Carbon dioxide trapping and utilizing system and method

Abstract

The invention discloses a system and a method for capturing and utilizing carbon dioxide. The system comprises a thermal power plant flue gas emission system, a CO2 capturing device, a multi-stage compression system, waste heat power generation equipment, a CO2 industrial production system, a CO2 agricultural production system and a geological storage system, the CO2 trapping device is communicated with a flue gas outlet of a flue gas emission system of a thermal power plant, a flue gas outlet of the CO2 trapping device is divided into two paths, one path is communicated with an inlet of the multi-stage compression system, an outlet of the multi-stage compression system is communicated with a carbon dioxide inlet of the waste heat power generation equipment, an inlet of the CO2 industrial production system and an inlet of the CO2 agricultural production system, and the other path is communicated with an outlet of the CO2 industrial production system. By means of the system and the method, coupling of the thermal power plant and a plurality of independent systems can be achieved.

Description

Technical Field

[0001] The present invention belongs to the field of energy and environmental protection technology, and relates to a carbon dioxide capture and utilization system and method. Background Art

[0002] Traditional thermal power plants are a major source of CO2 emissions, accounting for over 40% of total global power sector carbon emissions. While technologies such as ultra-supercritical units have improved power generation efficiency, they have not fundamentally resolved the CO2 emissions issue. CO2 capture, utilization, and storage technologies can effectively reduce CO2 emissions, but single-mode approaches are economically unsuitable. In recent years, CO2 comprehensive utilization (CCU) technologies have developed rapidly, including waste heat recycling for power generation, building materials production, and agricultural applications. However, existing technologies are mostly standalone systems and are not deeply integrated with thermal power plants. Summary of the Invention

[0003] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art and provide a carbon dioxide capture and utilization system and method, which can achieve the coupling of a thermal power plant with multiple independent systems.

[0004] To achieve the above-mentioned objectives, the present invention discloses a carbon dioxide capture and utilization system, comprising a flue gas emission system of a thermal power plant, a CO2 capture device, a multi-stage compression system, waste heat power generation equipment, a CO2 industrial production system, a CO2 agricultural production system, and a geological storage system;

[0005] The CO2 capture device is connected to the flue gas outlet of the flue gas emission system of the thermal power plant. The flue gas outlet of the CO2 capture device is divided into two routes, one of which is connected to the inlet of the multi-stage compression system, and the outlet of the multi-stage compression system is connected to the carbon dioxide inlet of the waste heat power generation equipment, the inlet of the CO2 industrial production system, and the inlet of the CO2 agricultural production system. The other route is connected to the inlet of the geological storage system.

[0006] The further improvement of the carbon dioxide capture and utilization system of the present invention is:

[0007] Furthermore, a main valve is provided at the outlet of the CO2 capture device.

[0008] Furthermore, a first branch valve is provided between the outlet of the CO2 capture device and the inlet of the multi-stage compression system, and a second branch valve is provided between the outlet of the CO2 capture device and the inlet of the geological storage system.

[0009] Furthermore, a first valve is provided between the outlet of the multi-stage compression system and the carbon dioxide inlet of the waste heat power generation equipment; a second valve is provided between the outlet of the multi-stage compression system and the inlet of the CO2 industrial production system; and a third valve is provided between the outlet of the multi-stage compression system and the inlet of the CO2 agricultural production system.

[0010] Furthermore, the CO2 capture device uses an amine liquid absorbent or a solid adsorption material to adsorb carbon dioxide.

[0011] Furthermore, the multi-stage compression system uses a multi-stage centrifugal compressor.

[0012] Furthermore, it also includes an intelligent management platform for the entire plant. The intelligent management platform for the entire plant is connected to the waste heat power generation equipment, the multi-stage compression system, the CO2 capture device, the CO2 industrial production system, the CO2 agricultural production system and the geological storage system. It is used to monitor the working status of the waste heat power generation equipment, the multi-stage compression system, the CO2 capture device, the CO2 industrial production system, the CO2 agricultural production system and the geological storage system. The intelligent management platform for the entire plant is connected to the first branch valve, the second branch valve, the first valve, the second valve, the third valve and the main valve.

[0013] The present invention discloses a method for capturing and utilizing carbon dioxide, comprising the following steps:

[0014] The CO2 capture device captures CO2 in flue gas through chemical absorption or physical adsorption; the captured and purified part of the CO2 is compressed to a supercritical state using a multi-stage compression system; the supercritical CO2 is used for power generation in waste heat power generation equipment, for the production of raw materials for carbonate building materials in the CO2 industrial production system, and for injection into greenhouses through the CO2 agricultural production system. The captured and purified remaining CO2 enters the geological storage system and is geologically sealed using saline aquifers or depleted oil and gas reservoirs.

[0015] The further improvement of the carbon dioxide capture and utilization method of the present invention is:

[0016] Furthermore, a main valve is provided at the outlet of the CO2 capture device;

[0017] A first branch valve is provided between the outlet of the CO2 capture device and the inlet of the multi-stage compression system, and a second branch valve is provided between the outlet of the CO2 capture device and the inlet of the geological storage system;

[0018] A first valve is provided between the outlet of the multi-stage compression system and the carbon dioxide inlet of the waste heat power generation equipment; a second valve is provided between the outlet of the multi-stage compression system and the inlet of the CO2 industrial production system; and a third valve is provided between the outlet of the multi-stage compression system and the inlet of the CO2 agricultural production system.

[0019] Furthermore, it also includes an intelligent management platform for the entire plant. The intelligent management platform for the entire plant is connected to the waste heat power generation equipment, the multi-stage compression system, the CO2 capture device, the CO2 industrial production system, the CO2 agricultural production system and the geological storage system. It is used to monitor the working status of the waste heat power generation equipment, the multi-stage compression system, the CO2 capture device, the CO2 industrial production system, the CO2 agricultural production system and the geological storage system. The intelligent management platform for the entire plant is connected to the first branch valve, the second branch valve, the first valve, the second valve, the third valve and the main valve.

[0020] The present invention has the following beneficial effects:

[0021] During specific operation, the carbon dioxide capture and utilization system and method described in the present invention utilize a CO2 capture device and a multi-stage compressor to achieve coupling of the flue gas emission system of a thermal power plant with the CO2 capture device, the CO2 industrial production system, the CO2 agricultural production system, and the geological storage system. It should be noted that the present invention uses carbon dioxide as a medium to achieve coupling of a thermal power plant with multiple independent systems, and is extremely practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the present invention. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0025] In the description of the present invention, it is to be understood that the terms “include” and “comprise” indicate the presence of the described features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or collections thereof.

[0026] It should also be understood that the terms used in the present specification are only for the purpose of describing particular embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0027] It should be further understood that the term "and / or" as used in the present specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in the present invention generally indicates that the associated objects are in an "or" relationship.

[0028] It should be understood that although the terms "first," "second," and "third" may be used to describe preset ranges in embodiments of the present invention, these preset ranges should not be limited to these terms. These terms are merely used to distinguish one preset range from another. For example, without departing from the scope of embodiments of the present invention, the first preset range may also be referred to as the second preset range, and similarly, the second preset range may also be referred to as the first preset range.

[0029] The word "if," as used herein, may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to the determination" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)," depending on the context.

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] The accompanying drawings illustrate various schematic diagrams of structures according to embodiments disclosed herein. These figures are not drawn to scale; for clarity, some details are exaggerated and some details may be omitted. The shapes of the various regions and layers shown in the figures, as well as their relative sizes and positional relationships, are merely exemplary and may deviate in practice due to manufacturing tolerances or technical limitations. Those skilled in the art may design regions / layers with different shapes, sizes, and relative positions as needed.

[0032] As is well known, geological storage systems are a technology system that uses engineering methods to inject greenhouse gases such as carbon dioxide into deep geological reservoirs, leveraging the closed nature of geological structures to achieve long-term safe storage. Its core mechanisms include physical and chemical storage, with major types including saline aquifer storage, oil and gas reservoir storage, and coal seam storage. Key technologies involve deep well injection, formation pressure monitoring, and leakage risk assessment. While the system has broad application prospects, it faces technical, economic, and policy challenges. The following is a detailed introduction to geological storage systems:

[0033] The principle of geological storage systems: Geological storage systems essentially involve injecting greenhouse gases like carbon dioxide into appropriately sealed formations deep underground through engineering means, achieving long-term, safe storage and isolation (on the order of thousands to tens of thousands of years). Their core principle is to utilize the sealing properties of geological structures to isolate carbon dioxide from the atmosphere, reducing atmospheric CO2 emissions and thus mitigating global warming and environmental degradation.

[0034] Storage mechanism of geological storage system: Geological storage system mainly includes two basic mechanisms: physical storage and chemical storage: Physical storage mechanism: Supercritical carbon dioxide is captured in the pores at the top of the reservoir through the combined effects of tectonic pressure of the formation, groundwater dynamics, fluid density difference, capillary pressure of the cover rock pores and mineral (coal seam) adsorption. Part of the carbon dioxide captured in the reservoir is distributed in the groundwater in a dissolved state and migrates with the groundwater at a very low speed, while the other part may be adsorbed on the surface of special rock formations (coal seams). Chemical storage mechanism: The rock minerals and groundwater solutions in the reservoir react slowly with the injected supercritical carbon dioxide fluid under certain temperature and pressure conditions to generate carbonate minerals (clastic rock reservoirs) or bicarbonate ions (carbonate rock reservoirs), thereby converting carbon dioxide into new substances and fixing them.

[0035] Example 1

[0036] refer to Figure 1 The present invention discloses a carbon dioxide capture and utilization system, including a flue gas emission system of a thermal power plant, a CO2 capture device, a multi-stage compression system, waste heat power generation equipment, a CO2 industrial production system, a CO2 agricultural production system and a geological storage system;

[0037] The CO2 capture device is connected to the flue gas outlet of the flue gas emission system of the thermal power plant. The flue gas outlet of the CO2 capture device is divided into two routes, one of which is connected to the inlet of the multi-stage compression system, and the outlet of the multi-stage compression system is connected to the carbon dioxide inlet of the waste heat power generation equipment, the inlet of the CO2 industrial production system, and the inlet of the CO2 agricultural production system. The other route is connected to the inlet of the geological storage system.

[0038] The carbon dioxide capture and utilization method of the present invention comprises the following steps:

[0039] The CO2 capture device captures CO2 in flue gas through chemical absorption or physical adsorption; the captured and purified part of the CO2 is compressed to a supercritical state using a multi-stage compression system; the supercritical CO2 is used for power generation in waste heat power generation equipment, for the production of raw materials for carbonate building materials in the CO2 industrial production system, and for injection into greenhouses through the CO2 agricultural production system. The captured and purified remaining CO2 enters the geological storage system and is geologically sealed using saline aquifers or depleted oil and gas reservoirs.

[0040] Example 2

[0041] To further improve this application, refer to Figure 1 The carbon dioxide capture and utilization system of the present invention includes a flue gas emission system of a thermal power plant, a CO2 capture device, a multi-stage compression system, waste heat power generation equipment, a CO2 industrial production system, a CO2 agricultural production system and a geological storage system;

[0042] The CO2 capture device is connected to the flue gas outlet of the flue gas emission system of the thermal power plant. The flue gas outlet of the CO2 capture device is divided into two routes, one of which is connected to the inlet of the multi-stage compression system, and the outlet of the multi-stage compression system is connected to the carbon dioxide inlet of the waste heat power generation equipment, the inlet of the CO2 industrial production system, and the inlet of the CO2 agricultural production system. The other route is connected to the inlet of the geological storage system.

[0043] A main valve is provided at the outlet of the CO2 capture device, a first branch valve is provided between the outlet of the CO2 capture device and the inlet of the multi-stage compression system, a second branch valve is provided between the outlet of the CO2 capture device and the inlet of the geological storage system, a first valve is provided between the outlet of the multi-stage compression system and the carbon dioxide inlet of the waste heat power generation equipment; a second valve is provided between the outlet of the multi-stage compression system and the inlet of the CO2 industrial production system; and a third valve is provided between the outlet of the multi-stage compression system and the inlet of the CO2 agricultural production system.

[0044] The CO2 capture device described in this embodiment uses an amine liquid absorbent or a solid adsorption material, and the capture efficiency is ≥90%.

[0045] In this embodiment, the multi-stage compression system adopts a multi-stage centrifugal compressor with an outlet pressure of 10-15 MPa and a temperature of ≤40°C.

[0046] In this embodiment, the waste heat power generation equipment uses CO2 as a circulating working fluid and uses waste heat from a thermal power plant to generate electricity, with a waste heat utilization rate of over 90%.

[0047] In this embodiment, the CO2 industrial production system and the carbonate building material production line adopt CO2 mineralization reaction technology, with a reaction temperature of 60-80°C and a pressure of 0.5-1.0 MPa.

[0048] In this embodiment, the CO2 agricultural production system controls the CO2 concentration in the greenhouse at 800-1200 ppm and automatically adjusts the CO2 flow rate through a PID controller.

[0049] In this embodiment, the geological storage system adopts CO2 geological storage technology, which has the characteristics of large storage space, long storage time, relatively low cost and can effectively reduce atmospheric carbon emissions.

[0050] In this embodiment, the carbon emission reduction rate of the entire plant is ≥85%, and the CO2 emissions per unit of power generation are ≤100g / kWh.

[0051] The specific working process of the present invention is:

[0052] The CO2 capture device captures CO2 in flue gas by chemical absorption or physical adsorption; compresses the captured and purified part of the CO2 to a supercritical state using a multi-stage compression system (2); utilizes the supercritical CO2 for power generation by waste heat power generation equipment (3), for production of raw materials for carbonate building materials by a CO2 industrial production system (4), and for injection into greenhouses through a CO2 agricultural production system (5) for plant photosynthesis; and the captured and purified remaining CO2 enters a geological storage system for geological storage in deep saline water layers or depleted oil and gas reservoirs.

[0053] The plant-wide intelligent management platform is connected to the waste heat power generation equipment, multi-stage compression system, CO2 capture device, CO2 industrial production system, CO2 agricultural production system and geological storage system, and is used to monitor the working status of the waste heat power generation equipment, multi-stage compression system, CO2 capture device, CO2 industrial production system, CO2 agricultural production system and geological storage system. The plant-wide intelligent management platform is connected to the first branch valve, the second branch valve, the first valve, the second valve, the third valve and the main valve. The plant-wide intelligent management platform controls the first branch valve, the second branch valve, the first valve, the second valve, the third valve and the main valve to control the amount of carbon dioxide entering the multi-stage compression system, the CO2 industrial production system, the CO2 agricultural production system and the geological storage system. By real-time monitoring of the entire process of CO2 capture, utilization and storage, the low-carbon plant based on thermal power plants and supercritical CO2 cycles can effectively capture and cascade utilize CO2, and realize waste heat power generation and low-carbon transformation of thermal power plants.

[0054] Example 3

[0055] A 300MW coal-fired power plant was transformed into a low-carbon plant with CO2 capture, supercritical CO2 waste heat recovery cycle, and other comprehensive CO2 utilization features. The plant includes the following components:

[0056] 1) Conventional thermal power generation units, including coal-fired boilers, steam turbines, and generators, are used to convert heat energy generated by burning fossil fuels into electrical energy;

[0057] 2) Tail flue CO2 capture unit, installed at the flue gas discharge end of the boiler of a thermal power plant, uses amine liquid absorbent or solid adsorption material to capture CO2 in the flue gas, with a capture efficiency of ≥90%;

[0058] 3) CO2 compression unit: After CO2 purification, a multi-stage centrifugal compressor is used to compress the captured CO2 gas to a supercritical state with an outlet pressure of 10-15MPa and a temperature of ≤40°C;

[0059] 4) Supercritical CO2 waste heat power generation unit uses waste heat from thermal power plants as a heat source and uses CO2 as a circulating working fluid for cyclic power generation, with a waste heat utilization rate of over 90%;

[0060] 5) Comprehensive CO2 utilization and storage unit, with part used for the production of carbonate building materials, part used for greenhouse cultivation, and the remaining part transported via pipelines to deep geological storage;

[0061] 6) Intelligent control module, which monitors the operating parameters of each unit in real time through a sensor network and dynamically adjusts CO2 capture, material box energy distribution and recycling rate.

[0062] Example 4

[0063] refer to Figure 1 The present invention describes a low-carbon plant based on a thermal power plant and a supercritical CO2 cycle. Its tail flue CO2 capture system uses MDEA amine liquid absorption or solid adsorption materials to treat and capture CO2 in flue gas. The capture device efficiency is ≥90%, the captured CO2 purity is ≥99%, and the expected annual capture capacity is 1 million tons.

[0064] Part of the captured CO2 is pressurized by a multi-stage centrifugal compressor and enters the supercritical CO2 waste heat utilization cycle for power generation. The outlet pressure is 10-15MPa and the temperature is ≤40℃. Supercritical CO2 waste heat power generation is carried out using the waste heat from the thermal power plant.

[0065] Example 5

[0066] refer to Figure 1The present invention describes a low-carbon plant based on a thermal power plant and a supercritical CO2 cycle. The CO2 comprehensive utilization system of the low-carbon plant compresses and purifies the captured CO2, and a portion is used in industrial and agricultural fields such as building materials production and greenhouse planting, while the other portion is transported through pipelines to deep geological storage. Among them, carbonate building materials mainly use CO2 to produce light calcium carbonate, with a reaction temperature of 60-80°C and a pressure of 0.5-1.0 MPa. Greenhouse planting uses greenhouse crops to absorb CO2, and the concentration is controlled at 800-1200 ppm. The CO2 flow rate is automatically adjusted by a PID controller, and the CO2 utilization rate reaches 70%. The remaining CO2 enters the storage system and is transported through a CO2 transmission pipeline for geological storage. The storage pressure is 12 MPa and the injection rate is 50 t / h. The CO2 geological storage system has the characteristics of large storage space, long storage time, relatively low cost, and can effectively reduce atmospheric carbon emissions.

[0067] Those skilled in the art will readily identify other embodiments of the present invention after considering the specification and disclosure of the invention. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the following claims.

[0068] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

[0069] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment based on the technical essence of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A carbon dioxide capture and utilization system, characterized in that: Including thermal power plant flue gas emission systems, CO2 capture devices, multi-stage compression systems, waste heat power generation equipment, CO2 industrial production systems, CO2 agricultural production systems and geological storage systems; The CO2 capture device is connected to the flue gas outlet of the flue gas emission system of the thermal power plant. The flue gas outlet of the CO2 capture device is divided into two routes, one of which is connected to the inlet of the multi-stage compression system, and the outlet of the multi-stage compression system is connected to the carbon dioxide inlet of the waste heat power generation equipment, the inlet of the CO2 industrial production system, and the inlet of the CO2 agricultural production system. The other route is connected to the inlet of the geological storage system.

2. The carbon dioxide capture and utilization system according to claim 1, characterized in that: A main valve is provided at the outlet of the CO2 capture device.

3. The carbon dioxide capture and utilization system according to claim 2, characterized in that: A first branch valve is provided between the outlet of the CO2 capture device and the inlet of the multi-stage compression system, and a second branch valve is provided between the outlet of the CO2 capture device and the inlet of the geological storage system.

4. The carbon dioxide capture and utilization system according to claim 3, characterized in that: A first valve is provided between the outlet of the multi-stage compression system and the carbon dioxide inlet of the waste heat power generation equipment; a second valve is provided between the outlet of the multi-stage compression system and the inlet of the CO2 industrial production system; and a third valve is provided between the outlet of the multi-stage compression system and the inlet of the CO2 agricultural production system.

5. The carbon dioxide capture and utilization system according to claim 1, characterized in that: The CO2 capture device uses an amine liquid absorbent or a solid adsorption material to adsorb carbon dioxide.

6. The carbon dioxide capture and utilization system according to claim 1, characterized in that: The multi-stage compression system uses a multi-stage centrifugal compressor.

7. The carbon dioxide capture and utilization system according to claim 4, characterized in that: It also includes an intelligent management platform for the entire plant, which is connected to the waste heat power generation equipment, multi-stage compression system, CO2 capture device, CO2 industrial production system, CO2 agricultural production system and geological storage system. It is used to monitor the working status of the waste heat power generation equipment, multi-stage compression system, CO2 capture device, CO2 industrial production system, CO2 agricultural production system and geological storage system. The intelligent management platform for the entire plant is connected to the first branch valve, the second branch valve, the first valve, the second valve, the third valve and the main valve.

8. A method for capturing and utilizing carbon dioxide, characterized in that: The carbon dioxide capture and utilization system according to claim 7 comprises the following steps: The CO2 capture device captures CO2 in flue gas by chemical absorption or physical adsorption; compresses the captured and purified part of the CO2 to a supercritical state using a multi-stage compression system (2); uses the supercritical CO2 for power generation by waste heat power generation equipment (3), for raw materials for producing carbonate building materials by a CO2 industrial production system (4), and for injection into greenhouses through a CO2 agricultural production system (5); the captured and purified remaining CO2 enters a geological storage system for geological storage using saline aquifers or depleted oil and gas reservoirs.

9. The method for capturing and utilizing carbon dioxide according to claim 8, wherein: A main valve is provided at the outlet of the CO2 capture device; A first branch valve is provided between the outlet of the CO2 capture device and the inlet of the multi-stage compression system, and a second branch valve is provided between the outlet of the CO2 capture device and the inlet of the geological storage system; A first valve is provided between the outlet of the multi-stage compression system and the carbon dioxide inlet of the waste heat power generation equipment; a second valve is provided between the outlet of the multi-stage compression system and the inlet of the CO2 industrial production system; and a third valve is provided between the outlet of the multi-stage compression system and the inlet of the CO2 agricultural production system.

10. The method for capturing and utilizing carbon dioxide according to claim 9, wherein: It also includes an intelligent management platform for the entire plant, which is connected to the waste heat power generation equipment, multi-stage compression system, CO2 capture device, CO2 industrial production system, CO2 agricultural production system and geological storage system. It is used to monitor the working status of the waste heat power generation equipment, multi-stage compression system, CO2 capture device, CO2 industrial production system, CO2 agricultural production system and geological storage system. The intelligent management platform for the entire plant is connected to the first branch valve, the second branch valve, the first valve, the second valve, the third valve and the main valve.

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