet end of the high-pressure heater 21 is connected to the steam outlet end of the high-pressure cylinder 15 and the medium-pressure heater respectively. The steam outlet of the cylinder 16 is connected, the steam outlet of the high-pressure heater 21 is connected with the steam inlet of the deaerator 20, the water inlet of the high-pressure heater 21 is connected with the water outlet of the deaerator 20, and the high-pressure heater 21 The water outlet is connected to the water inlet of the boiler 14, the steam inlet of the low-pressure heater 22 is connected to the steam outlet of the low-pressure cylinder 17, the steam outlet of the low-pressure heater 22 is connected to the water outlet of the condenser 18, and the low-pressure heater 22 is connected to the water outlet of the condenser 18. The water inlet end of 22 is connected with the water outlet end of condenser 18, and the water outlet end of low pressure heater 22 is connected with the water inlet end of deaerator 20.

It can be understood that the high-pressure heater 21 uses the steam after working in the high-pressure cylinder 15 and the medium-pressure cylinder 16 to heat the water from the deaerator 20 to the boiler 14, and the low-pressure heater 22 uses the steam after working in the low-pressure cylinder 17 to heat the condensed water. The water from the boiler 18 to the deaerator 20 is heated, thereby improving the heating efficiency of the boiler 14 and reducing the cost of power generation.

As shown in Figure 1, in some embodiments, the first steam turbine power generation system 2 also includes a fourth pump body 23 and a fifth pump body 24, and the fourth pump body 23 is arranged at the water inlet end of the low-pressure heater 22 and the condensing steam The fifth pump body 24 is arranged between the water inlet end of the high pressure heater 21 and the water outlet end of the deaerator 20 .

It can be understood that the fourth pump body 23 pressurizes the outlet water of the condenser 18 and then sends it to the deaerator 20, and the fifth pump body 24 pressurizes the outlet water of the deaerator 20 and then sends it to the boiler 14, thereby ensuring the condensation The recycling of the water outlet from the boiler 18 reduces the cost of power generation.

As shown in Figure 1, in some embodiments, the second steam turbine power generation system 3 includes a back pressure steam turbine 25, the steam inlet end of the back pressure steam turbine 25 is connected with the steam outlet end of the second passage of the heat exchanger 9, and the second The power supply end of the steam turbine power generation system 3 is connected to the power consumption end of the grid.

It can be understood that the exhaust steam of the back-pressure steam turbine 25 has high pressure and high heat content, and can be directly used after industrial steam supply to ensure high-quality steam supply of the system.

It should be noted that, in the description of the present disclosure, terms such as "first" and "second" are used for description purposes only, and should not be understood as indicating or implying relative importance. In addition, in the description of the present disclosure, unless otherwise specified, "plurality" means two or more.

Any process or method descriptions in flowcharts or otherwise described herein may be understood to represent modules, segments or portions of code comprising one or more executable instructions for implementing specific logical functions or steps of the process , and the scope of preferred embodiments of the present disclosure includes additional implementations in which functions may be performed out of the order shown or discussed, including substantially concurrently or in reverse order depending on the functions involved, which shall It is understood by those skilled in the art to which the embodiments of the present disclosure pertain.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present disclosure have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations on the present disclosure, and those skilled in the art can understand the above-mentioned embodiments within the scope of the present disclosure. The embodiments are subject to changes, modifications, substitutions and variations.

Claims (10)

1. An industrial steam supply system based on molten salt energy storage is characterized by comprising:

a molten salt energy storage device;

the water outlet end of the first turbine power generation system is connected with the water inlet end of the molten salt energy storage device, and the power supply end of the first turbine power generation system is respectively connected with the power utilization end of the molten salt energy storage device and the power utilization end of the power utilization grid;

the steam inlet end of the second steam turbine power generation system is connected with the steam outlet end of the molten salt energy storage device, and the power supply end of the second steam turbine power generation system is connected with the power utilization end of the power utilization grid;

and the steam inlet end of the steam supply pipeline is respectively connected with the steam outlet end of the second steam turbine power generation system and the steam outlet end of the molten salt energy storage device.

2. The molten salt energy storage based industrial steam supply system of claim 1, further comprising:

and the first valve body is arranged between the steam inlet end of the second turbine power generation system and the steam outlet end of the molten salt energy storage device.

3. The molten salt energy storage based industrial steam supply system of claim 2, further comprising:

and the second valve body is arranged between the steam inlet end of the steam supply pipeline and the steam outlet end of the fused salt energy storage device.

4. A molten salt energy storage based industrial steam supply system according to claim 1, 2 or 3, characterized in that the molten salt energy storage device comprises:

the power utilization end of the electric heater is connected with the power supply end of the first steam turbine power generation system;

the liquid inlet end of the high-temperature tank is connected with the liquid outlet end of the electric heater;

the liquid inlet end of the first passage of the heat exchanger is connected with the liquid outlet end of the high-temperature tank, the water inlet end of the second passage of the heat exchanger is connected with the water outlet end of the first steam turbine power generation system, and the steam outlet end of the second passage of the heat exchanger is respectively connected with the steam inlet end of the second steam turbine power generation system and the steam inlet end of the steam supply pipeline;

the liquid inlet end of the low-temperature tank is connected with the liquid outlet end of the first passage of the heat exchanger, and the liquid outlet end of the low-temperature tank is connected with the liquid inlet end of the electric heater.

5. The industrial steam supply system based on molten salt energy storage according to claim 4, wherein the molten salt energy storage device further comprises:

the first pump body is arranged between the liquid inlet end of the first passage of the heat exchanger and the liquid outlet end of the high-temperature tank;

the second pump body is arranged between the liquid outlet end of the low-temperature tank and the liquid inlet end of the electric heater;

and the third pump body is arranged between the water inlet end of the second passage of the heat exchanger and the water outlet end of the first turbine power generation system.

6. The molten salt energy storage based industrial steam supply system of claim 4, wherein the first turbine power generation system comprises:

a boiler;

the steam inlet end of the high-pressure cylinder is connected with the first steam outlet end of the boiler, and the steam outlet end of the high-pressure cylinder is connected with the steam inlet end of the boiler;

the steam inlet end of the intermediate pressure cylinder is connected with the second steam outlet end of the boiler;

the steam inlet end of the low pressure cylinder is connected with the steam outlet end of the medium pressure cylinder;

the steam inlet end of the condenser is connected with the steam outlet end of the low-pressure cylinder, and the water outlet end of the condenser is respectively connected with the water inlet end of the boiler and the water inlet end of the second passage of the heat exchanger;

and the power input end of the generator is connected with the power output end of the low-pressure cylinder, and the power supply end of the generator is respectively connected with the power utilization end of the electric heater and the power utilization end of the power utilization grid.

7. The molten salt energy storage based industrial steam supply system of claim 6, wherein the first turbine power generation system further comprises:

and the steam inlet end of the deaerator is respectively connected with the steam outlet end of the high-pressure cylinder and the steam outlet end of the medium-pressure cylinder, the water inlet end of the deaerator is connected with the water outlet end of the condenser, and the water outlet end of the deaerator is respectively connected with the water inlet end of the boiler and the water inlet end of the second passage of the heat exchanger.

8. The molten salt energy storage based industrial steam supply system of claim 7, wherein the first turbine power generation system further comprises:

the steam inlet end of the high-pressure heater is respectively connected with the steam outlet end of the high-pressure cylinder and the steam outlet end of the medium-pressure cylinder, the steam outlet end of the high-pressure heater is connected with the steam inlet end of the deaerator, the water inlet end of the high-pressure heater is connected with the water outlet end of the deaerator, and the water outlet end of the high-pressure heater is connected with the water inlet end of the boiler;

the low-pressure heater, the steam inlet end of low-pressure heater with the play steam end of low pressure jar links to each other, the play steam end of low-pressure heater with the play water end of condenser links to each other, the end of intaking of low-pressure heater with the play water end of condenser links to each other, the play water end of low-pressure heater with the end of intaking of oxygen-eliminating device links to each other.

9. The molten salt energy storage based industrial steam supply system of claim 8, wherein the first turbine power generation system further comprises:

the fourth pump body is arranged between the water inlet end of the low-pressure heater and the water outlet end of the condenser;

and the fifth pump body is arranged between the water inlet end of the high-pressure heater and the water outlet end of the deaerator.

10. An industrial steam supply system based on molten salt energy storage according to claim 4, wherein the second turbine power generation system comprises:

and the steam inlet end of the back pressure turbine is connected with the steam outlet end of the second passage of the heat exchanger, and the power supply end of the second turbine power generation system is connected with the power utilization end of the power utilization grid.

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