High-efficiency storage system based on industrial thermal energy cascade utilization

Abstract

The application discloses a kind of based on industrial thermal energy cascade utilization's high efficiency storage system, comprising: high temperature heat pump and water vapor compressor module, for generating saturated steam;Steam temperature and pressure increasing module is connected at the first outlet of high temperature heat pump and water vapor compressor module, for lifting the temperature and pressure of steam;Second, third temperature and pressure increasing module, with steam temperature and pressure increasing module is connected in series, for the steam of unqualified parameter is carried out multistage processing.The application controls the operation mode of system by controlling valve group control steam flow direction, realize the cascade utilization of thermal energy, to realize the efficient storage and generation of steam heat, break through the bottleneck of low energy efficiency of high temperature and high pressure steam production, while realizing the full use of steam thermal energy and the efficient realization of steam energy storage, and the use of energy storage technology effectively avoids the use of peak power and sharp peak power in power application, reduces the overall operation cost of system, improves economic benefit.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage, in particular to a high-efficiency storage system based on industrial thermal energy cascade utilization. BACKGROUND

[0002] The heat pump technology can utilize clean electricity and low-grade heat to provide high-temperature heating, meet the heat demand of industrial processes, and is recognized as an effective means to recover low-grade energy and improve the grade of heat. Through the heat pump technology, the heat utilization of low-grade heat sources is realized, and then the water vapor compressor is used to generate micro-pressure steam, and through compression, the temperature and pressure of the steam are improved to meet the application requirements of a larger range of users and realize the supply of 160 DEG C steam. At the same time, the current industrial application of high-temperature energy storage and heat storage can realize heat storage by utilizing the temperature difference of materials during the heating or cooling process, and by configuring flexible and adjustable heat storage modules, clean heating can be realized by efficiently utilizing cheap valley electricity and renewable energy such as wind power and photovoltaic abandoned electricity.

[0003] In the process of industrial application, the power supply of the power grid often has the difference of peak and valley electricity, and the price difference between peak electricity and valley electricity is large, and the supply and demand difference is obvious. However, the industrial application scene, especially the heat utilization scene of industry, such as medicine and chemical industry, food processing and wine distillation, etc., often uses in the daytime, and at this time, it is the peak period and the peak period of industrial electricity, not only the electricity price is expensive, but also the large amount of power supply will bring greater burden to the power grid, which may bring hidden danger. Therefore, it is necessary to reform the heating system according to the difference of the power supply of the power grid, couple the heat storage system, further realize the consumption of photovoltaic heat, realize the most reasonable and economic energy supply mode. At the same time, in the process of high-temperature steam application, the actual industrial application temperature demand is far lower than the heat supply temperature of the steam, which cannot be directly used, and the supplied high-temperature and high-pressure steam needs to be cooled and decompressed before use, which is often realized through pressure reducing valve and corresponding equipment. At this time, the reduction of steam temperature and pressure will cause the loss of steam energy, causing unnecessary waste. SUMMARY

[0004] The purpose of the present application is to overcome the shortcomings of the prior art and provide a high-efficiency storage system based on industrial thermal energy cascade utilization.

[0005] The technical scheme of the present application provides a high-efficiency storage system based on industrial thermal energy cascade utilization, comprising:

[0006] A high-temperature heat pump and water vapor compressor module is used to generate saturated steam.

[0007] A steam temperature and pressure increasing module is connected to the first outlet of the high-temperature heat pump and water vapor compressor module, and is used to increase the temperature and pressure of the steam.

[0008] The secondary and tertiary temperature and pressure increasing modules are connected in series with the steam temperature and pressure increasing module, and are used for multi-stage processing of steam with unqualified parameters to improve the steam temperature and pressure.

[0009] The steam storage module is connected to the second outlet of the high-temperature heat pump and water vapor compressor module, and is used for storing steam and connecting with users.

[0010] The organic Rankine cycle module is connected with the steam storage module, and is used for converting steam heat energy into electric energy.

[0011] The control valve group is used for controlling the steam flow direction to control the operation mode of the system.

[0012] The steam temperature and pressure increasing module and the secondary and tertiary temperature and pressure increasing modules all include an electromagnetic induction mechanism, a Venturi tube and a Tesla valve connected in sequence; the outlet of the Venturi tube is provided with a liquid injection pump; the first outlet of the high-temperature heat pump and water vapor compressor module is connected with the electromagnetic induction mechanism, and the high-temperature heat pump and water vapor compressor module further has a third outlet connected with the Venturi tube.

[0013] The steam storage module includes a steam accumulator and a water supplement pump connected with the steam accumulator; the steam accumulator is divided into a saturated water space and a saturated vapor space; the steam accumulator is connected with the second outlet of the high-temperature heat pump and water vapor compressor module, the organic Rankine cycle module and the user respectively.

[0014] The organic Rankine cycle module includes a steam turbine, a generator, a condenser, a condensate pump, an intermediate water storage tank and a feed water pump; the inlet of the steam turbine is connected with the steam accumulator, the outlet is connected with the user and the condenser in two ways, the other end of the condenser is connected with the condensate pump, the other end of the condensate pump is connected with the intermediate water storage tank, and the other end of the intermediate water storage tank is connected with the steam accumulator.

[0015] The control valve group comprises a first stop valve, a second stop valve, a third stop valve, a fourth stop valve, a fifth stop valve, a sixth stop valve, a seventh stop valve, an eighth stop valve, a ninth stop valve, a tenth stop valve and an eleventh stop valve, a first check valve and a second check valve; the first stop valve is arranged between the first outlet of the high-temperature heat pump and water vapor compressor module and the electromagnetic induction mechanism; the second stop valve is arranged between the third outlet of the high-temperature heat pump and water vapor compressor module and the Venturi tube; the second outlet of the high-temperature heat pump and water vapor compressor module is provided with a first pipeline; the first pipeline is connected with the steam accumulator and the user in two branches respectively; the fifth stop valve and the first check valve are arranged on the branch of the first pipeline connected with the steam accumulator in sequence; the third stop valve and the fourth stop valve are arranged on the branch of the first pipeline connected with the user in sequence; the steam accumulator is provided with a second pipeline connected with the first pipeline, and the connection position of the second pipeline with the first pipeline is between the third stop valve and the fourth stop valve; the sixth stop valve and the second check valve are arranged on the second pipeline in sequence; the branch of the first pipeline connected with the user and located between the third stop valve and the fourth stop valve is further connected with a third pipeline connected with the inlet of the steam turbine; the ninth stop valve is arranged on the third pipeline; the outlet of the steam turbine is connected with a fourth pipeline; the fourth pipeline is connected with the user and the condenser in two branches respectively; the tenth stop valve is arranged on the pipeline of the fourth pipeline connected with the user; the eleventh stop valve is arranged on the pipeline of the fourth pipeline connected with the condenser; the steam accumulator is provided with a drainage pipeline; the eighth stop valve is arranged on the drainage pipeline; the seventh stop valve is arranged on the pipeline of the water supply pump connected with the steam accumulator.

[0016] The operation modes comprise:

[0017] Mode one: the third stop valve and the fourth stop valve are opened, and the remaining stop valves are all closed; the steam generated by the high-temperature heat pump and water vapor compressor module is directly used by the user;

[0018] Mode two: the third stop valve and the ninth stop valve are opened, and the first stop valve, the second stop valve, the fourth stop valve, the fifth stop valve, the sixth stop valve, the seventh stop valve, the eighth stop valve, the tenth stop valve and the eleventh stop valve are closed; the steam generated by the high-temperature heat pump and water vapor compressor module enters the organic Rankine cycle module to generate electricity;

[0019] Mode three: the first stop valve and the second stop valve are opened, and the third stop valve, the fifth stop valve, the seventh stop valve and the eighth stop valve are closed; the steam generated by the high-temperature heat pump and water vapor compressor module enters the steam temperature-increasing and pressure-increasing module and the secondary and tertiary temperature-increasing and pressure-increasing modules to be temperature-increased and pressure-increased and then used;

[0020] Mode four: the fifth stop valve is opened, the first stop valve, the second stop valve, the third stop valve, the sixth stop valve, the seventh stop valve and the eighth stop valve are closed, the steam generated by the high-temperature heat pump and water vapor compressor module enters the saturated water space in the steam accumulator through the fifth stop valve and the first check valve in turn, in the saturated water space, the steam and the saturated water are fully heat exchanged to ensure the saturation state of the steam, and then the steam enters the saturated steam space of the steam accumulator to store energy and supply the required heat energy at any time;

[0021] Mode five: in the state of mode four, the fourth stop valve and the sixth stop valve are opened, and the ninth stop valve is closed, the steam stored in the steam accumulator is used by the user;

[0022] Mode six: in the state of mode four, the sixth stop valve, the ninth stop valve and the tenth stop valve are opened, the fourth stop valve and the eleventh stop valve are closed, the steam stored in the steam accumulator enters the organic Rankine cycle module to generate electricity and is used by the user;

[0023] Mode seven: in the state of mode four, the sixth stop valve, the ninth stop valve and the eleventh stop valve are opened, the fourth stop valve and the tenth stop valve are closed, the steam stored in the steam accumulator enters the organic Rankine cycle module to generate electricity and returns to the steam accumulator again.

[0024] The secondary and tertiary temperature-increasing and pressure-increasing modules are further provided with a secondary steam storage module and a secondary organic Rankine cycle module.

[0025] By adopting the technical scheme, the application has the following beneficial effects: the high-temperature heat pump and water vapor compressor module, the steam temperature-increasing and pressure-increasing module, the secondary and tertiary temperature-increasing and pressure-increasing modules, the steam storage module and the organic Rankine cycle module are arranged, the operation mode of the system is controlled by controlling the steam flow direction through the control valve group, the cascade utilization of heat energy is realized, the efficient storage and generation of steam heat are realized, the bottleneck of low energy efficiency of high-temperature and high-pressure steam production is broken, the full utilization of steam heat and the efficient realization of steam energy storage are realized, the use of the energy storage technology effectively avoids the use of peak power and sharp peak power in power application, the overall operation cost of the system is reduced, and the economic benefit is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to make the content of the application more easily understood, the application will be further described in detail below according to specific embodiments and in combination with the drawings.

[0027] Figure 1 It is a structural schematic diagram of the application.

[0028] Figure 2 It is a structural schematic diagram of the control valve group of the application.

[0029] Reference signs in the drawings are:

[0030] High-temperature heat pump and water vapor compressor module 1, steam temperature and pressure increasing module 2, electromagnetic induction mechanism 21, Venturi tube 22, Tesla valve 23, liquid injection water pump 24, two-stage and three-stage temperature and pressure increasing module 3, steam heat storage module 4, steam heat accumulator 41, water supplement pump 42, organic Rankine cycle module 5, steam turbine 51, generator 52, condenser 53, condensate pump 54, intermediate water storage tank 55, feed water pump 56, first stop valve 601, second stop valve 602, third stop valve 603, fourth stop valve 604, fifth stop valve 605, sixth stop valve 606, seventh stop valve 607, eighth stop valve 608, ninth stop valve 609, tenth stop valve 610, eleventh stop valve 611, first check valve 612, and second check valve 613. DETAILED DESCRIPTION

[0031] EMBODIMENT

[0032] An efficient storage system based on industrial thermal energy cascade utilization according to an embodiment of the present application is shown in FIG. 1, which comprises: Figure 1 and Figure 2

[0033] High-temperature heat pump and water vapor compressor module 1, used for generating 160℃, 618.2kPa saturated steam;

[0034] Steam temperature and pressure increasing module 2, connected to the first outlet of the high-temperature heat pump and water vapor compressor module 1, used for increasing the temperature and pressure of the steam;

[0035] Two-stage and three-stage temperature and pressure increasing module 3, connected in series with the steam temperature and pressure increasing module 2, used for multi-stage processing of steam with substandard parameters to increase the temperature and pressure of the steam;

[0036] Steam heat storage module 4, connected to the second outlet of the high-temperature heat pump and water vapor compressor module 1, used for storing steam and connecting with users;

[0037] Organic Rankine cycle module 5, connected with the steam heat storage module 4, used for converting steam heat energy into electric energy;

[0038] Control valve group, used for controlling the flow direction of steam to control the operation mode of the system. The embodiment builds a complete industrial thermal energy cascade utilization system, integrating four functions of steam production, pressure increasing, storage and power generation. The energy flow path is clear through modular design: high-temperature heat pump steam generation (160℃ basic steam) → multi-stage pressure increasing (increased to 180~200℃) → heat storage → power generation or direct supply to users. The control valve group realizes flexible operation and lays a foundation for subsequent multi-mode switching.

[0039] ​Further, the steam temperature and pressure increasing module 2 and the secondary and tertiary temperature and pressure increasing module 3 each comprises an electromagnetic induction mechanism 21, a Venturi tube 22 and a Tesla valve 23 connected in sequence; the outlet of the Venturi tube 22 is provided with a liquid injection pump 24; the first outlet of the high-temperature heat pump and water vapor compressor module 1 is connected with the electromagnetic induction mechanism 21, and the high-temperature heat pump and water vapor compressor module 1 further has a third outlet connected with the Venturi tube 22. The embodiment adopts the combination of electromagnetic induction, Venturi tube and Tesla valve: the steam is directly heated by electromagnetic induction to ensure high-efficiency temperature rise; the Venturi tube is used for pressure boosting to simplify the mechanical structure, the Tesla valve is used for preventing backflow to ensure the stability of pressure boosting, and the liquid injection pump is designed to adjust the superheat degree of the steam by water injection to avoid overheating after pressure boosting and maintain the saturated steam state. Through the secondary and tertiary temperature and pressure increasing module 3, the steam at 160℃ / 0.62MPa is increased to 200℃ / 1.5MPa, breaking through the single-stage temperature rise limit of the heat pump and meeting the demand of industrial high-parameter steam.

[0040] Further, the steam heat storage module 4 comprises a steam heat accumulator 41 and a water supplement pump 42 connected with the steam heat accumulator 41; the steam heat accumulator 41 is divided into a saturated water space and a saturated steam space; the steam heat accumulator 41 is connected with the second outlet of the high-temperature heat pump and water vapor compressor module 1, the organic Rankine cycle module 5 and the user respectively. The steam heat storage module 4 can efficiently store the heat energy generated by the high-temperature heat pump and water vapor compressor module 1. The steam heat storage module of the embodiment adopts a steam-water separation heat storage structure: the saturated water space stores sensible heat, and the saturated steam space stores latent heat, thereby improving the heat storage density. The bidirectional connection design: simultaneously connects the heat pump, the user and the organic Rankine cycle module to realize the linkage of heat energy "production-storage-use"; in addition, the water level is dynamically adjusted by the water supplement pump: the vapor-liquid balance in the heat accumulator is maintained to ensure the stability of the steam quality.

[0041] Further, the organic Rankine cycle module 5 comprises a steam turbine 51, a generator 52, a condenser 53, a condensate pump 54, an intermediate water storage tank 55 and a feed water pump 56; the inlet of the steam turbine 51 is connected with the steam heat accumulator 41, the outlet is connected with the user and the condenser 53 in two ways, the other end of the condenser 53 is connected with the condensate pump 54, the other end of the condensate pump 54 is connected with the intermediate water storage tank 55, and the other end of the intermediate water storage tank 55 is connected with the steam heat accumulator 41. The organic Rankine cycle module 5 can generate electricity by using heat energy, thereby realizing the rational utilization of electric energy, for example, the electricity generation mode of the organic Rankine cycle module is started during peak-valley electricity, thereby reducing the production cost. The heat energy gradient utilization core of the embodiment: converts the surplus steam heat energy into electric energy, which is especially suitable for peak-valley electricity arbitrage. The condenser waste heat recovery: the condensed water returns to the heat accumulator through the water storage tank to recover low-temperature waste heat and avoid energy waste. The steam turbine outlet branch design: considers the steam directly supplied to the user or returned to the heat accumulator after electricity generation.

[0042] Further, the control valve group comprises a first stop valve 601, a second stop valve 602, a third stop valve 603, a fourth stop valve 604, a fifth stop valve 605, a sixth stop valve 606, a seventh stop valve 607, an eighth stop valve 608, a ninth stop valve 609, a tenth stop valve 610, and an eleventh stop valve 611, a first check valve 612, and a second check valve 613; the first stop valve 601 is arranged between the first outlet of the high-temperature heat pump and water vapor compressor module 1 and the electromagnetic induction mechanism 21; the second stop valve 602 is arranged between the third outlet of the high-temperature heat pump and water vapor compressor module 1 and the Venturi tube 22; the second outlet of the high-temperature heat pump and water vapor compressor module 1 is provided with a first pipeline; the first pipeline is connected to the steam accumulator 41 and the user in two branches respectively; the fifth stop valve 605 and the first check valve 612 are arranged in sequence on the branch of the first pipeline connected to the steam accumulator 41; the third stop valve 603 and the fourth stop valve 604 are arranged in sequence on the branch of the first pipeline connected to the user; the steam accumulator 41 is provided with a second pipeline connected to the first pipeline, and the connection between the second pipeline and the first pipeline is located between the third stop valve 603 and the fourth stop valve 604; the sixth stop valve 606 and the second check valve 613 are arranged in sequence on the second pipeline; the branch of the first pipeline connected to the user between the third stop valve 603 and the fourth stop valve 604 is further connected to a third pipeline connected to the inlet of the steam turbine 51; the ninth stop valve 609 is arranged on the third pipeline; the outlet of the steam turbine 51 is connected to a fourth pipeline; the fourth pipeline is connected to the user and the condenser 53 in two branches respectively; the tenth stop valve 610 is arranged on the pipeline connected to the user; the eleventh stop valve 611 is arranged on the pipeline connected to the condenser 53; the steam accumulator 41 has a drain pipeline; the eighth stop valve 608 is arranged on the drain pipeline; the seventh stop valve 607 is arranged on the pipeline connecting the water supply pump 42 and the steam accumulator 41. In this embodiment, the complex combination of one stop valve and two check valves precisely isolates or connects each module, and the valve state combination covers all operating scenarios.

[0043] Further, the operating mode comprises:

[0044] Mode one: the third stop valve 603 and the fourth stop valve 604 are opened, and the remaining stop valves are all closed; the steam generated by the high-temperature heat pump and water vapor compressor module 1 is directly used by the user, responding to the immediate demand, and zero energy storage loss;

[0045] Mode two: the third stop valve 603 and the ninth stop valve 609 are opened, the first stop valve 601, the second stop valve 602, the fourth stop valve 604, the fifth stop valve 605, the sixth stop valve 606, the seventh stop valve 607, the eighth stop valve 608, the tenth stop valve 610 and the eleventh stop valve 611 are closed, the steam generated by the high-temperature heat pump and water vapor compressor module 1 enters the organic Rankine cycle module 5 to generate electricity, and the excess steam is converted into electricity in real time;

[0046] Mode three: the first stop valve 601 and the second stop valve 602 are opened, and the third stop valve 603, the fifth stop valve 605, the seventh stop valve 607 and the eighth stop valve 608 are closed; the steam generated by the high-temperature heat pump and water vapor compressor module 1 enters the steam temperature and pressure increasing module 2 and the two-stage and three-stage temperature and pressure increasing module 3 after temperature and pressure increasing, and is used to meet the high-parameter industrial process demand;

[0047] Mode four: the fifth stop valve 605 is opened, and the first stop valve 601, the second stop valve 602, the third stop valve 603, the sixth stop valve 606, the seventh stop valve 607 and the eighth stop valve 608 are closed; the steam generated by the high-temperature heat pump and water vapor compressor module 1 enters the saturated water space in the steam accumulator 41 through the fifth stop valve 605 and the first check valve 612 in sequence, in the saturated water space, the steam and the saturated water are fully heat exchanged to ensure the saturation state of the steam, and then the steam enters the saturated steam space of the steam accumulator 41 to store energy, and supply the required heat energy at any time, store heat during off-peak electricity period, and smooth the load fluctuation;

[0048] Mode five: in the state of mode four, the fourth stop valve 604 and the sixth stop valve 606 are opened, and the ninth stop valve 609 is closed; the steam stored in the steam accumulator 41 is used by the user, the steam is stably supplied during the energy release stage, and the continuity of energy use is ensured;

[0049] Mode six: in the state of mode four, the sixth stop valve 606, the ninth stop valve 609 and the tenth stop valve 610 are opened, the fourth stop valve 604 and the eleventh stop valve 611 are closed, the steam stored in the steam accumulator 41 enters the organic Rankine cycle module 5 to generate electricity and then is used by the user, and the energy rationalization is realized;

[0050] Mode seven: in the state of mode four, the sixth stop valve 606, the ninth stop valve 609 and the eleventh stop valve 611 are opened, the fourth stop valve 604 and the tenth stop valve 610 are closed; the steam stored in the steam accumulator 41 enters the organic Rankine cycle module 5 to generate electricity and then returns to the steam accumulator 41, and the maximum electric energy yield is realized.

[0051] Further, the secondary and tertiary temperature and pressure increasing modules 3 are also provided with secondary steam heat storage modules and secondary organic Rankine cycle modules with the same structure as described above, so that the heat energy after temperature and pressure increasing can be further reasonably applied, further reducing the production cost and improving the economic benefit.

[0052] The high-efficiency storage system based on industrial heat energy cascade utilization of the present embodiment is provided with a high-temperature heat pump and water vapor compressor module 1, a steam temperature and pressure increasing module 2, secondary and tertiary temperature and pressure increasing modules 3, a steam heat storage module 4 and an organic Rankine cycle module 5, and the operation mode of the system is controlled by controlling the steam flow direction through the control valve group, so as to realize the cascade utilization of heat energy, realize the efficient storage and generation of steam heat, break through the bottleneck of low energy efficiency of high-temperature and high-pressure steam production, realize the full utilization of steam heat energy and the efficient realization of steam energy storage, and the use of energy storage technology effectively avoids the use of peak power and sharp peak power in power application, reduces the overall operation cost of the system and improves the economic benefit.

[0053] The above specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the present application, and it should be understood that the above description is only for specific embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An efficient storage system based on industrial thermal energy cascade utilization, characterized in that, Comprise: High temperature heat pump and water vapor compressor module (1) for generating saturated steam; Steam temperature and pressure increasing module (2) connected to the first outlet of high temperature heat pump and water vapor compressor module (1) for increasing the temperature and pressure of steam; Two-stage and three-stage temperature and pressure increasing module (3) connected in series with steam temperature and pressure increasing module (2) for multi-stage processing of steam with substandard parameters to increase the temperature and pressure of steam; Steam heat storage module (4) connected to the second outlet of high temperature heat pump and water vapor compressor module (1) for storing steam and connecting with users; Organic Rankine cycle module (5) connected with steam heat storage module (4) for converting steam heat energy into electric energy; Control valve group for controlling the running mode of the system by controlling the steam flow direction; The control valve group comprises a first stop valve (601), a second stop valve (602), a third stop valve (603), a fourth stop valve (604), a fifth stop valve (605), a sixth stop valve (606), a seventh stop valve (607), an eighth stop valve (608), a ninth stop valve (609), a tenth stop valve (610), and an eleventh stop valve (611), a first check valve (612), and a second check valve (613); the first stop valve (601) is arranged between the first outlet of the high-temperature heat pump and water vapor compressor module (1) and the electromagnetic induction mechanism (21); the second stop valve (602) is arranged between the third outlet of the high-temperature heat pump and water vapor compressor module (1) and the Venturi tube (22); the second outlet of the high-temperature heat pump and water vapor compressor module (1) is provided with a first pipeline; the first pipeline is connected with the steam accumulator (41) and the user in two branches respectively; the fifth stop valve (605) and the first check valve (612) are arranged in sequence on the branch through which the first pipeline is connected with the steam accumulator (41); the third stop valve (603) and the fourth stop valve (604) are arranged in sequence on the branch through which the first pipeline is connected with the user; the steam accumulator (41) is provided with a second pipeline connected with the first pipeline, and the connection between the second pipeline and the first pipeline is located between the third stop valve (603) and the fourth stop valve (604); the sixth stop valve (606) and the second check valve (613) are arranged in sequence on the second pipeline; the branch through which the first pipeline is connected with the user, between the third stop valve (603) and the fourth stop valve (604), is further connected with a third pipeline connected with the inlet of the steam turbine (51); the ninth stop valve (609) is arranged on the third pipeline; the outlet of the steam turbine (51) is connected with a fourth pipeline; the fourth pipeline is connected with the user and the condenser (53) in two branches respectively; the tenth stop valve (610) is arranged on the pipeline through which the fourth pipeline is connected with the user; the eleventh stop valve (611) is arranged on the pipeline through which the fourth pipeline is connected with the condenser (53); the steam accumulator (41) has a drainage pipeline; the eighth stop valve (608) is arranged on the drainage pipeline; the seventh stop valve (607) is arranged on the pipeline through which the water supplement pump (42) is connected with the steam accumulator (41).

2. The high-efficiency storage system based on industrial thermal energy cascade utilization according to claim 1, characterized in that: The steam temperature and pressure increasing module (2) and the secondary and tertiary temperature and pressure increasing modules (3) all comprise the electromagnetic induction mechanism (21), the Venturi tube (22), and the Tesla valve (23) which are sequentially communicated; the outlet of the Venturi tube (22) is provided with a liquid injection pump (24); the first outlet of the high-temperature heat pump and water vapor compressor module (1) is connected with the electromagnetic induction mechanism (21), and the high-temperature heat pump and water vapor compressor module (1) further has the third outlet connected with the Venturi tube (22).

3. The high-efficiency storage system based on industrial thermal energy cascade utilization according to claim 2, characterized in that: The steam heat storage module (4) comprises a steam accumulator (41) and a make-up water pump (42) connected with the steam accumulator (41); the steam accumulator (41) is internally divided into a saturated water space and a saturated steam space; the steam accumulator (41) is connected with the high-temperature heat pump and water vapor compressor module (1), the organic Rankine cycle module (5) and the user respectively.

4. The high-efficiency storage system based on industrial thermal energy cascade utilization according to claim 3, characterized in that: The organic Rankine cycle module (5) comprises a steam turbine (51), a generator (52), a condenser (53), a condensate pump (54), an intermediate water storage tank (55) and a feed water pump (56); the inlet of the steam turbine (51) is connected with the steam accumulator (41), the outlet is connected with the user and the condenser (53) respectively in two ways, the other end of the condenser (53) is connected with the condensate pump (54), the other end of the condensate pump (54) is connected with the intermediate water storage tank (55), and the other end of the intermediate water storage tank (55) is connected with the steam accumulator (41).

5. The high-efficiency storage system based on industrial thermal energy cascade utilization according to claim 1, characterized in that: The operation modes comprise: Mode one: the third stop valve (603) and the fourth stop valve (604) are opened, and the rest of the stop valves are all closed, the steam generated by the high-temperature heat pump and water vapor compressor module (1) is directly used by the user; Mode two: the third stop valve (603) and the ninth stop valve (609) are opened, the first stop valve (601), the second stop valve (602), the fourth stop valve (604), the fifth stop valve (605), the sixth stop valve (606), the seventh stop valve (607), the eighth stop valve (608), the tenth stop valve (610) and the eleventh stop valve (611) are closed, the steam generated by the high-temperature heat pump and water vapor compressor module (1) enters the organic Rankine cycle module (5) to generate electricity; Mode three: the first stop valve (601) and the second stop valve (602) are opened, the third stop valve (603), the fifth stop valve (605), the seventh stop valve (607) and the eighth stop valve (608) are closed; the steam generated by the high-temperature heat pump and water vapor compressor module (1) enters the steam temperature and pressure increasing module (2) and the two-stage and three-stage temperature and pressure increasing module (3) to increase the temperature and pressure and then is used; Mode four: the fifth stop valve (605) is opened, the first stop valve (601), the second stop valve (602), the third stop valve (603), the sixth stop valve (606), the seventh stop valve (607) and the eighth stop valve (608) are closed, the steam generated by the high-temperature heat pump and water vapor compressor module (1) enters the saturated water space in the steam accumulator (41) through the fifth stop valve (605) and the first check valve (612) in sequence, in the saturated water space, the steam exchanges heat with the saturated water to ensure the saturated state of the steam, then the steam enters the saturated steam space in the steam accumulator (41) to store energy and supply the required heat energy at any time; Mode five: in the state of mode four, the fourth stop valve (604) and the sixth stop valve (606) are opened, the ninth stop valve (609) is closed, the steam stored in the steam accumulator (41) is used by the user. Mode six: in the state of mode four, the sixth stop valve (606), the ninth stop valve (609) and the tenth stop valve (610) are opened, the fourth stop valve (604) and the eleventh stop valve (611) are closed, the steam stored in the steam accumulator (41) is used by the user after being used for power generation in the organic Rankine cycle module (5); Mode seven: in the state of mode four, the sixth stop valve (606), the ninth stop valve (609) and the eleventh stop valve (611) are opened, the fourth stop valve (604) and the tenth stop valve (610) are closed; the steam stored in the steam accumulator (41) returns to the steam accumulator (41) again after being used for power generation in the organic Rankine cycle module (5).

6. The high-efficiency storage system based on industrial thermal energy cascade utilization according to any one of claims 1-5, characterized in that: The secondary and tertiary temperature-increasing and pressure-increasing module (3) is further provided with a secondary steam accumulator module and a secondary organic Rankine cycle module.

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